Horse Body Condition Scoring Explained: A Practical Guide

A horse body condition score is the most useful number a UK owner can write in a yard diary. It tells you in structured terms whether your horse is too thin, too fat or in the right window, and it does so months before the rug straps or the girth holes make the point for you. It informs feeding decisions, vetting reports and laminitis risk management, and it removes the eye of the beholder problem that makes owners consistently underestimate fat on their own horses.

This guide explains how body condition scoring works under the 0 to 5 fat scoring scale used by the British Horse Society and the international 1 to 9 Henneke scale, where to put your hands, what the scores actually mean for feeding and welfare, and how to use the system through a British year. It also covers the Cresty Neck Score, a separate and often overlooked measure that matters more for laminitis risk than the body condition score itself.

What Is a Horse Body Condition Score?

A body condition score, usually shortened to BCS, is a structured hands-on assessment of how much fat a horse carries over a set of anatomical landmarks: the neck, the withers, behind the shoulder, the ribs, the loin and the tail head. Fat is deposited in these places in a reasonably predictable order, so what you feel at each one tells you something about the whole animal.

The crucial point, and the reason a body condition score is not simply a weight, is that the BCS distinguishes fat from muscle. A fit Thoroughbred in training and a fat native pony can read identically on a weighbridge while sitting at opposite ends of the welfare risk scale. Weight is a single number about mass. Condition score is a description of what that mass is made of and where it sits.

It is also a husbandry skill rather than a diagnostic test. Scoring does not tell you why a horse is losing condition. It tells you, reliably and early, that it is, which is what gives you time to find out why.

Why Body Condition Scoring Matters More Than the Weight Tape

Equine obesity is the largest single preventable welfare problem in the British horse population, and it is one that owners are demonstrably poor at recognising in their own animals. Excess fat drives insulin dysregulation, insulin dysregulation damages the lamellar tissue inside the hoof, and the result is laminitis. By the time a horse is visibly footsore, the metabolic groundwork has been laid over months or years.

At the other end of the scale, loss of condition is an early warning for a long list of problems: Cushing’s disease (PPID), dental disease, parasite burden, gastric ulceration, chronic colic and poorly fitting tack among them. A horse dropping condition through a winter is rarely just off its feed. It is signalling something, and a tracked score is what catches the signal while it is still cheap to act on.

The practical argument for scoring rather than weighing is simply that a score is available to everybody. A weighbridge requires a weighbridge. Your hands are already on the yard.

The Three Scales in Use, and Why They Get Confused

This is worth settling before anything else, because it is the single biggest source of confusion when owners compare notes, and most guides skip it entirely. There are three scoring systems circulating in the English-speaking equestrian world, and they use overlapping numbers to mean completely different things.

• The 0 to 5 fat scoring scale. Published by Carroll and Huntington in the Equine Veterinary Journal in 1988. Zero is emaciated, five is grossly obese, and three is the target for most horses. This is the scale the BHS, Blue Cross, Redwings and most UK welfare organisations teach, and it is what a British yard usually means by fat scoring.
• The 1 to 9 Henneke scale. Published by Henneke and colleagues at Texas A&M University in 1983. One is poor, nine is extremely fat, and five is the ideal. This is the scale used in the great majority of peer-reviewed equine research and throughout North America.
• A 1 to 5 variant. Some British practices and feed companies use a 1 to 5 version in which one is emaciated and five is obese, making three the target. It looks almost identical to the 0 to 5 scale in conversation but the bottom of the range is shifted by a whole point.

The consequence is real and it is not hypothetical. “My horse is a three” means a healthy horse on either the 0 to 5 or the 1 to 5 scale, and a genuinely thin horse on the Henneke scale. “She scored a five” means ideal in America and an emergency in Britain. Whenever you record a score, in a diary, a vetting or a message to your vet, write the scale next to it. A bare number is ambiguous.

The BHS 0 to 5 Fat Scoring Scale

The 0 to 5 system divides the horse into three regions, which the British Horse Society sets out as neck, body and quarters. Each region is scored separately from 0 to 5 and the results combined into an overall figure. Scoring the regions separately matters because horses are frequently uneven: a cresty neck on an otherwise reasonable body is a common and clinically significant pattern.

• 0, emaciated. Marked ewe neck, deeply sunken rump, cavities either side of the tail head and croup. Skin tight over prominent bone. Ribs and spinous processes obvious from a distance. A horse at 0 is a welfare emergency and needs a vet the same day.
• 1, very thin. Neck narrow and slack, rump sunken but the skin still pliable. Spine and ribs easily visible with a deep depression under the tail.
• 2, lean. Neck narrow but firmer, ribs just visible, backbone covered though the spinous processes are easily felt. Quarters flat rather than rounded. Many racehorses in training and eventers at peak fitness sit legitimately at 2.
• 3, good condition. Neck blends smoothly into the shoulder with no crest. Ribs not visible but easily felt under light pressure. Pelvis well covered and no gutter along the back. This is the target for the large majority of British leisure horses and ponies.
• 4, fat. A soft crest has appeared. Ribs need firm pressure to find. A gutter is starting to form along the spine and the rump is becoming apple shaped. Very common, and the point at which intervention should begin rather than be considered.
• 5, obese. Firm cresty neck, ribs cannot be felt at all, a pronounced gutter down the spine, fat pads at the tail head and behind the shoulder. High risk of laminitis and equine metabolic syndrome.

Half points are normal and useful. A 3.5 is a real and meaningful score, and most working sport horses live between 2.5 and 3.5.

The Henneke 1 to 9 Body Condition Score

The Henneke scale scores six regions individually from 1 to 9 and averages them, giving finer resolution than the 0 to 5 system. It was validated against actual body fat percentage in mares, which is why research uses it: the numbers correspond to something measurable rather than to a description alone.

• 1, poor. Extremely emaciated. Spinous processes, ribs, tail head, hip and pin bones all project prominently. No palpable fatty tissue.
• 2, very thin. A faint covering over the base of the spinous processes. Vertebrae and pelvic structures still prominent.
• 3, thin. Slight fat layer over the body, individual ribs still easily identified, tail head prominent. Withers, shoulders and neck accentuated.
• 4, moderately thin. Faint outline of ribs visible. Prominence of the tail head depends on conformation. Hip bones not visible.
• 5, moderate and ideal. Back flat, ribs not visible but easily felt. Tail head beginning to feel spongy. Withers rounded and the shoulders and neck blending smoothly into the body.
• 6, moderately fleshy. Slight crease down the back. Fat over the ribs feels spongy and fat is beginning to be laid down along the withers, behind the shoulders and along the neck.
• 7, fleshy. A crease down the back. Individual ribs can be felt with firm pressure but there is noticeable fat filling between them.
• 8, fat. Crease down the back, ribs difficult to palpate, soft fat around the tail head, the area along the withers filled in, noticeable thickening of the neck and fat deposited along the inner thighs.
• 9, extremely fat. Obvious crease down the back, patchy fat over the ribs, bulging fat around the tail head, withers, behind the shoulders and along the neck. Fat along the inner thighs may rub. Flank filled in.

Research convention treats 4 to 6 as acceptable, 5 as ideal, and 7 or above as obese. That threshold of 7 is the one used in the UK prevalence studies discussed below, so it is worth remembering.

Converting Between the Scales

There is no formally validated conversion between the 0 to 5 and 1 to 9 systems, because the two were developed independently and describe the horse differently. The approximation below is the one used in everyday British practice, and it is good enough for tracking a horse over time. It is not good enough to be quoted as a clinical equivalence.

• Fat score 0 is roughly Henneke 1
• Fat score 1 is roughly Henneke 2 to 3
• Fat score 2 is roughly Henneke 4
• Fat score 3 is roughly Henneke 5, the ideal on both scales
• Fat score 4 is roughly Henneke 6 to 7
• Fat score 5 is roughly Henneke 8 to 9

The practical advice is to pick one scale, use it consistently for a given horse, and record which one you used. Converting back and forth introduces error at every step, and the trend in one system tells you far more than a converted number in the other.

How to Body Condition Score a Horse, Step by Step

Body condition scoring is a tactile assessment, not a visual one. This is the single most important thing to understand about it. A thick winter coat on a native, or a summer clip on a Thoroughbred, will completely defeat your eye. Score with your hands, on level ground, with the horse standing square and relaxed.

1. The neck

Place a flat hand on the crest behind the poll and run it back towards the withers. At a fat score of 3 the neck blends smoothly into the shoulder with no palpable pad. At 4 there is a soft, pliable crest that moves when you push it sideways. At 5 the crest is firm and does not move. That immobile crest is the finding that matters most, and it is covered in its own section below.

2. The withers

Run your fingertips over the spinous processes at the withers. They should be palpable but covered. Sharply defined withers point to a 2 or lower. Fat filling in the dip either side of them points to a 4 or above.

3. Behind the shoulder

Slide a flat hand backwards from behind the shoulder. A distinct pad of fat just behind the elbow is a classic sign of a 4 or 5, and it is one of the first places condition returns when a restricted horse goes back onto grass. A hollow here suggests a 2 or lower.

4. The ribs

Press with the flat of the hand over the middle of the ribcage. At a fat score of 3 the ribs feel like the knuckles of a loosely closed fist under light pressure: felt easily, not seen. Ribs visible from several metres away suggest 2 or below. Ribs that need deep pressure through obvious padding suggest 4 or above.

5. The loin and topline

Stand directly behind the horse and look down across the back, then run a hand along it. A healthy topline is flat to very slightly rounded. A gutter or crease running down either side of the spine is the cardinal sign of an obese horse. A visible ridge of bone down the spine is the equivalent sign at the thin end.

Be careful here, because this is where fat and muscle are most easily confused. A horse can have a poor topline from lack of correct work while carrying plenty of fat elsewhere, which is a training and physiotherapy problem rather than a feeding one. Our guide to building a horse’s topline covers that distinction in detail.

6. The tail head and quarters

The quarters should be rounded but not domed. Run a hand down either side of the tail head. Soft, wobbling fat pads indicate a 4 or 5. A clear cavity above the croup or either side of the dock indicates 2 or below. Pin bones should be palpable but not sharply visible.

The Cresty Neck Score: The Other Number Your Vet Wants

Almost every guide to horse body condition scoring stops at the BCS. Your vet will not, and this is the most useful thing on this page for anyone managing a laminitis-prone pony.

Fat on the crest of the neck behaves differently from fat elsewhere on the body. It is regional adiposity, and it is more closely associated with insulin dysregulation than overall body fat is. A horse can sit at a perfectly respectable overall body condition score and still carry a hard crest, and that horse is at meaningful risk. This is why a separate Cresty Neck Score, a validated 0 to 5 scale developed by Carter and colleagues and published in The Veterinary Journal in 2009, exists alongside the BCS.

• 0. No visible crest, and none palpable.
• 1. No visible crest, but a slight filling can be felt.
• 2. A crest is visible but is soft and can be easily flattened side to side with a hand.
• 3. The crest is enlarged and thickened. Fat is deposited more heavily in the middle of the neck than at the poll or withers, giving a mounded appearance. The crest can be flattened only with firm pressure.
• 4. The crest is grossly enlarged and thickened, and cannot be flattened at all. It may have begun to lose its straight line and droop to one side.
• 5. The crest is so large that it permanently droops to one side.

A Cresty Neck Score of 3 or more is the point at which the association with insulin dysregulation becomes clear, and it is a reasonable trigger for asking your vet about testing for equine metabolic syndrome. Score the crest every time you score the body, and record the two numbers separately. A crest that is hardening month on month is telling you something that an unchanged overall BCS will hide.

Target Scores by Type, Workload and Life Stage

Target condition varies with breed type, workload and life stage. The figures below reflect the broad consensus across BHS, Blue Cross, Redwings and the major UK feed companies, and are given on both scales.

• Native ponies (Shetland, Exmoor, Dartmoor, New Forest, Welsh sections): fat score 2.5 to 3, Henneke 4 to 5. Natives evolved on poor grazing and are metabolically adapted to it. Anything at 3.5 or above carries real laminitis risk.
• Cobs and warmbloods in light to medium work: fat score 3, Henneke 5.
• Sport horses and eventers in hard work: fat score 2.5 to 3, Henneke 4 to 5.
• Racehorses in training: fat score 2 to 2.5, Henneke 4 to 4.5. Leaner than a leisure horse, legitimately so.
• Broodmares in late pregnancy or lactation: fat score 3 to 3.5, Henneke 5 to 6. A small reserve supports lactation. Our guide to broodmare health goes further into this.
• Stallions in the covering season: fat score 3, Henneke 5.
• Veterans: fat score 3, Henneke 5. The older horse benefits from a modest reserve, not a large one, and losing topline while holding belly fat is a recognised pattern in PPID.

Breed type matters more than most owners allow for. A cob, a Haflinger and an Irish Draught are all good doers and will hold condition on rations that would leave a Thoroughbred dropping weight in a fortnight.

What the UK Obesity Data Actually Shows

It is worth being precise here rather than quoting the round numbers that circulate on equestrian forums. Two British studies are the ones usually cited.

Robin and colleagues at the Animal Health Trust, publishing in the Equine Veterinary Journal in 2015 (PMID 24735219), asked the owners of 792 veterinary-registered horses and ponies across Great Britain to condition score their own animals. The owners used a modified Carroll and Huntington scale running from 1 to 6, not the Henneke 1 to 9 scale, and 31.2% of the animals were scored 5 (fat) or 6 (very fat). That figure is high, and because it relies on owners scoring their own horses, and owners consistently under-score, it is likely to be conservative.

The more interesting study is Giles and colleagues in PeerJ in 2014 (PMC3970797), in which a single trained observer scored 96 leisure horses and ponies with at least six hours’ daily turnout on the 1 to 9 scale, once at the end of winter and again in summer. Obesity (a score of 7 or above) rose from 27.08% at the end of winter to 35.41% in summer, and the obese animals changed less with the seasons than the rest. The telling figure is the first one: more than a quarter of these horses came out of winter still obese, at the point the natural cycle says they should be at their leanest. It is a small cohort and should not be over-generalised, but it undercuts a very widespread assumption about British horse keeping, that winter will take the weight off on its own.

The practical reading is this. Rugging, ad lib haylage and a mild winter mean many British horses never experience the lean season their metabolism evolved to expect. That is not a moral failing on anyone’s part. It is a management default that needs deliberately overriding.

Managing a Horse That Is Too Fat

Weight loss in horses is slow and unglamorous. Aim for around 0.5 to 1% of bodyweight per week, which is roughly 2.5 to 5 kg for a 500 kg horse. Faster than that risks hyperlipaemia, a serious and potentially fatal metabolic derangement that ponies, miniatures and donkeys are particularly prone to when put into sharp negative energy balance. Never crash diet a native pony.

A workable British programme looks like this.

• Restrict forage to around 1.5% of bodyweight on a dry matter basis, and weigh it rather than guessing. Under-reported haynet weight is the most common single reason a diet fails.
• Replace hard feed with a balancer so the horse still gets vitamins, minerals and quality protein without the calories.
• Restrict grazing with strip grazing, a track system or a grazing muzzle. Bare or unimproved paddocks are better than lush leys. The riskiest grass is stressed grass: sunny days following cold nights in spring and autumn, and drought-stressed pasture.
• Build exercise steadily towards five or more sessions a week of genuine work. Fifteen minutes of walking is good for the horse but is not a weight loss intervention. A structured equine fitness plan is more useful than sporadic hacking.
• Use rugs deliberately. An unclipped, healthy horse in a British winter does not need the rug most of them are wearing. Letting a good doer use its own calories for thermoregulation is one of the few free weight loss tools available, as our horse rugging guide explains.
• Re-score every two weeks and record the score, the Cresty Neck Score and a weight tape reading together. Judge the programme on six weeks of trend, not on any single reading.

A word on soaking hay

Soaking hay is routinely recommended to reduce its water-soluble carbohydrate content, and it does work, but the extent to which it works is far less predictable than most advice suggests. Research by Longland and colleagues, published in the Veterinary Record, found that the reduction in water-soluble carbohydrate achieved by soaking varied enormously between different hays, with some losing a great deal and others very little.

The practical consequence matters. Soaking cannot be relied on by itself to make a given hay safe for a laminitis-prone or insulin-dysregulated horse, because you do not know what you started with or how much came out. If you are managing a genuinely high-risk animal, have the forage analysed rather than trusting the bucket. Soak in clean water, keep soaking times sensible, and be aware that long soaks in warm weather degrade hygienic quality and produce effluent that should not go into a watercourse. Haylage is not automatically a lower-sugar option either, and varies widely by cut and producer.

If a horse is genuinely on a restricted intake, doing real work five days a week, and has not shifted over six weeks, stop adjusting the diet and ask your vet for blood testing. Basal ACTH for PPID and an insulin measurement are the logical next step, and there is more detail in our guides to equine obesity management and Cushing’s disease.

Managing a Horse That Is Too Thin

An underweight horse is a different problem, and it is almost never simply a feeding problem. The correct order is to rule out medical causes first and then feed, because pouring calories into a horse with a painful mouth or a heavy worm burden achieves very little.

• Dental examination by a vet or a qualified equine dental technician. Poor mastication is the most common cause of weight loss in horses over about fifteen, and routine rasping is often all that is required. Our horse dentition guide covers what changes with age.
• Targeted worming based on a faecal worm egg count plus a tapeworm test, with encysted small redworm considered separately since they do not show on an egg count. Our equine worming guide sets out a sensible testing-led programme.
• Blood profile covering haematology, biochemistry, basal ACTH for PPID, and an inflammatory marker such as serum amyloid A.
• Gastroscopy if ulcers are suspected. This is the only reliable way to diagnose equine gastric ulcer syndrome. Faecal occult blood tests are marketed for this purpose but the European College of Equine Internal Medicine consensus statement on EGUS concluded they are not reliable, so a negative result should not reassure you and a positive one does not confirm anything. If the clinical picture fits, scope the horse.
• Saddle fit assessment by a qualified fitter. Pain suppresses appetite and performance both.

Once medical causes are addressed, build condition slowly with good quality ad lib forage first, then a fibre-based conditioning feed, and oil if more energy density is needed. Introduce oil gradually over several weeks, and remember that feeding oil increases the horse’s vitamin E requirement, so it needs supplementing alongside. Avoid sudden increases in starch and sugar, which risk colic and laminitis in exactly the horse you are trying to rehabilitate. Our guide to feeding horses for weight gain covers the ration in detail, and horse feeding basics is the starting point if you are building a ration from scratch.

One caution specific to very thin horses. A severely emaciated horse, at fat score 0 or 1, should be refed under veterinary supervision. Rapid reintroduction of feed to a starved animal can cause refeeding syndrome, and this is not a situation to manage from a forum thread.

Seasonal Body Condition Management

Horses evolved as seasonal weight cyclers, gaining through summer grass and losing through a lean winter. Modern British management, with rugs, ad lib conserved forage and no genuine forage shortage, short circuits that cycle, and in the Giles study above more than a quarter of the horses were still obese at the end of winter.

• Autumn, October to November. Most horses can carry half a score above their summer target going into winter. Reduce rugs and forage incrementally as temperatures drop so that a controlled loss actually happens.
• Winter, December to February. Aim for a quarter to a half score of loss in good doers. Lighter rug, turnout on poorer grazing, and soaked hay only if the horse is losing more than intended.
• Spring, March to May. A flashpoint for weight gain as the grass starts growing. Restrict good doers aggressively and reintroduce grazing gradually in horses coming out of winter thin. It is not the only laminitis season, though: a Great Britain cohort study found laminitis throughout the year with no significant difference between seasons (Pollard and colleagues, 2019), and in a case-control study summer and winter carried more risk than spring (Wylie and colleagues, 2013). Watch for recent weight gain and new access to grass, whatever the month.
• Summer, June to September. Score fortnightly. This is when sensible owners discover their pony has gained a whole point without anyone noticing, because it happened at the pace grass grows.

Weight Tapes and Weighbridges Alongside BCS

A body condition score describes fat distribution. A weight tape or weighbridge measures mass. They answer different questions and are considerably more useful together than either is alone.

Weight tapes work from heart girth circumference and are calibrated on average riding horse conformation. They become progressively less reliable on draught types, natives, miniatures and pregnant mares, where the relationship between girth and mass departs from the average. The right way to use a tape is as a tracker of change in the same horse, measured at the same point, at the same time of day, by the same person. Treat the absolute number with scepticism and the trend with respect. If you want to understand how conformation and measurement interact more generally, our guide to how horses are measured is a useful companion.

A weighbridge gives a true weight and is the reference method. Many equine veterinary practices, larger feed merchants and racing yards have one, and some run weigh-in days. Twice a year is plenty for most horses.

Reading them together is where the value is. A horse losing muscle while holding fat, which is the classic PPID pattern and also seen in the ageing horse, can hold a steady weight on the tape while its condition score and topline quietly deteriorate. The reverse, gaining weight on the tape with an unchanged condition score, usually means muscle gained through correct work, which is exactly what you want. Redwings Horse Sanctuary publishes a good practical overview of combining the two.

Six Common Body Condition Scoring Mistakes

1. Scoring with your eyes. Coat length, rugs, grooming and even the light in the barn will mislead you. Use your hands every time.
2. Scoring your own horse without a reference. Owners consistently under-score their own animals. Score somebody else’s horse alongside yours occasionally, or ask your vet or a knowledgeable friend to score independently and compare.
3. Recording a number without the scale. A three means different things on the three systems in circulation. Always write which one you used.
4. Averaging away an uneven horse. A horse with a hard crest and lean quarters is not a comfortable average. Record the regions separately and act on the worst one.
5. Ignoring the crest. The Cresty Neck Score can move while the body score stays put, and it is the one more closely tied to laminitis risk.
6. Scoring too rarely. A single score is nearly useless. The point of the system is the trend, which needs a fortnightly or monthly reading written down somewhere you will actually look at it.

When to Involve the Vet

Call your vet promptly if any of the following apply.

• The condition score drops by a whole point or more within about six weeks with no obvious explanation
• The horse reaches fat score 1 or Henneke 3 or below, which is borderline welfare territory, or fat score 0, which is an emergency
• A firm crest appears, or an existing crest hardens or increases, particularly alongside a Cresty Neck Score of 3 or more
• Condition does not respond to six weeks of a properly executed diet and exercise programme
• There is any sign of foot soreness, a pottery gait or reluctance to turn, which needs assessing the same day
• You are managing a diagnosed case of PPID, EMS or laminitis, where condition scoring becomes a clinical measure rather than a husbandry one

Frequently Asked Questions

What is a good body condition score for a horse?

For most British riding horses in light to medium work the target is a fat score of 3 on the 0 to 5 scale, or 5 on the Henneke 1 to 9 scale. At that score the ribs are not visible but are easily felt under light pressure, the topline is flat, there is no crest on the neck and the quarters are rounded rather than creased. Native ponies should sit slightly leaner, at around 2.5 to 3, because they are far more prone to laminitis.

What is the difference between the 1 to 9 and 0 to 5 horse body condition scores?

They are two independent systems. The 0 to 5 fat scoring scale was published by Carroll and Huntington in 1988 and is standard in Britain and Ireland, with 3 as the target. The Henneke 1 to 9 scale was published at Texas A&M in 1983, is used in most research and throughout North America, and has 5 as the target. Roughly, fat score 3 corresponds to Henneke 5, but there is no formally validated conversion, so always record which scale you used.

How do I body condition score my horse correctly?

Stand the horse square on level ground and assess six areas with a flat hand rather than by eye: the neck crest, the withers, behind the shoulder, the ribs, the loin and the tail head. Score each area, note the lowest and highest rather than only the average, and record the result with the date and a weight tape measurement. Repeat every two weeks in spring and autumn and every four weeks otherwise. Coat length, particularly on an unclipped native in winter, will deceive you completely if you rely on looking.

What is a Cresty Neck Score and why does it matter?

The Cresty Neck Score is a separate 0 to 5 scale that assesses fat on the crest of the neck specifically, published by Carter and colleagues in 2009. It matters because fat deposited on the crest is more closely associated with insulin dysregulation, and therefore laminitis risk, than overall body fat is. A horse can hold an acceptable body condition score and still carry a hard, immobile crest. A score of 3 or above is a reasonable prompt to discuss testing for equine metabolic syndrome with your vet.

How often should I body condition score my horse?

Every two weeks through spring and autumn, when weight changes fastest, and every four weeks through more settled summer and winter conditions. Horses with PPID, EMS or a history of laminitis should be scored fortnightly all year. Record the score alongside a weight tape reading and the Cresty Neck Score. The trend across six weeks tells you far more than any individual reading does.

How quickly can a horse safely lose weight?

Around 0.5 to 1% of bodyweight per week, which is about 2.5 to 5 kg for a 500 kg horse. Faster loss risks hyperlipaemia, which is a serious metabolic condition that ponies, miniature horses and donkeys are especially susceptible to. Weight loss in horses is measured in months rather than weeks, and a programme that shows clear movement over six weeks is working properly even if it feels slow.

Body condition scoring is a husbandry skill rather than a diagnostic test, but it is the foundation that feeding, weight management and welfare decisions are built on. If the score is moving in the wrong direction faster than expected, the answer is not automatically more feed or less feed. It is a conversation with your vet.