Short answer: Russian Blues have big appetites. The Cat Fanciers’ Association says the breed is at risk of obesity without frequent, interactive exercise and advises owners to monitor food intake carefully. Feed measured meals rather than free-feeding, check body condition by feel because the dense coat can hide weight, and aim for a body condition score of 5 on the 9-point scale.
Russian Blues are frequently described by owners as unusually persistent when it comes to food — a food-motivated personality that, combined with a dense double coat that can visually mask body condition, makes this breed particularly prone to quiet, easy-to-miss weight gain if feeding isn’t managed deliberately.
Why Are Russian Blues So Prone to Overeating?
The CFA’s breed description notes that Russian Blues “have large appetites,” and owners and breeders widely report insistent begging, often continuing to act hungry regardless of how recently the cat has eaten. In practice it’s best managed as a strong food drive paired with an indoor lifestyle that doesn’t burn much energy.
That makes portion discipline more of an ongoing effort for this breed than for a naturally self-regulating cat. It also helps to know that begging isn’t always hunger. The AAHA Weight Management Guidelines advise vets to explain to owners that “food-seeking behavior is often attention-seeking behavior,” so play or attention can often stand in for a treat.
Why Is It Easy to Underestimate a Russian Blue’s Weight?
The CFA standard describes the coat as short, dense and plush, a double coat that “stands out from body due to density.” That full-bodied look can hide gradual weight gain from casual observation. Assessing weight by feel, checking for a palpable waist and rib coverage, is more reliable than judging by eye.
Owners of cats in general tend to miss it. In the Association for Pet Obesity Prevention’s 2022 survey, veterinary teams classed 61% of cats as overweight or obese, and 28% of owners whose cats were overweight still considered their cat’s body condition normal.
What Does a Healthy Russian Blue Weight Look Like?
The CFA describes Russian Blues as medium-sized, with males rarely exceeding 10 pounds and females ranging from about 5 to 8 pounds. Frame size varies, though, so vets rely on the 9-point body condition score rather than a target number. On the WSAVA cat body condition chart, 5 is ideal:
| Score | What you feel and see |
|---|---|
| 4 (slightly under ideal) | Ribs felt with minimal fat covering; noticeable waist behind the ribs; slight abdominal tuck |
| 5 (ideal) | Well-proportioned; ribs felt with slight fat covering; waist seen behind the ribs but not pronounced; minimal belly fat pad |
| 6 (over ideal) | Ribs felt with slight excess fat; waist and belly fat pad present but not obvious; no abdominal tuck |
| 7 (over ideal) | Ribs not easily felt through moderate fat; waist not easily seen; moderate belly fat pad |
| 8–9 (obese) | Ribs not felt under heavy fat; no waist; rounded abdomen with a prominent fat pad and fat over the lower back |
WSAVA notes a score of 6 may be acceptable in some cats, especially older ones. Ask your vet to score your cat at each visit so you have a baseline to compare against at home.
Why Does Extra Weight Matter for This Breed?
Diabetes is the main breed-specific reason. A study of insured cats in Sweden by Öhlund and colleagues found the Russian Blue was one of four breeds at increased risk of diabetes, alongside the Burmese, Norwegian Forest Cat and Abyssinian. Weight compounds that risk: the Cornell Feline Health Center reports that overweight cats were four and a half times more likely to develop diabetes than cats at optimal weight, and obese cats were twice as likely to die in middle age (6 to 12 years).
How Much Should a Russian Blue Eat?
There isn’t a breed-specific portion. Cornell points out that feeding instructions on labels are based on the needs of the average cat, so a less active indoor cat may need less than the bag suggests. As a starting point, WSAVA’s chart of calorie needs for healthy adult cats suggests roughly 225–250 kcal a day for a 4 kg (8.8 lb) cat in ideal condition, with the lower figure based on WSAVA’s formula for cats prone to weight gain. Treat that as a starting point to adjust against body condition, not a rule.
Two things make the calorie count accurate: weigh dry food on a kitchen scale rather than using a scoop, and count treats. AAHA advises keeping treats to no more than 10% of daily calories. When comparing foods, the calorie content per cup or can on the label is the number that matters; our guide to reading pet food labels shows where to find it.
How Should You Manage Feeding for a Persistently Begging Cat?
- Use scheduled, measured meals rather than free-feeding, which is much harder to control with a persistently food-motivated cat
- Resist responding to begging with extra food — consistent boundaries matter more for this breed than for less food-driven cats
- Assess body condition by feel regularly, since the coat can hide early weight gain from casual observation
- Use puzzle feeders or slow-feed bowls to extend mealtime satisfaction without increasing actual calorie intake
- Offer play instead of food when your cat pesters you; the CFA specifically recommends frequent, interactive exercise for this breed
- Consider a timed automatic feeder if your cat learns to wake you for breakfast, so the cue for food is the feeder, not you
What If Your Russian Blue Is Already Overweight?
See your vet before cutting food. Cats should lose weight slowly, and AAHA’s guidelines put the target at 0.5–2% of body weight per week. Sudden, severe restriction can trigger hepatic lipidosis (fatty liver), a life-threatening condition, and AAHA advises never letting a cat go longer than 24 hours without eating. Our step-by-step guide to helping an overweight indoor cat lose weight safely covers how a vet-guided plan works, and our explainer on how to judge cat food brands helps if you’re switching foods.
This article is for informational purposes only and does not replace guidance from your veterinarian.
Sources
- Cat Fanciers’ Association — Russian Blue
- WSAVA — Cat Body Condition Score chart, June 2025
- WSAVA — Calorie Needs for Healthy Adult Cats, July 2020
- AAHA — 2014 AAHA Weight Management Guidelines for Dogs and Cats, 2014
- Association for Pet Obesity Prevention — 2022 Pet Obesity Survey Results
- Öhlund M, et al. — Feline diabetes mellitus – the Swedish situation (Acta Veterinaria Scandinavica), 2015
- Cornell Feline Health Center — How often should you feed your cat?
