How Much Should I Feed My Adult Cat Each Day?

Scoop sizes are not standard. One brand's scoop may hold 40 g while another holds 60 g, and dry food ranges from roughly 300 to 400 kcal per cup depending on how dense the kibble is. Feeding by volume alone is one of the most common reasons indoor cats slowly drift into overweight.

Calories also let you compare wet and dry food honestly. A standard 85 g (3 oz) can of wet food usually supplies about 70 to 90 calories, so three cans is roughly a day's worth for an average adult cat. A third of a cup of dry food plus one can of wet food lands in a similar place. Once everything converts to the same unit, mixing textures stops feeling like guesswork.

Look for metabolizable energy, usually written as kcal ME, followed by per cup for dry food or per can for wet food. Many labels also state calories per 100 g, which is convenient because it works for whatever portion size you actually feed.

If only the per 100 g figure is given, multiply by the weight of the serving. A food listed at 90 kcal per 100 g means a 50 g serving is about 45 calories. Weigh the food on a kitchen scale for a couple of weeks: people are consistently poor at estimating portions, and small daily errors add up over a season.

Both textures can meet an adult cat's needs when the product is labelled complete and balanced for the life stage. The choice is usually practical: wet food adds water, which helps cats that drink little, while dry food is convenient and works well in a puzzle feeder.

When you feed both, work out the total calories first and then split them. A common pattern is one can of wet food in the morning and a measured portion of dry food in the evening, together landing in the 200 to 250 calorie range. Change foods over seven to ten days, mixing increasing amounts of the new food into the old, to avoid digestive upset.

Most adult cats do well on two or three measured meals a day. Free-feeding, where the bowl is topped up whenever it empties, suits some cats but makes a drop in appetite very hard to notice, and appetite is often the first sign of illness.

Scheduled meals also make it easier to spot begging, food guarding or unusually fast eating. If your cat bolts its food and then vomits, splitting the daily ration into three or four smaller meals often solves the problem without any other change.

Run your hands along the ribcage: you should feel the ribs easily under a thin layer of fat, without pressing. Looking down from above there should be a visible waist behind the ribs, and from the side the belly should tuck up slightly toward the hind legs.

If the ribs are hard to feel and there is no waist, reduce the daily portion by about 10 percent. If the ribs and spine feel sharp and the waist is very pronounced, increase by a similar amount. Reassess every two to three weeks, because real changes in body weight are slow.

Neutered cats generally need fewer calories than entire cats of the same size, which is why weight gain often shows up in the months after surgery. Middle-aged and senior cats are usually less active, though some older cats lose weight and need a more calorie-dense diet instead.

Pregnancy and nursing raise energy needs substantially, and growing kittens may eat two to three times as much as an adult of the same weight. Cold environments and heavy play increase requirements; a warm, quiet indoor life lowers them. Sudden changes are the ones to act on: rapid weight loss or a sharp change in appetite deserves a veterinary visit rather than a portion tweak.