Should I follow the feeding chart on the cat food pack exactly?

Use it as a starting point rather than an exact figure, since it is based on an average cat at a given weight and activity level. Weigh the food properly, then adjust gradually based on how your own cat's body condition responds over a couple of weeks.

Does a neutered cat need less food than the chart suggests?

Often yes, since neutering tends to reduce metabolic rate, meaning a neutered cat commonly needs somewhat less than the standard adult figure on a chart. This is worth discussing with your vet around the time of neutering.

How do I combine wet and dry food amounts using a feeding chart?

Work out roughly what proportion of your cat's calories come from each type rather than adding a full serving of both on top of one another, since combining full portions of each effectively doubles the intended daily intake.

How to use a cat feeding chart properly

The feeding chart on a cat food pack gives a daily amount based on an average cat of a given weight, not a precise figure for your specific cat. Use it as a starting point, weigh the food rather than guessing with a scoop, and adjust the amount over a couple of weeks based on how your own cat's body condition responds.

How to read the chart properly

Most charts give a daily total based on your cat's current weight and life stage, often assuming an indoor, moderately active adult cat, which will overfeed a less active cat and potentially underfeed one that is genuinely very active outdoors. Wet and dry food charts are calculated differently too, since wet food contains far more water by weight, so a chart for one cannot simply be applied to the other.

Weigh food on digital kitchen scales rather than using a scoop, since a scoop's actual weight varies considerably between different dry foods depending on how dense the kibble is — using the same scoop across different foods can give a genuinely different amount despite looking identical by volume.

Adjusting the amount for your own cat

Start at the chart's suggested amount for your cat's current weight, then check body condition after two to three weeks by feeling along the ribs and looking at the waist from above — ribs that are easy to feel under a light covering of fat, with a visible waist, is generally the target for most cats. If ribs are hard to feel, reduce the amount gradually; if they are very prominent with no covering, increase it slightly.

Neutering, age and activity level all genuinely change a cat's calorie needs, and a neutered cat in particular often needs less than the chart's standard adult figure, since neutering reduces metabolic rate. This is worth discussing with your vet, particularly around the time of neutering itself, rather than continuing on a pre-neutering amount indefinitely.

Common mistakes with cat feeding charts

Free-feeding, where dry food is left out and available all day, makes the chart's daily total very difficult to track accurately, since it becomes hard to know exactly how much has actually been eaten versus how much is simply sitting in the bowl. Splitting the daily total into two or more measured meals, or using a portion-controlled feeder, makes it far easier to know precisely how much your cat is getting.

Mixing wet and dry food without adjusting either amount downward is another common slip, since combining full portions of both effectively doubles the intended intake. If you feed a combination of wet and dry, work out the calorie split between the two rather than simply adding a full serving of each on top of the other.

Common questions

Should I follow the feeding chart on the cat food pack exactly?: Use it as a starting point rather than an exact figure, since it is based on an average cat at a given weight and activity level. Weigh the food properly, then adjust gradually based on how your own cat's body condition responds over a couple of weeks.
Does a neutered cat need less food than the chart suggests?: Often yes, since neutering tends to reduce metabolic rate, meaning a neutered cat commonly needs somewhat less than the standard adult figure on a chart. This is worth discussing with your vet around the time of neutering.
How do I combine wet and dry food amounts using a feeding chart?: Work out roughly what proportion of your cat's calories come from each type rather than adding a full serving of both on top of one another, since combining full portions of each effectively doubles the intended daily intake.
How can I tell if I'm feeding my cat the right amount?: Check body condition by feeling along the ribs and looking at the waist from above — ribs easily felt under a light covering of fat with a visible waist is generally healthy. Adjust the amount gradually if this does not match, and ask your vet if you are unsure.

Sources

Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.

Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.