One of the most common dilemmas cat owners face is, ‘How much food should I feed my cat?’ Knowing how much to feed your cat is crucial to keeping it healthy and happy. It does not necessarily depend on the portion size but also focuses on the total number of calories your cat gets daily.
In this blog, we will discuss in detail about factors that influence how much the cat should eat, how to calculate the right portion size, a portion chart, and signs of overfeeding. There is a thumb rule to determine the right amount of food for your cat. Let's start with the basics.
How to Calculate the Right Portion Size
In order to calculate the right portion size, veterinarians take into account weight, body condition, age, and activity level. This helps to calculate how many calories your cat requires per day. Generally, cats need around 25–35 calories per pound of body weight daily, but this can be adjusted depending on specific needs. Most cat food packaging refers to energy content in kcal (kilocalories). You'll see this under the ingredients or feeding instructions (e.g., 250 kcal/cup or 250 kcal/can). Here is a formula to calculate the same: Daily Calorie Formula: Body weight (in lbs) × 25 to 35 = kcal/day Example: A 10-pound cat needs 250–350 kcal per day. If the food provides 500 kcal per cup and your 10-pound cat needs 250 kcal/day, you’ll feed ½ cup per day. Split into two meals, that’s ¼ cup per meal to meet their daily calorie requirement. Less active or indoor cats fall on the lower end of the range, while more active or outdoor cats need more. Now lets discuss the next important aspect in determining the right amount of food for your cat.
Factors That Influence How Much Your Cat Should Eat
Feeding your cat the right amount relies on individual factors. Let's summarise the factors impacting your cat's daily caloric requirement:
Age
Kittens require substantial amounts of energy and nutrients to develop—typically between 300–500 calories/day. Kittens should develop by around 1 lb monthly.
- 0–4 months (1–5 lbs): 77.38 to 353.2 kcal/day
- 4 months to adulthood (5.5–10 lbs): 258.73 to 453.1 kcal/day
Adult & Senior Cats have lower needs:
- Approximately 20 calories/lb body weight/day (or 45 kcal/kg)
- Spayed/Neutered adult (10 lbs): ~348.1 kcal
- Intact adult (10 lbs): ~391.6 kcal
A neutered 10-lb cat might require between 217.57 - 348.1 kcal/day, based on age and activity. You can use a cat calorie calculator to receive a more personalized amount.
Note:
1 kcal = 1 calorie (as utilized in veterinary nutrition) Resting Energy = Calories required for normal bodily processes Maintenance Energy = Total daily caloric requirements
It is always required to feed according to life stage—kitten food is more calories than adult food. Feeding adult kitten food will result in overfeeding.
Size
Large breeds (e.g., Maine Coons) or large-framed cats require more food than small or small-framed breeds such as the Siamese.
Activity Level
Active cats expend more calories than inactive cats. Metabolisms also vary—some cats metabolise energy more quickly than others.
Indoor vs. Outdoor
Outdoor cats are often more energetic and need a greater number of calories than their indoor counterparts.
Body Condition
Overweight cats must receive fewer calories, particularly if less energetic. Being maintained at optimum body weight is key.
Health Status
There are several conditions that have effects on nutrient needs. Example: Hyperthyroidism, elevating basal metabolic rate and caloric needs, Kidney disease necessitating low protein high-quality foods.
Reproductive Status
- Pregnant/Nursing Cats require extra calories to fuel their bodies and kittens
- Spayed/Neutered Cats tend to require fewer calories due to decreased hormone-related metabolism.
Cat Feeding Chart by Age & Weight
Here’s a general guide to help you determine how much to feed your cat based on their age and weight. Use this chart to ensure your furry friend gets the right amount of food for a healthy lifestyle.
| Cat Weight | Spayed/Neutered | Intact | Healthy Cat, Prone to Obesity | In Need of Weight Loss |
|---|---|---|---|---|
| 5lbs | 125 kcal/day | 175 kcal/day | 100 kcal/day | 75 kcal/day |
| 8lbs | 200 kcal/day | 280 kcal/day | 160 kcal/day | 120 kcal/day |
| 10lbs | 250 kcal/day | 350 kcal/day | 200 kcal/day | 150 kcal/day |
| 12lbs | 300 kcal/day | 420 kcal/day | 240 kcal/day | 180 kcal/day |
| 15lbs | 375 kcal/day | 525 kcal/day | 300 kcal/day | 225 kcal/day |
| 18lbs | 450 kcal/day | 630 kcal/day | 360 kcal/day | 270 kcal/day |
| 20lbs | 500 kcal/day | 700 kcal/day | 400 kcal/day | 300 kcal/day |
Note: For an accurate feeding plan based on your cat’s medical and physical needs, it’s always best to consult your vet.
Signs You’re Overfeeding or Underfeeding Your Cat
It is essential to monitor your cat's diet so that they receive the proper amount of food. Some of the indications that may mean you're overfeeding or underfeeding your cat are listed below.
Signs of Overfeeding
- Weight Gain: Excess fat around the torso and inability to feel ribs
- Rounded Body: No visible waist when looking from the top
- Lethargy: Less interest in play or exercise
- Constipation: Overfeeding can interfere with digestion
- Health Problems: Raises risk of diabetes, joint issues, and other ailments.
Underfeeding Signs
- Weight Loss: Obvious thinness, particularly around ribs and face
- Visible Ribs: Easily visible or palpable with little or no pressure
- Excessive Hunger: Persistent begging or overeating when food is present
- Low Energy: Less playful or energetic than normal
- Dull Coat: Poor diet can result in dry, dull fur
- Weakened Immunity: Increased risk of infections and disease.
Special Considerations: Kittens, Seniors, and Medical Diets
The nutritional needs change based on age, health, and lifestyle. Whether you’re caring for a growing kitten, a senior cat, or managing a medical condition, understanding their specific dietary requirements is key to keeping them healthy and happy. Here is a detailed outline of the same:
Kittens: Kittens less than 4 months need smaller, more frequent meals, or free feeding, to maintain accelerated growth. From around 4 to 12 months, gradually change them to two meals daily, varying portions based on appetite and weight. Watch their body condition to prevent overfeeding. When changing to adult food, gradually switch by mixing small amounts of adult food with the kitten food over a period of days.
Senior Cats: Older cats can be maintained on smaller, more frequent, easy-to-digest meals. Their food must be high in quality protein and essential fatty acids to maintain aging muscles and joints, with low fat to avoid weight gain. Energy and joint health can be maintained with supplements such as antioxidants, B vitamins, and glucosamine. If kidney disease is a problem, your vet can suggest a low-phosphorus diet.
Medical Diets: Cats with medical conditions require targeted nutrition under veterinary supervision. Portion size needs to be measured accurately in order to provide the exact dietary demands. Special formulas exist for diseases such as kidney disease or diabetes. Frequent checks on weight, appetite, and overall reaction to the new diet are important for successful management.
Choosing the Best Dry and Wet Cat Food
When selecting the right diet for your cat, it's crucial to consider their age (kitten, adult, or senior), health condition (e.g., allergies, sensitive stomach, or dental), and lifestyle (active or indoor). These factors determine the right mix of nutrients, calories, and food type to maintain your cat as healthy and happy.
How Much Wet Food to Feed a Cat
Adult cats weighing between 3 to 5 kg typically need about 200–300g of wet food daily, which in most instances translates to 2–3 pouches (85g each). It's always best to divide this into two meals to assist in maintaining a healthy schedule and also in digestion.
How Much Dry Food to Feed a Cat
Adult cats weighing 3 to 5 kg typically require approximately 40–70g of dry food per day, depending upon the calorie level of the food. This may be fed in one or two meals, or made available free feed, as long as portions are strictly controlled to prevent overindulgence.
Some of The Best Cat Foods
Choosing the right cat food can make a huge difference in your cat's health and well-being and happiness. Here are some of the best cat foods listed by pet owners and vets.
Thrive Premium Dry Food for Cats
Thrive Premium Dry Food for Cats offers a grain-free, high-protein meal with high-quality, ethically sourced meat as the lead ingredient. It is formulated to closely mimic a cat's natural diet, giving healthy muscles, digestion, and overall health. With no artificial preservatives, colors, or fillers, Thrive dry food is ideal for sensitive or allergic cats. It also includes essential nutrients like taurine, omega fatty acids, and vitamins to give a healthy coat, strong immune system, and optimal health.
Encore Wet Cat Food
Encore Wet Cat Food is a top-shelf, natural cat food made with human-grade, premier ingredients and absolutely no grains or man-made additions. It has a high level of meat—typically over 70%—providing essential protein for lean muscle maintenance and overall health. Available in many recipes filled with real chunks of chicken, tuna, or salmon, it's ideal for finicky eaters and those that need an added dose of moisture in their diet. The simple, straightforward recipes are especially useful for cats with food sensitivities or allergies.
Go! Skin + Coat Care Chicken Recipe With Grains for Cats
Go! Skin + Coat Care Chicken Recipe With Grains cat food is created to meet the needs of cats that have sensitive skin and dietary needs with a balanced blend of whole grains, omega fatty acids, and high-quality chicken. This formula keeps skin and coat healthy and promotes digestion with added prebiotics and fiber. It's enriched with vitamins, minerals, and antioxidants for overall health and immunity. Easy to feed daily, it's a natural, tasty option for cats of any age.
Here are some other pet foods to choose from
- Felix As Good As It Looks Doubly Delicious Wet Cat Food - Ocean Recipes
- Encore Adult Wet Cat Food Tin - Mixed Multipack
- Encore Adult Wet Cat Food Pouches - Fish Selection in Broth
- Encore Adult Wet Cat Food - Fish Selection in Jelly
- The Innocent Cat Tuna & Crab Slices with Parsley
- Dreamies Cat Treats Mega Tub - Chicken
When to Consult a Vet on Feeding Your Cat?
Properly feeding your cat is a must for their long-term health, but it's not always easy to tell whether you're doing the right thing. A professional will provide you with customized advice based on your cat's age, breed, health problems, and lifestyle. Below are some circumstances when to see a vet:
Sudden Change in Appetite
When your cat suddenly eats much more or less than usual, it can be a sign of some underlying medical conditions such as dental pain, thyroid disorders, or gastrointestinal disorders. Always consult a vet if appetite change persists for more than a couple of days.
Confusion about Portions
Food labels feeding instructions may be misleading, especially with mixed feeding. If you do not know how to mix wet and dry food or change portions for weight maintenance, your vet can help create a customized feeding plan.
Medical Support for Weight Management
Whether your cat needs to lose a few pounds or gain a healthy weight, your veterinarian can guide you on the right type and amount of food, as well as monitor progress to achieve safe and gradual outcomes.
Conclusion
Giving your cat the correct portion of high-quality food is one of the easiest ways to promote their overall health, energy, and well-being. Dry, wet, or a mix of both, knowing your cat's needs and portion sizes is the key to staying at a healthy weight and avoiding future illness. If you're unsure, your vet is your best source for personalised advice. Click here and explore portion-perfect cat foods and feeding tools made exclusively for cat parents. Give your feline friend the nutrition they deserve, every single day.
Frequently Asked Questions
How much-wet food should I feed my cat per day?
A healthy adult cat generally requires around 4–5 ounces (115–140 grams) of wet food per day, though this can vary depending on individual factors. Your cat’s size, age, activity level, and whether they are pregnant or nursing all play a role in determining the right amount. For the most accurate guidance, it’s best to consult your veterinarian, who can provide tailored feeding recommendations based on your cat’s specific needs.
How many grams of dry food should a cat eat?
Dry food is more calorie-dense than wet food, meaning your cat requires much smaller portions. For example, the recommended amount of Purizon Adult Fish dry food for a cat weighing 2kg is only 20 to 40g, while a 5kg cat should be fed 60 to 80g per day.
Is it better to feed cats once or twice a day?
For most healthy adult cats, it’s typically recommended to feed them twice a day, although feeding once a day is also acceptable. Kittens, on the other hand, need more frequent feedings—ideally three times a day—until they reach around six months of age, at which point they can transition to twice-daily feedings. Senior cats should generally follow the same feeding routine unless a veterinarian advises a different schedule based on their health needs.
Can I mix wet and dry food for my cat?
Yes, mixing wet and dry cat food is typically fine and can even be beneficial. It offers variety, boosts hydration, and may assist with weight management. However, it’s crucial to monitor portion sizes to prevent overfeeding.
How do I know if I’m feeding my cat too much?
You may be overfeeding your cat if they are gaining weight, especially around the torso, and you can't easily feel their ribs due to excess fat. Additional signs include increased lethargy, reduced activity levels, and potential health issues such as diabetes or arthritis.
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