Before you assume that by-products in kitten food are bad thing, here are some facts. In common usage, a by-product is something that is just that—a side product from the making of another product. By-products are not by definition poor quality. For instance, gingerbread cookies wouldn’t be the same without molasses, which is a by-product of sugar manufacture.
In relation to IAMS™ kitten foods, such as IAMS ProActive Health™ Kitten, by-products are generally parts of the animals that are not the muscle meat preferred by most American consumers. The term refers only to the anatomic parts included, not to the nutritional quality of the parts.
While many Americans may not be used to eating these animal parts themselves, it is important to realize that many of the items included in by-products (e.g., organ meats) may be higher in essential nutrients—amino acids, minerals, and vitamins—as well as more palatable to pets than the skeletal muscle meat.
In addition to nutritional benefits, inclusion of these ingredients in pet foods reduces waste and likely has environmental benefits as the livestock industry does not have to produce additional animals just to satisfy the needs for muscle meats to feed pets as well as people. Feeding these nutrient-rich, tasty parts to pets may prevent them from being wasted and allows the entire animal to be put to good use.
Much of the consumer confusion and discomfort surrounding by-products most likely stems from the marketing strategies of some pet food brands and perhaps from the ingredient name “by-product” itself.
It is important to keep in mind that most ingredients in pet foods can vary greatly in quality. In addition, quality cannot be assessed purely on the basis of the ingredient list. All by-products are not the same quality. Neither is all muscle meat. There are very high-quality by-products as well as poor-quality chicken and chicken meal (or beef or pork).
Purchasing food only from reputable manufacturers who are very selective about their suppliers, have full-time, qualified nutritionists, and perform analytical testing to ensure that every ingredient, as well as the finished product, meets their exact nutrient specifications, will help avoid problems due to poor-quality ingredients.
Compared to humans, your cat needs a high-fat, high-protein diet along with other important nutrients. Cats usually eat many small meals throughout the day, so they easily adopt a free choice feeding schedule to maintain their normal body weight. Dry foods, such as IAMS™ PROACTIVE HEALTH™ Healthy Adult with Chicken, are best suited for free choice feeding because they stay fresh for a longer period.

Here are few tips on how to feed a cat:
Wondering what do cats eat ? Cats need nutrients from animal-based protein sources. Providing the vitamins, minerals, proteins, and other components found in a portion of complete and balanced pet food can help your cat live a long and healthy life. It is important to avoid supplementing your cat's diet, as doing so may lead to a variety of health problems.
When selecting cat food, refer to a cat nutrition chart that offers the following nutrients:



Same time, we recommend you control the amount of food you feed your cat. Even if it is a weight loss-based cat food, the quantity should be checked properly.
The amount to feed your cat depends on its age, size, and activity level. Feeding guidelines that recommend the daily amount of food you may feed your cat are included on all IAMS packages. Start feeding your cat the mentioned amount and adjust according to its needs. Remember to divide the portion accordingly if you feed more than once a day. With that said now, take a look at this chart on how much to feed a cat:
| Weight of cat (kg) | G/day |
|---|---|
| 3 | 45 |
| 4 | 55 |
| 5 | 60 |
| 6 | 70 |
| 7 | 80 |
| 8 | 90 |
IAMS offers a high protein diet food for cats that are either underweight or overweight. The IAMS Indoor Weight and Hairball Care food is made with a formula that is suitable for cats who are either in need of increasing weight or decreasing it. The benefits of this cat diet plan are as follows: