FarminaVet Life feline - Gastrointestinal feline

The fiber left after sugar is extracted from sugar beets. Nearly all the sugar is gone; what remains is a mix of fibers that bacteria in the gut can ferment, producing fatty acids that feed the cells lining the colon. It helps firm stools and is one of the better-studied fibers in dog food. Its reputation as a filler is undeserved, though it does add little else beyond fiber.

The husk of a seed, the same fiber sold for people as Metamucil, added for its soluble, gel-forming fiber. It absorbs water and firms loose stool while easing constipation, so it appears in digestive, hairball and some weight-control foods. It is safe, and in large amounts it needs plenty of water to work well. It usually shows up in foods designed around stool quality.

A potassium source and an electrolyte. Potassium keeps muscles and nerves working, including the heart, and cats lose more of it than dogs do. It also stands in for part of the salt in foods that are formulated lower in sodium. A routine additive with no allergy or safety concern at food levels.

A root added for its inulin, a fiber that gut bacteria ferment. A prebiotic feeds the beneficial bacteria in the gut, and the pet gets the benefit second-hand. Studies in dogs show modest changes in gut bacteria and stool quality at the levels used in food. It is safe, and in large amounts can loosen stools, so it appears near the bottom of the list.

Sodium and chloride, both essential, plus a palatability boost. Pets need less than people, and the minimum is set in the nutrient profiles the food is formulated to. Salt high on the list of a treat is a flavor choice; salt near the end of a complete food is nutrition. Ask your vet before choosing a low-sodium food for heart or kidney disease rather than reading labels alone.

Purified plant fiber, usually from wood pulp, added as an insoluble fiber. It bulks stool, dilutes calories in weight-control foods and helps move hair through a cat's gut, which is why it is common in hairball formulas. It passes through undigested and supplies fiber only. The wood origin sounds alarming, but the product is the same purified cellulose used in human foods.

A phosphate salt added to supply phosphorus, balance calcium, or keep wet food's texture. Phosphorus is essential for bones and energy metabolism. It is one of the ingredients a vet will care about in a pet with kidney disease, where added phosphates add to the phosphorus load and restriction is a core part of management. For a healthy pet at label levels it is routine.

A calcium source, also used as a firming agent in wet foods. Calcium is needed for bones and teeth and must be balanced against phosphorus, which is why every complete food adds a measured calcium source. Calcium sulfate is a safe, well-absorbed form. It is one of several interchangeable ways to hit the required calcium level.

Essential for vision, skin and immune function. Cats cannot convert the plant form (beta-carotene) into vitamin A the way dogs can, so cat food must carry the preformed vitamin. It is fat-soluble and stored in the liver, so very high doses over time are harmful, which is why the amount is regulated. Normal on any complete food.

Dogs and cats cannot make useful amounts of vitamin D from sunlight, so it has to be in the food. It governs calcium and bone health. It is also one of the few vitamins where too much is dangerous: excess vitamin D has caused pet food recalls. The amount is regulated and the presence of D3 on a label is expected. What matters is that the maker gets the dose right, which is a quality-control question, not an ingredient question.

A fat-soluble antioxidant that protects cells and the fats in the food itself. It is in nearly every complete food, both as a nutrient and, under the name mixed tocopherols, as the natural preservative that keeps fat from going rancid. Deficiency is rare in pets eating a complete diet. Nothing to worry about on a label, and a sign the maker is preserving with vitamin E rather than synthetic chemicals.

A heat-stable form of vitamin C. Dogs and cats make their own vitamin C, so it is not an essential nutrient for them. It is added as an antioxidant and, some argue, to support joints and immunity. Harmless at food levels and not a reason to choose or avoid a food.

Vitamin B3. Dogs can make some from the amino acid tryptophan; cats cannot make enough and must get it from food, which is one of many reasons cat food and dog food are not interchangeable. Water-soluble and safe at food levels. Expected on every complete food label.

Vitamin B5 in its stable added form (the d- prefix just names the active version). It is needed to turn fats and carbohydrates into energy. Widely available in meats and grains, topped up to guarantee the level. Safe, expected, and irrelevant to allergies.

Vitamin B2, used to turn food into energy. Present in meat and dairy but partly lost in cooking, so manufacturers top it up. Water-soluble and safe at the levels used in food. Its presence tells you the food was formulated to a complete nutrient profile, not that anything unusual is going on.

Vitamin B6 in its stable, added form. It is central to protein metabolism, and cats need proportionally more of it than dogs because their diet runs so high in protein. Water-soluble and safe at food levels. A normal line on any complete food.

Vitamin B1, essential for nerves and energy metabolism, and the vitamin most often behind cat food recalls. It is destroyed by heat and by some preservatives, so canned foods in particular must add it back. Cats are especially sensitive to running short. Its presence is expected; its absence from a cooked food would be a red flag.

A B vitamin tied to skin and coat quality and to fat and protein metabolism. Gut bacteria make some; food supplies the rest. Raw egg white contains a protein that binds biotin, which is the reason raw-egg diets can cause a deficiency. Safe, expected, and not an allergen.

Vitamin B9, needed for cell division and healthy blood. Standard fortification in complete foods for dogs and cats. Water-soluble, no toxicity concern at food levels. Its main relevance to a shopper is none: it is there because the recipe was balanced properly.

Needed for nerve function and making red blood cells. It occurs naturally only in animal tissue, so it is added to almost every food to guarantee the level. Water-soluble, so excess passes out in urine. Cats and dogs with chronic gut disease can run low even on a good diet, which is a vet conversation rather than a food choice.

A B-vitamin relative added to nearly every complete food because animals need more than the base ingredients supply. It supports liver function and cell membranes. Seeing it on a label is normal and reassuring rather than a concern.

A plant pigment that dogs convert to vitamin A and that also acts as an antioxidant. Cats cannot make the conversion and need preformed vitamin A from animal sources, so for cats beta carotene is an antioxidant and a colorant only. It gives kibble an orange tint. It is safe at the amounts used and appears on labels mainly as a sign that the food was formulated to a full nutrient profile.

An iodine source. Iodine runs the thyroid, and pets cannot get enough without it being added. Calcium iodate and potassium iodide are the common forms and do the same job. Whether dietary iodine plays a role in the overactive thyroid common in older cats has been studied without a clear answer. A normal line on any complete food.

A calcium source, the same compound as limestone or chalk. Meat is low in calcium and high in phosphorus, so foods add calcium to keep the two in balance, which matters for bone and for large-breed puppies in particular. Routine and safe. Not an allergen.

An essential amino acid, added to top up protein quality and, in cat food especially, to acidify urine and discourage the struvite crystals behind some urinary problems. Routine and safe in a complete food. If your cat has a history of the other crystal type (oxalate), urine acidifiers are a vet conversation.

An amino acid cats cannot make in sufficient quantity and must eat, or they develop heart disease and blindness. It is in every complete cat food by law of nutrition, not by choice. Dogs make their own, but it is added to many dog foods as a precaution after a federal investigation into diet-associated heart disease in dogs. Its presence on a dog food label is a good sign, not a warning.

A compound made from amino acids that helps cells burn fat for energy. It is found naturally in meat, and it is added to many weight-control and senior foods on the reasoning that it supports lean body mass during weight loss. The evidence in dogs is modest and the amounts used are safe. Its presence usually signals a food designed for weight management.