Soft Baked Dog Biscuits With Real Peanut Butter Treats

Oats are commonly used in pet foods as a digestible carbohydrate and source of soluble fiber (beta‑glucans), plant protein, B vitamins and minerals, which can support healthy digestion and help moderate blood glucose and cholesterol. They are generally well tolerated by dogs and can be included sparingly for cats, but owners should avoid flavored or sweetened preparations (and ingredients like xylitol or raisins), be mindful of possible grain sensitivities or cross‑contamination with gluten, and prefer cooked oats for better digestibility and portion control due to caloric content.

Pea is a plant-based ingredient used in pet foods as a source of protein, soluble and insoluble fiber, and micronutrients (often included as whole peas, pea flour, or pea protein concentrate) to boost protein content and improve texture. While peas can provide digestible carbohydrates, fiber, and some plant protein useful especially for dogs, they are not a complete protein for obligate carnivores like cats and — when overused, particularly in concentrated forms or as a major component of grain‑free diets — have been scrutinized for a possible association with canine dilated cardiomyopathy and can contribute to nutrient imbalances or excess calories, so balanced formulation and compliance with AAFCO nutritional profiles are important.

Glycerol (glycerin) is used in pet foods primarily as a humectant and sweetening agent to retain moisture, improve texture and palatability, and serve as a solvent or carrier in wet foods, treats, and liquid supplements. It provides a modest source of metabolizable energy for dogs and cats, but in large amounts can cause gastrointestinal upset and may affect blood glucose, so products intended for diabetic pets or sensitive animals should be used with caution.

Barley is a cereal grain used in pet foods primarily as a digestible carbohydrate and source of dietary fiber (including soluble beta‑glucans), along with modest amounts of B vitamins and minerals. It can support healthy digestion, help moderate post‑meal blood sugar and aid weight management in dogs, but provides limited protein for obligate carnivores like cats, must be cooked/processed for good digestibility, and may be unsuitable for pets with grain sensitivities or calorie‑restricted diets.

Rice is a common carbohydrate source and binder in dog and cat foods, supplying readily digestible energy and often used in formulations for sensitive stomachs or hypoallergenic diets. White rice is gentle and easy to digest while brown rice provides more fiber and micronutrients, but rice is low in essential amino acids, has a relatively high glycemic index, and can accumulate trace arsenic, so it should not be relied on as a primary protein and portions should be considered for diabetic or weight‑management pets.