Immune Balance Allergy Support Soft Chews Supplement for Dogs

Phytosterols are plant-derived sterols (such as beta-sitosterol) sometimes included in pet foods or supplements as a functional ingredient to help reduce intestinal cholesterol absorption and support lipid management rather than as a primary nutrient. They may be helpful for managing high cholesterol in some dogs (evidence in cats is limited), but are not essential, can modestly affect absorption of fat‑soluble vitamins at high doses, and should be used under veterinary guidance—especially with concurrent medications or underlying health issues.

Beta-sitosterol is a plant-derived phytosterol commonly included in pet supplements and some functional diets for its nutraceutical actions—primarily as an anti-inflammatory agent and for supporting urinary/prostate health rather than as a nutrient source. It is not essential for dogs or cats and while small amounts may modestly influence cholesterol absorption and immune function, evidence in companion animals is limited; high doses can cause gastrointestinal upset or potentially affect absorption of fat‑soluble vitamins and interactions with medications, so veterinary guidance is recommended before use.

Brewer's yeast (deactivated Saccharomyces cerevisiae) is commonly used in dog and cat foods as a flavor enhancer and supplemental source of protein, B‑complex vitamins, trace minerals and immunomodulating components such as beta‑glucans. It can support skin, coat and general nutritional status, but may cause gastrointestinal upset or allergic reactions in yeast‑sensitive pets, is not a live probiotic, and should be used cautiously in animals prone to purine‑related issues or those receiving antifungal medications.

Calcium sulfate dihydrate (gypsum) is an inorganic mineral commonly used in pet foods as a supplemental source of calcium and as a processing aid or binder/anti‑caking agent. It helps contribute to calcium needs for bone and tooth health in dogs and cats, but is less soluble than some other calcium salts so manufacturers balance it with phosphorus and vitamin D and limit inclusion to avoid mineral imbalances or digestive upset at high intakes.

Flaxseed oil is used in pet foods and supplements as a concentrated fat source rich in omega‑3 alpha‑linolenic acid (ALA) and omega‑6 linoleic acid to support skin and coat condition and provide essential fatty acids. While it can improve coat quality and has modest anti‑inflammatory potential in dogs, cats convert ALA to the biologically active EPA/DHA poorly so fish or algal oils are preferred for long‑chain omega‑3s; flax oil is calorie‑dense, prone to oxidation (store refrigerated and use antioxidants), and may cause gastrointestinal upset in some animals, so dosing should follow a veterinarian’s guidance.