Best Vitamin B1 (Thiamine)-Rich Foods for Dogs

Ranked by vitamin b1 (thiamine) content among foods safe for dogs in the Creature Feast catalog.

Peas per 100g cooked: ~0.26mg thiamine Peas are one of the best whole-food sources of thiamine for dogs. Serve cooked — frozen peas thawed make a convenient option.

Sunflower Seeds per 30g: ~0.4mg thiamine Sunflower seeds are rich in thiamine. Offer unsalted, shelled seeds ground or crushed as a food topper.

Mealworms per 100g cooked: ~0.05mg thiamine Lean ground beef provides thiamine alongside iron and zinc. Meat-based B vitamins are well absorbed by dogs.

Lentils per 100g cooked: ~0.17mg thiamine Lentils are a solid plant-based thiamine source with the added benefit of protein and fiber.

Brown rice per 100g cooked: ~0.10mg thiamine Brown rice retains its thiamine-rich bran layer, unlike white rice where much of the thiamine is removed during processing.

Salmon per 100g cooked: ~0.23mg thiamine Salmon provides thiamine in a bioavailable form. Always cook salmon before feeding to dogs — raw salmon can contain parasites.