11. Salmon
As far as seafood goes, salmon is the best choice for biotin. A 3-ounce (85-gram) cooked serving of salmon contains 5 micrograms of biotin.
Salmon is also packed with omega-3 fatty acids, which also happen to be great for people trying to make their hair healthier. Healthy fats like this could help prevent hair loss.
12. Tuna
Canned tuna isn’t just convenient, it’s also good for you. And it happens to be loaded with biotin. A 3-oz can (85 grams) of tuna packed in water contains 0.6 micrograms of biotin.
Canned tuna is also high in omega-3 fatty acids and is an excellent source of protein, vitamin D, selenium, and iodine.