Biotin
Biotin is most concentrated in foods like liver, but it can also be found in egg yolks, dairy products, yeast, salmon, avocados, walnuts, and even cauliflower.
Iron
Your body absorbs iron found in animal or plant foods, such as beef, chicken, fish and eggs, dark green leafy vegetables, peanuts, seeds, beans, and other fortified foods .
Magnesium
Whole grains, specifically whole wheat, are a rich source of magnesium. Dark green leafy vegetables, as well as quinoa, almonds, cashews, peanuts, edamame, and black beans, are also good sources.
Vitamin C
While citrus fruits, such as oranges, strawberries, and kiwi, are believed to be the best sources of vitamin C, bell peppers, vegetables, and tomatoes are also very rich in this nutrient.
Other B vitamins
Folate can be found in dark green vegetables, citrus fruits, beans, peas, lentils, nuts, seeds, and avocados. On the other hand, B12 is mainly found in foods of animal origin, such as meat, poultry, fish, eggs and dairy, although it can be enriched in other foods and beverages.
