Biotin helps in the growth of nails, hair, and skin. Biotin can be consumed either in foods or in the form of supplements. Either way, you will need 30-40 micrograms per day to ensure healthy nails.
Vitamin B9 or folic acid is essential for cell growth. This means that it can help the growth of the nails as well. Folic acid can be found in foods like leafy greens, eggs, beets, and citrus fruits.
Vitamin A is vital for strengthening the tissues, bones, teeth, and nails. It is also a popular antioxidant. This ensures that the toxins that cause damage are expelled from the inside body. If you prefer vegan options, vitamin a can be found in foods like grapefruit, spinach, yams, and apples.