Leucine: It is an essential amino acid and is not synthesized. It is amino-isocaproic acid. This may be synthesized by the micro-organism from ketoisovaleric acid and acetyl CoA. Acetyl CoA is convertible to ketone bodies and thus the leucine is ketogenic amino acid. It gives energy in combination will isoleucine and valine. It regulates protein metabolism.

Sources of Leucine: It is found in plenty in bajra, jowar, wheat, Bengal gram, black gram, field bean, soyabean, drumstick leaves, spinach, colocasia, radish, sweet potato, bitter gourd, cauliflower, almond, gingelly seeds, pistachio, walnut, apple, beef, egg, milk, and cheese. The RDA for children is 42 mg, and for adults is 14 mg per kg. body weight.

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Amino acids are the building blocks of protein.  There are 10 dietary amino acids essential because the body cannot make them.  Another 10 are nonessential because the body can make them; however, some people have difficulty making the nonessential amino acids.  All the dietary amino acids are crucial for health.  There are many amino acid supplements that provide significant health benefits.

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what wil happen to people taking amino acids supplements without having regular workouts?