If You Eat Too Much Peanut Butter, You're More Susceptible To This Nutrient Deficiency - Health Digest


Amino acids make up proteins that are used by the body. Imagine amino acids like ingredients in a recipe. Combining certain ingredients makes one food, whereas a combination of other ingredients makes another. Some of these amino acids combine to make hormones and neurotransmitters. Others will help build muscle tissue. Amino acids also provide energy, support your immune system, and help metabolize fat. The essential amino acids you need from food are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Peanut butter is still good for you because it has all of these essential amino acids, but it’s much lower in methionine. Methionine plays a role in detoxification, metabolism, and repair of soft tissues. You need this amino acid to help your body absorb zinc and selenium. You need 19 milligrams of methionine for each kilogram of body weight. That means someone weighing 150 pounds needs 1,295 milligrams of this amino acid. Two tablespoons of peanut butter provide 84 milligrams, which is just 6% of the recommended amount. Compare that with a Grade A large egg that has just about the same amount of protein but 210 milligrams of methionine. Peanut butter also has about half the lysine and threonine of an egg.


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