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Your body can synthesize most of the 22 amino acids that you need to make protein, with the exception of nine essential amino acids (histadine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine) that must come from your food. Fortunately, all unrefined foods have varying amounts of protein with varying amino acid profiles, including leafy green vegetables, tubers, grains, legumes, and nuts. All the essential and nonessential amino acids are present in these foods in amounts that meet or exceed your needs.

In 1914, studies on rats suggested that they grew best when fed a combination of plant foods whose amino acid patterns resembled that of animal protein. That makes sense, as all baby mammals, rats and humans included, grow best when fed the perfect food for baby mammals: their mother's milk. The term "complete protein" was coined to describe a protein in which all eight or nine essential amino acids are present in the same proportion that they occur in animals. "Incomplete protein" described the varying amino acid patterns in plants. It's a misleading term, because it suggest that humans (and other animals, one would assume) can't get enough essential amino acids to make protein from plants.

Fortunately, the theory that plant proteins are somehow "incomplete" and therefore inadequate has been disproved. All unrefined foods have varying amounts of protein with varying amino acid profiles, including leafy green vegetables, tubers, grains, legumes, and nuts. All the essential and nonessential amino acids are present in any single one of these foods in amounts that meet or exceed your needs, even if you are an endurance athlete or body builder.

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10y ago
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10y ago

All 9 essential amino acids, those amino acids humans need but cannot make in their bodies, much as we need vitamin C but cannot make it ourselves (as can, for example, guinea pigs: no scurvy for them). Monocots (basically, grass seeds: corn, barley, oat, rye, rice) combined with dicots (for example, beans) are complementary proteins: combined, all 9 of the essential amino acids are present.

Soybeans and quinoa (seeds of a species of goosefoot) are each complete proteins in themselves. Meats, fish, eggs, and dairy products are all complete proteins.

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8y ago

Nearly all unrefined foods are sources of complete protein.

Your body can synthesize most of the 22 amino acids that you need to make protein, with the exception of nine essential amino acids (histadine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine) that must come from your food. Fortunately, all unrefined foods have varying amounts of protein with varying amino acid profiles, including leafy green vegetables, tubers, grains, legumes, and nuts. All the essential and nonessential amino acids are present in these foods in amounts that meet or exceed your needs.

In 1914, studies on rats suggested that they grew best when fed a combination of plant foods whose amino acid patterns resembled that of animal protein. That makes sense, as all baby mammals, rats and humans included, grow best when fed the perfect food for baby mammals: their mother's milk. The term "complete protein" was coined to describe a protein in which all eight or nine essential amino acids are present in the same proportion that they occur in animals. "Incomplete protein" described the varying amino acid patterns in plants. It's a misleading term, because it suggest that humans (and other animals, one would assume) can't get enough essential amino acids to make protein from plants.

Fortunately, the theory that plant proteins are somehow "incomplete" and therefore inadequate has been disproven. All unrefined foods have varying amounts of protein with varying amino acid profiles, including leafy green vegetables, tubers, grains, legumes, and nuts. All the essential and nonessential amino acids are present in any single one of these foods in amounts that meet or exceed your needs, even if you are an endurance athlete or body builder.
eggs, milk, yogurt, meat, and fish
foods derived from animals and including eggs white, meat, poultry, fish, and milk

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14y ago

Nine essential amino acids that the body cannot manufacture.

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13y ago

meat egg fish poultry cheese and milk contain complete protein

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12y ago

something we don't have to worry about (:

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