Animal based foods such as - meat, poultry, fish, eggs and dairy foods.plant based foods such as- fruit, vegetable, grains, nuts, seeds, often lack one or more.
For healthy persons diet protein is important diet which is depend on their age and sex. protein is a part of every cell in the body. It helps the body to build and repair cells. protein is a major component of the skin , muscle, bone, organs, hair and nails.
Protein is made by amino acids of long chains which is 20 amino acids, amino acid is determines the structure and function of each protein such as alanine, glycine, lysine, etc.
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