Proteins are one of the four different types of macromolecules, in addition to carbohydrates, lipids, or fats, and nucleic acids, such as DNA and RNA. Macromolecules are large molecules that perform specialized functions inside living organisms. The structural arrangement of a protein molecule will differ in accordance with its function. Meats, cheeses, and nuts tend to have a higher protein content than many plant-based sources. A vitamin is an organic compound and a vital nutrient that an organism requires in limited amounts. An organic chemical compound is called a vitamin when the organism cannot synthesize the compound in .The water soluble vitamins:
Vitamin B1 or Thiamin - come from whole grains, enriched grains; liver; nuts, and seeds.
Vitamin B2 or Riboflavin - comes from whole grains, enriched grains, and dairy products.
Vitamin B3 or Niacin - comes from meat, fish, poultry, and whole grains. Carbohydrates are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. Though often maligned in trendy diets, carbohydrates ? one of the basic food groups ? are important to a healthy life.