Final answer:
About 95% of the lipids in foods and the human body are triglycerides, which consist of three fatty acid chains attached to a glycerol molecule. Triglycerides are the most common form of fats found in the diet and the body, providing a major source of energy.
Step-by-step explanation:
About 95% of the lipids/fats in foods and the human body are triglycerides. Triglycerides are a type of lipid that is made up of three fatty acid chains attached to a glycerol backbone. These are the most prevalent form of fat found both in our diets and stored in our bodies, serving as a major source of energy. Other types of lipids include phospholipids, sterols, and cholesterol, but these constitute a smaller percentage of the total lipids. While triglycerides can be either saturated or unsaturated, depending on the presence of carbon-carbon double bonds in their fatty acid chains, the majority of lipids as a whole in the food we consume and in our bodies are triglycerides.