In a well-fed human eating a Western diet, the richest source of stored chemical energy in the body is

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Adipose tissue primarily stores triglycerides, which are broken down into fatty acids and glycerol to provide energy during times of need. In a well-fed human on a Western diet, there is typically an excess of calories which are stored as adipose tissue. Therefore, fat in adipose tissue is the richest source of stored chemical energy in the body. Glucose in the blood can provide energy quickly, but it is not stored in large amounts in the body. Protein in muscle cells may be broken down and used for energy if necessary, but it is not the primary source of stored energy. Glycogen in muscle cells can also be used for energy, but it is not present in large quantities like adipose tissue. Calcium phosphate in bone does not serve as an energy source.

In a Well-Fed Human Eating a Western Diet, the Richest