What is the primary form of lipid in the diet?

Question

BlackTom AI · Accepted Answer

To analyze the question, we start by identifying what constitutes the main lipid category in typical diets.
Option 1: triglycerides. This choice is correct because the vast majority of dietary fats are triglycerides, which consist of three fatty acid chains esterified to glycerol and serve as the body's primary energy reservoir.
Option 2: glycerols. While glycerol is a component of triglycerides and can be released during fat breakdown, it is not the primary form in which dietary lipids are consumed or stored; free glycerol itself is not the main dietary lipid.
Option 3: sterols. Sterols, including cholesterol, are present in the diet but only as a smaller fraction of total fat intake compared to triglycerides; they are not the main lipid form.
Option 4: phospholipids. Phospholipids are important as components of cell membranes and can be found in the diet, but they do not constitute the primary lipid form consumed; their relative abundance in dietary fats is much lower than triglycerides.
In summary, understanding the typical composition of dietary fats points to triglycerides as the predominant lipid form, with glycerol, sterols, and phospholipids playing smaller, specialized roles.

BIO 132-Introduction to Nutrition-931 Exam 4

What is the primary form of lipid in the diet?

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