Saturated Fat

What Is Saturated Fat?

Saturated fat is a type of dietary fat in which the fatty acid chains have no double bonds between carbon atoms — the carbon chain is fully "saturated" with hydrogen atoms. This structural property makes saturated fats solid at room temperature. Common examples include butter, lard, coconut oil, and the fat found in red meat and full-fat dairy products.

Saturated fatty acids vary in chain length, from short-chain (C4–C6) to very long-chain (C20+). The most common dietary saturated fatty acids are palmitic acid (C16:0) and stearic acid (C18:0).

Health Considerations

High intake of saturated fat — particularly palmitic and myristic acids — is associated with elevated LDL (low-density lipoprotein) cholesterol, which is a recognized risk factor for atherosclerosis and cardiovascular disease. However, the relationship is more nuanced than once thought:

• Stearic acid (found in dark chocolate and beef) does not raise LDL and is converted to oleic acid in the body
• The food matrix (e.g., full-fat dairy vs. processed meat) influences the overall health effect
• Replacing saturated fat with refined carbohydrates does not improve cardiovascular outcomes; replacing it with unsaturated fat does

Recommended Limits and Food Sources

Major health organizations recommend limiting saturated fat to less than 10% of total daily calorie intake. For a 2,000 kcal diet, this equals no more than approximately 22 g/day. The American Heart Association recommends a stricter limit of less than 6% (about 13 g/day) for those managing cardiovascular risk.

• Butter (1 tablespoon): ~7 g saturated fat
• Ground beef 80/20 (100 g cooked): ~8 g saturated fat
• Coconut oil (1 tablespoon): ~12 g saturated fat
• Cheddar cheese (28 g): ~6 g saturated fat