Monounsaturated fat is the headline fat of the Mediterranean diet — the kind that dominates olive oil, avocados and most nuts. Where saturated fat tends to push LDL cholesterol up, swapping it for monounsaturated fat is one of the most consistent dietary moves for a healthier blood-lipid profile, helping to keep HDL (“good”) cholesterol up while bringing the harmful fractions down. It is liquid at room temperature and firms in the fridge — the visible signature of a heart-friendly fat.
What is Monounsaturated Fat?
Monounsaturated Fat is a heart-healthy fat that plays a critical role in building flexible cell membranes and supplying slow-burning energy while supporting a healthier blood-lipid profile. While many general diets overlook it, maintaining optimal levels of Monounsaturated Fat is frequently tracked by people working to optimize their HDL Cholesterol.
Top Foods High in Monounsaturated Fat
A data-driven breakdown of the foods with the highest concentration of Monounsaturated Fat per 100 g.
| Food | Monounsaturated Fat |
|---|---|
| Extra Virgin Olive Oil | 69.2 g |
| Pecans | 39.28 g |
| Peanut Butter | 30.71 g |
| Sesame Seeds | 18.76 g |
| Dark Chocolate (70–85%) | 12.78 g |
| Walnuts | 9.63 g |
| Cheddar Cheese | 8.43 g |
| Parmesan | 7.52 g |
| Mozzarella | 6.57 g |
| Flaxseed | 5.94 g |
| Mackerel | 5.46 g |
| Salmon (Atlantic) | 5.01 g |
How Monounsaturated Fat Impacts HDL Cholesterol
Research links diets rich in Monounsaturated Fat to changes in HDL Cholesterol. Optimizing intake of these foods can support healthy HDL Cholesterol levels via replacing saturated fat in the diet, which helps maintain HDL while lowering LDL and overall cardiovascular risk.
Written by the Nutrition Encyclopedia team · medically reviewed by Dr. Sunaina Tariq, MBBS
Last updated 22 June 2026
How we source & verify data · Medical disclaimer
Nutrition values are approximations compiled from public food-composition databases (USDA FoodData Central) and are provided for educational purposes only — not medical advice.
Explore by health goal
See the foods that support these goals: