Simply put, lipids are fats. While fats were vilified a few decades ago, and many people avoided high-fat foods because they thought eating them would lead to weight gain, we now know better.
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Our bodies need fat to keep our organs healthy. Fats also store energy, so they become a reserve fuel source, per a May 2021 StatPearls report. Fats also help your body absorb and use vitamins A, D, E and K.
Some examples of lipids that are good for you include polyunsaturated fats and monounsaturated fats. These two types of unsaturated fats can help improve your blood cholesterol levels when eaten in moderation and used in place of saturated and trans fats, per the American Heart Association (AHA).
That brings us to saturated and trans fats: These contribute to higher blood cholesterol levels and are linked to an increased risk of heart disease, per the AHA. Saturated and trans fats are found in fast food, baked goods and fatty and processed red meats (like bacon).
You should eat healthy fats every day, but you also need carbohydrates and proteins. Diets that emphasize any one of those nutrients over the others should be considered with a grain of salt. When you see that a food contains fat, it doesn’t always mean you should seek a low-fat version.
The bottom line: Foods with lipids are not foods to avoid. But foods with lots of saturated fat, often called "bad fats," should be eaten sparingly. Look to this list of lipid foods to know what to add to your daily diet.
Avocados have a high ratio of unsaturated fat to saturated fat, per the USDA. They also have 50 percent of your daily recommended amount of fiber, which helps to lower your cholesterol.
Avocados are very nutritious, loaded with vitamin K, folate, vitamin C, potassium, vitamin B5 and vitamin B6. They have a lot of fat, but it's the healthy kind that will help you feel full.
2. Fatty Fish
The AHA recommends eating two servings of fatty fish — such as salmon, mackerel, herring, anchovies and sardines — per week.
3. Seeds and Nuts
Many seeds and nuts are good sources of lipids. Almonds, pecans, pistachios, macadamia nuts, walnuts, peanuts, flax seeds, chia seeds and pumpkin seeds are all high in unsaturated fats.
Walnuts are also a good source of omega-3s. Aim for unsalted or lightly salted nuts for a healthy snack. Limit them to a handful (about 1 ounce), and you'll give your body some good fats without too many calories. You can also add nuts to stir-fries and stews.
4. Plant-Based Oils
Oils are a valuable source of lipids and plant-based oils contain more good-for-you unsaturated fats, while animal-based fats are mostly made up of saturated fat.
- Olive oil
- Canola oil
- Avocado oil
- Corn oil
- Peanut oil
- Safflower oil
- Soybean oil
- Sunflower oil
Try stir-frying vegetables in a heart-healthy oil to get that fiber (from the veggies) and healthy lipids (from the oil) at the same time.
Eggs don't contain much saturated fat (1.6 grams or 8 percent of your daily value per large egg), but they do contain dietary cholesterol — and for years, people were advised to limit eating eggs for this reason.
6. Full-Fat Dairy
If you can tolerate dairy, full-fat yogurt and cheese are a great way to get several nutrients. Full-fat dairy is high in saturated fat, but it can be eaten in moderation as part of a healthy diet.
What's more, many yogurts contain probiotics, which are linked to better digestion, according to Harvard Health Publishing.
But note this: You're negating the benefits of yogurt if you choose one that's loaded with sugar. Stick to plain yogurt, and add your own fruit and natural sweeteners like honey. To add even more healthy fats, sprinkle nuts and seeds onto your yogurt.
Meat contains lipids in the form of both saturated and unsaturated fats, depending on the type and cut.
Red meats — aka beef, pork and lamb — have more saturated fat than poultry and fish, according to the AHA. For example, a 3-ounce serving of steak has 26 percent of your daily value of saturated fat while a 3-ounce serving of salmon has just 5 percent of your daily value, per the USDA.
But that doesn't mean meat can't be part of a healthy diet — simply choose lean cuts.
Lean cuts usually contain the words “round,” “loin” or “sirloin” on the package, per the AHA.
- American Journal of Clinical Nutrition: Red Blood Cell MUFAs and Risk of Coronary Artery Disease in the Physicians' Health Study
- Statpearls: "Biochemistry, Lipids"
- AHA: "Fish and Omega-3 Fatty Acids"
- Harvard Health Publishing: "Your complete guide to choosing a yogurt to meet your needs"
- USDA: Choose My Plate