Healthy Fats You Actually Need

For many adults, the word fat still carries a negative reputation.

For decades, grocery store shelves filled with low-fat products, restaurant menus highlighted fat-free options, and health-conscious consumers learned to avoid fat whenever possible. Somewhere along the way, many people started to believe that eating fat automatically led to gaining fat.

The reality is much more complicated.

Today, nutrition experts understand that fat is not only necessary for good health—it plays a critical role in how our bodies function every day. Healthy fats help support our brains, hearts, hormones, cells, and even our ability to absorb certain vitamins.¹

The challenge is that many people still view all fats through the same lens. When we hear the word fat, we often think of greasy fast food or highly processed snacks. But the fats found in foods like salmon, avocados, nuts, and olive oil tell a very different story.

Understanding that difference can completely change the way you think about nutrition.

Why Your Body Needs Fat

Imagine trying to drive a car using only one type of fuel. Eventually, performance would suffer because the vehicle was never designed to operate that way. The human body works similarly. Protein, carbohydrates, and fats each serve important functions. Remove one entirely, and things begin to break down.

Fat provides a concentrated source of energy and serves as a building block for cell membranes throughout the body.² It also helps produce hormones that regulate everything from metabolism to reproduction.

Perhaps most importantly, certain vitamins simply cannot be absorbed without dietary fat. Vitamins A, D, E, and K are known as fat-soluble vitamins because they require fat for proper absorption.² Without enough healthy fat in the diet, the body struggles to use these nutrients effectively. In other words, fat isn’t optional. It’s essential.

The Problem With the “Low-Fat” Era

Many adults remember the low-fat craze of the 1980s and 1990s. Food manufacturers removed fat from products and promoted them as healthier choices. The problem was that removing fat often removed flavor and satisfaction as well. To compensate, many companies added sugar, refined carbohydrates, and other ingredients to improve taste.³

The result was a generation of consumers who believed they were making healthier choices while often eating foods that were highly processed and less satisfying. Think about how you feel after eating a handful of pretzels compared to a small serving of mixed nuts. The pretzels may provide quick energy, but many people find themselves hungry again shortly afterward. The nuts, on the other hand, tend to stick with them longer.

That’s because fat slows digestion and contributes to feelings of fullness and satisfaction.³ This doesn’t mean every high-fat food is healthy. It simply means that removing fat entirely isn’t the answer many people once believed it was.

Not All Fats Are Created Equal

One reason fat can be confusing is that multiple types exist. Some fats support health, while others should be limited. Unsaturated fats are generally considered the healthiest category. These include monounsaturated and polyunsaturated fats found in foods such as olive oil, avocados, nuts, seeds, and fatty fish.⁴ Research consistently associates these fats with improved heart health and other positive health outcomes.⁴

On the other hand, trans fats have been linked to increased cardiovascular risk and are largely being removed from the food supply.⁴ Saturated fat occupies a more complicated middle ground. Foods such as dairy products, red meat, and certain tropical oils contain saturated fat. While current research has become more nuanced than older recommendations, most experts still suggest moderation rather than making these foods the foundation of your diet.⁴

For most people, the simplest approach is focusing on adding more foods rich in unsaturated fats rather than obsessing over every gram of fat consumed.

Why Healthy Fats Help You Feel More Satisfied

Have you ever eaten a meal and felt hungry again an hour later? Many times, the issue isn’t that you didn’t eat enough food. It’s that the meal lacked balance. Healthy fats help create staying power.

Consider two breakfasts. One consists of dry cereal and juice. The other includes eggs, avocado, and fruit. While both meals contain calories, the second often leaves people feeling satisfied much longer because it contains protein, fiber, and healthy fat working together.

That satisfaction matters.

When meals feel more satisfying, people are often less likely to spend the rest of the day chasing snacks or dealing with constant hunger.⁵ This isn’t about using fat as a magic solution. It’s about recognizing that satisfaction is an important part of healthy eating. A nutrition plan that leaves you feeling deprived rarely works for very long.

Some of the Best Sources of Healthy Fat

Fortunately, many healthy fats come packaged in foods that offer additional nutritional benefits. Fatty fish such as salmon, trout, sardines, and mackerel provide omega-3 fatty acids that support heart and brain health.¹

Nuts and seeds offer healthy fats along with protein, fiber, vitamins, and minerals. A small handful can be an easy addition to meals or snacks. Avocados provide monounsaturated fats along with fiber and potassium. Olive oil remains one of the most researched components of the Mediterranean eating pattern and is frequently associated with positive health outcomes.⁴

Even foods like natural peanut butter, almonds, walnuts, chia seeds, and flax seeds can contribute meaningful amounts of healthy fat to the diet. Notice something important: these foods aren’t “diet foods.” They’re simply real foods that have nourished people for generations.

The Fear of Fat May Be Holding Some People Back

Many adults trying to improve their nutrition still carry beliefs formed decades ago. They choose fat-free salad dressing, avoid egg yolks, skip nuts because they’re “too high in calories,” or feel guilty for adding avocado to a meal.

Yet those same individuals often struggle with constant hunger, cravings, or feeling unsatisfied after eating. Sometimes the answer isn’t eating less. Sometimes it’s eating more of the foods that help the body function properly. Healthy fats can make meals more enjoyable, improve satisfaction, and support important bodily functions all at the same time.¹⁻⁵

Nutrition doesn’t have to be about removing everything that tastes good. In many cases, it can be about adding foods that help you feel better and stay nourished longer.

Building a Better Relationship With Fat

Perhaps the biggest takeaway is that healthy fats deserve a seat at the table. Rather than viewing fat as something to fear, it can be helpful to think about the source. Is it coming from foods like fish, nuts, seeds, avocados, and olive oil? If so, it’s likely contributing far more than just calories.

The goal isn’t to load every meal with fat. The goal is to stop treating all fats as the enemy. When included as part of a balanced eating pattern, healthy fats can help support both physical health and everyday enjoyment of food. Healthy eating becomes much easier when you stop fighting nutrients your body actually needs.

At EAGLE Health & Wellness, we believe better nutrition starts with better understanding. Sometimes the healthiest change isn’t removing a food from your plate—it’s realizing there was never a reason to fear it in the first place.

References:

1. National Institutes of Health Office of Dietary Supplements. Omega-3 Fatty Acids Fact Sheet for Health Professionals. Updated March 2025.

2. MedlinePlus. Dietary Fats. U.S. National Library of Medicine. Updated 2025.

3. Harvard T.H. Chan School of Public Health. The Nutrition Source: Fats and Cholesterol. Accessed June 2026.

4. American Heart Association. Healthy Fats vs. Unhealthy Fats. Updated 2025.

5. Centers for Disease Control and Prevention. Healthy Eating for a Healthy Weight. Updated 2025.

Compiled and written by the staff at Eagle Health and Wellness, LLC.