Why Fat Isn't the Enemy Anymore: What We've Learned About Healthy Fats

Two Greek yogurt containers, showing both full-fat and non-fat varieties.

For decades, many of us were taught that fat was the enemy. We stocked our refrigerators with fat-free yogurt, low-fat cookies, reduced-fat salad dressings, and anything else labeled "light." The assumption was simple: less fat meant healthier.

Today, we know nutrition is much more nuanced than that.

One of the biggest shifts in nutrition science has been our understanding that not all fats are created equal. While excessive intake of highly processed fats may negatively impact health, naturally occurring fats found in foods such as avocados, nuts, seeds, olive oil, salmon, eggs, and full-fat dairy can be an important part of a healthy diet.

Take Greek yogurt as an example.

Many people automatically reach for the nonfat version, assuming it is the healthier choice. While nonfat Greek yogurt can certainly fit into a healthy diet, full-fat Greek yogurt offers benefits that are often overlooked.

Fat plays many important roles in the body. It helps us absorb fat-soluble vitamins such as vitamins A, D, E, and K. It provides a source of energy, supports cell membranes, contributes to hormone production, and helps keep us feeling satisfied after meals.

That last point is particularly important.

When meals contain adequate protein and healthy fats, we tend to feel fuller longer. This can help reduce cravings, stabilize energy levels, and make it easier to avoid mindless snacking throughout the day. For women in perimenopause and menopause, this can be especially valuable as hormonal changes often impact appetite, blood sugar regulation, and body composition.

Another consideration is what happens when manufacturers remove fat from foods. Fat contributes flavor, texture, and creaminess. When it is removed, manufacturers often add ingredients such as thickeners, gums, stabilizers, artificial flavorings, or added sugars to improve taste and texture. While not all additives are harmful, many people are surprised to learn that a "fat-free" product isn't always the less processed option.

And what about gut health? The probiotic benefits of Greek yogurt come from the live cultures used during fermentation, not the fat content itself. However, choosing a plain 2% or full-fat Greek yogurt allows you to get the benefits of protein, probiotics, and healthy fats all in one food. The combination is often more satisfying and can help support a balanced, nourishing eating pattern.

Emerging research also suggests that the relationship between full-fat dairy and body weight may be more complex than previously believed. Some studies have found that full-fat dairy consumption is not associated with increased obesity risk and may even support satiety and appetite regulation in certain individuals.

Nutrition is highly individualized, and there is no one-size-fits-all approach. However, for many people, especially women in perimenopause and menopause, choosing a 2% or full-fat Greek yogurt can provide a more satisfying and less processed option than fat-free varieties.

The goal isn't to avoid fat—it's to focus on the quality and source of the fat. Healthy fats help support satiety, nutrient absorption, hormone production, and overall health.

The bottom line: fat is not the villain it was once made out to be. Instead of automatically reaching for the lowest-fat option, take a closer look at the ingredient list and consider the overall nutritional value of the food. In many cases, a simple, minimally processed 2% or full-fat yogurt may be the more nourishing choice.