6 Best Reasons You should Start Eating Good Fats!

A woman stood in the supermarket, reading the labels on two bottles of cooking oil.

One claimed to be "heart healthy." The other promised "zero cholesterol."

She picked one up, frowned, then quietly put it back on the shelf.

"I don't even know which one is actually good for me anymore," she said to herself.

If you've ever felt that way, you're not alone.

For years, many of us grew up believing that all fats were the enemy. We scraped the oil off our soup, avoided avocados because they looked "too fatty," and thought eating anything with fat meant gaining weight or harming our hearts.

But nutrition science has taught us something surprising.

The problem has never been fat itself. The real question is which fats are you eating?

Some fats increase your risk of heart disease and other health problems, while others nourish your brain, protect your heart, support healthy skin, and even help you maintain a healthy weight.

Understanding the difference could change the way you look at every meal you eat.

Introduction

How do you view fats and fatty foods? Unhealthy, isn't it? Fats are bad yet fats are good. A bit contradictory, right? Many dieters have quit the consumption of fats and fatty foods because they were poorly enlightened about what fats are and what they are not.

This confusion is more common than you would think. For decades, the word "fat" carried an almost sinful weight in nutrition conversations, blamed for weight gain, heart disease, and just about every health scare that made the news. So many people, in their genuine effort to eat healthy, ended up cutting fat entirely from their plates, not realizing that some fats are not the enemy at all, they are actually essential for the body to function properly.

The truth, once you dig into the research, is far more nuanced than "fat is bad." Some fats do deserve the caution they get, while others genuinely deserve a permanent seat at your table. Let's break this down properly, using both the original insight already laid out and fresh, verified research to back it up.

Table of Contents

1. What Are Fats
2. Bad Fats
3. Good Fats
4. 6 Reasons You Should Start Eating Good Fats
5. Good Fats vs Bad Fats at a Glance
6. Key Takeaways
7. Frequently Asked Questions
8. Conclusion
9. Sources

What Are Fats?

Fats are esters of glycerol and fatty acids, which is one of the six classes of food. Fats are grouped into liquid (oil) and solid (fats).

• They are utilized in the body for production of energy, this is the commonest importance of fats everyone knows about.
• In addition to this, satiety is brought about by fats in foods.
• Fats are grouped basically into bad fats and good fats!

Beyond energy production and satiety, fats also play quieter but equally important roles in the body. They help transport fat soluble vitamins such as vitamins A, D, E, and K around the body, they form part of the structure of every cell membrane, and they support hormone production. This is exactly why cutting fat out completely, rather than simply choosing the right kind, can quietly undermine several systems in the body at once.

Bad Fats

Bad fats are predominantly everywhere, in the kitchen and on the market shelves.

When medical practitioners ask one to stop consuming fatty foods, there are actually referring to these set of fats, bad fats!

Bad fats are not good for our health.

Types of bad fats

Saturated fats and trans fats

• Saturated fats

Saturated fats are usually solid in form and very stable.

Animal fats come under saturated fats. Other sources of saturated fats are full cream milk, butter, ice cream, fatty cuts of meat among others.

• Trans fats/hydrogenated fats

These are liquid fats which had undergone further processing.

Often, manufactured by the hydrogenation of oil (addition of hydrogen to the double bonds in oil thereby converting it to single bond, a very stable bond). By and large, solid fats are formed

Sources of trans fats are margarines, fried foods, grilled foods, and baked foods et cetera.

Health implications of eating bad fats

1. They are known for raising LDL cholesterol (low density lipoprotein), a bad cholesterol responsible for clogging arterial walls.
2. Bad fats are one of the major causes of cardiovascular diseases
3. This set of fats promote insulin resistance
4. And of course, they cause inflammation.

Research generally backs up these claims, though with some added nuance worth knowing. It is well established across multiple clinical studies that swapping saturated fat for polyunsaturated fat reliably lowers total and LDL cholesterol, which is the main reason health bodies like the World Health Organization recommend keeping saturated fat intake under 10 percent of daily calories.

On insulin resistance specifically, the picture is a little more layered. Some intervention studies, including the well known KANWU trial, found that replacing saturated fat with monounsaturated fat improved insulin sensitivity, and a large 2018 study published in Diabetes Care found that overfeeding participants with saturated fat increased liver fat and insulin resistance far more than overfeeding them with unsaturated fat or even sugar.

However, a more recent 2023 meta analysis of controlled trials found that short term substitution of saturated for unsaturated fat did not significantly change insulin sensitivity, showing that scientists are still refining exactly how much of an effect this swap has over different time frames. What remains consistently agreed upon, though, is that trans fats are the most harmful of all fat types, with research confirming their link to inflammation and worsened insulin sensitivity, particularly in people who already have insulin resistance or type 2 diabetes.

Good Fats

Most good fats are always in liquid form.

Good fats are what you're supposed to replace bad fats with because it is not healthy to completely stop the consumption of fats.

Types of good fats are Mono-unsturated fats and polyunsaturated fats

Monounsaturated fats

These fats are healthy and should be taken regularly. Sources of monounsaturated fats are avocado, cashew nut, olive oil, canola oil, peanuts/groundnuts and so on.

Learn the health benefits of peanuts/groundnuts here

Polyunsaturated fats

• Polyunsaturated fats are similar to monounsaturated fats, the only difference is in the number of double and triple bonds in them.
• Sources of polyunsaturated fats are walnuts, corn oil, flaxseed oil, safflower oil, soybeans oil, fish (mackerel, salmon, herring and tuna), oysters and chia seeds et cetera
• Have you heard of omega-3 and omega-6 fats? Polyunsaturated fats are rich in these two types of fatty acids.
• Polyunsaturated fats are mainly present in fish and nuts.
• Omega-3 fatty acids are grouped are grouped into docosahexanoic acids (DHA) and eicosapentanoic acids (EPA).
• Most good fats are always in liquid form.

One small but useful clarification worth adding here, there is technically a third omega 3 fatty acid called alpha linolenic acid, or ALA, which comes mainly from plant sources like flaxseed, walnuts, soybeans, and canola oil. The body converts a small amount of ALA into EPA and DHA, though not very efficiently, which is why fatty fish remains the most direct and reliable source of these two omega 3 fats.

6 Reasons You Should Start Eating Good Fats

For Proper Functioning of the Brain

Omega-3 fats play a vital role in the health of the brain, nerves and eye development in infants. Pregnant women are recommended to take more of this fats since the body cannot make it on it own. Therefore take lots of fish, corn oil, corn, soybean oil, flaxseed oil and other ones.

This is strongly supported by research. DHA in particular is recognized by health authorities as essential for fetal brain and eye development, and the Dietary Guidelines for Americans recommend that pregnant and breastfeeding women consume between 250 and 375 milligrams of combined EPA and DHA daily. Some research bodies suggest that adequate DHA levels before and during early pregnancy may also help lower the risk of preterm birth, which shows just how far reaching this single nutrient's benefits are for both mother and baby.

Immunity Booster

Omega-3 fats are good immune booster, they maintain healthy immune system and thus the body can fight against diseases. In addition, omega-6 fatty acids are good for maintaining healthy genes, enhance blood clotting and improve immune health.

Omega 3 fats are widely recognized for their anti inflammatory properties, which is closely tied to healthy immune function since chronic, low grade inflammation can quietly wear down the immune system over time. Omega 6 fats, while sometimes unfairly painted as purely inflammatory, are actually essential fats the body needs in the right balance alongside omega 3s for proper cell function, blood clotting, and gene regulation.

Good Heart Health

American Heart Association recommends the consumption of two serving of fish or 8 ounces of fish weekly. This is because Omega-3 fats in fish reduces the level and influence of LDL cholesterol which clogs arteries and eventually causes cardiovascular diseases.

This claim checks out closely against current American Heart Association guidance, which recommends eating at least two servings of fish, ideally fatty fish such as salmon, mackerel, herring, or sardines, each week, roughly matching the 8 ounce weekly total mentioned above. Multiple studies have linked this pattern of fish consumption to a meaningfully lower risk of cardiovascular disease and sudden cardiac death, largely through the anti inflammatory and triglyceride lowering effects of omega 3 fatty acids, alongside a favorable effect on the overall cholesterol profile when it replaces less healthy fats in the diet.

Reduction in Belly Fat

According to American Diabetes Association, consumption of monounsaturated and polyunsaturated fats will reduce the quantity and the rate at which fat cells are formed inside inside the tummy.

Also, incorporating goods fats in meals tend to raise satiety (feeling full after each meal). By such means, the rate at which one feels hungry is reduced.

Hence, the amount of calories consumed will decrease and they will not be much calories in form of fats to store inside the belly (liver, other organs and subcutaneous layer of the belly).

The mechanism described here lines up well with existing nutrition science. Because fat digests more slowly than carbohydrates, meals containing good fats tend to keep you feeling full for longer, which naturally supports lower overall calorie intake over the course of a day. Separately, controlled feeding studies, including the widely cited 2018 Diabetes Care study, found that when people were overfed the same number of extra calories, those getting the extra calories from saturated fat gained significantly more liver fat than those getting it from unsaturated fat, suggesting that fat type, not just fat quantity, genuinely affects how and where the body stores excess energy.

Skin Health

Do you want a supple and moisturized skin? Then opt for good fats like, fatty fish, avocado, walnuts and sunflower oil.

Omega-6 fats and mega-3 fat are good for grooming a springy skin. Omega-3 oil in fatty fish tend to reduce inflammation and sun burn which could result to diverse skin conditions.

Fatty fish are good sources of vitamin E, an antioxidant responsible for shielding the skin against the attacks of free radicals.

Do you know fish oil are excellent source of zinc? Without zinc the skin will be proned to lesions, inflammation and slow healing of wounds. Likewise, zinc is important for the formation of new skin cells.

Avocado is rich in vitamin E and vitamin C. These vitamins are effective in protecting the skin from oxidative damages of UV rays. In addition, these vitamins delays wrinkle formation on the skin.

Dermatology and nutrition research consistently support this connection between good fats and skin health. Omega 3 fatty acids have been shown to help calm skin inflammation, support the skin's moisture barrier, and even assist in wound healing and tissue repair. Avocado in particular is well documented for its monounsaturated fat content alongside vitamins C and E, both of which protect skin cells from oxidative stress and support collagen production, helping to slow the visible signs of aging. Zinc, found generously in oysters and other seafood, plays an important supporting role too, since a zinc deficiency is genuinely associated with slower wound healing and a higher tendency toward skin lesions and inflammation.

Reduces the Risk of Diabetes

Studies showed that substituting saturated fats with good fats will be very effective in reducing the occurrence of diabetes. Since saturated fats bring about insulin resistance which is the major challenge in type 2 diabetes. Consuming healthy fats therefore will improve the sensitivity of insulin receptor organs.

This is one of the more actively researched areas in fat science, and while the overall direction of evidence supports this claim, it is worth being transparent about the nuance. Several studies, including a comprehensive review in PLOS Medicine, found that replacing saturated fat or refined carbohydrates with polyunsaturated fat improved markers of blood sugar control such as HbA1c and insulin resistance measures. Large epidemiological studies have also linked higher polyunsaturated fat intake, particularly linoleic acid, with a lower risk of developing type 2 diabetes. That said, not every study agrees on the size of this effect, and a 2023 systematic review found the short term impact on insulin sensitivity was less clear cut than earlier research suggested. Taken together, the weight of current evidence still favors choosing unsaturated fats over saturated fats for long term metabolic health, even though scientists continue to refine exactly how strong that benefit is.

Good Fats vs Bad Fats at a Glance

Key Takeaways

Fats are essential nutrients, not the enemy, the real issue is the type of fat consumed rather than fat itself.

Bad fats, meaning saturated and trans fats, raise LDL cholesterol and are strongly linked to cardiovascular disease, with trans fats being the more harmful of the two.

Good fats, meaning monounsaturated and polyunsaturated fats, support brain development, immunity, heart health, weight management, skin health, and may lower diabetes risk.

The American Heart Association recommends at least two servings, roughly 8 ounces, of fish weekly for heart health benefits.

Omega 3 fats, especially DHA, are essential for fetal brain and eye development, making them particularly important during pregnancy.

Scientific evidence on fat and insulin sensitivity is strong in direction but still being refined, some studies show clear benefits from swapping saturated for unsaturated fat, while more recent reviews show the short term effect may be smaller than once believed.

Frequently Asked Questions

1. Are all fats bad for weight loss? No, good fats such as monounsaturated and polyunsaturated fats can actually support weight management by increasing satiety and reducing overall calorie intake.
   
   

2. What is the healthiest type of fat to cook with? Olive oil and canola oil, both rich in monounsaturated fat, are commonly recommended for everyday cooking due to their favorable effect on cholesterol.
   
   

3. How much fish should I eat per week for good fats? The American Heart Association recommends at least two servings of fish, roughly 8 ounces total, per week, prioritizing fatty fish like salmon, mackerel, or sardines.
   
   

4. Can eating good fats really improve my skin? Yes, omega 3 and monounsaturated fats support the skin's moisture barrier, reduce inflammation, and provide antioxidants like vitamin E that protect against UV damage and premature aging.
   
   

5. Is margarine a good fat or a bad fat? Margarine is generally considered a source of trans fat due to the hydrogenation process used to make it, and should be limited or avoided.
   
   

6. Do good fats really reduce belly fat? Good fats support satiety and have been shown in controlled studies to result in less liver and abdominal fat storage compared to the same number of calories from saturated fat.

7. Is it safe for pregnant women to eat fish for omega 3? Yes, in moderate amounts, though pregnant women are generally advised to choose low mercury fish like salmon and avoid high mercury species like shark or swordfish.

8. What is the difference between omega 3 and omega 6 fats? Both are essential polyunsaturated fats the body needs, omega 3s are more associated with reducing inflammation while omega 6s support cell function, blood clotting, and gene regulation, and a healthy diet includes a balance of both.

Conclusion

Fats have been unfairly misunderstood for far too long. The real conversation was never supposed to be fat versus no fat, it has always been about choosing the right kind of fat. Cutting back on saturated and trans fats while genuinely welcoming monounsaturated and polyunsaturated fats into your meals supports your brain, your heart, your immune system, your skin, and your long term metabolic health all at once. So the next time you reach for that avocado, that piece of salmon, or that drizzle of olive oil, know that you are not indulging, you are investing in your health.

Sources

• National Institutes of Health, Office of Dietary Supplements, Omega 3 Fatty Acids Fact Sheet (ods.od.nih.gov)
• American Heart Association, Fish and Omega 3 Fatty Acids (heart.org)
• Mayo Clinic, Omega 3 in Fish, How Eating Fish Helps Your Heart (mayoclinic.org)
• UC Davis Nutrition Department, Nutrition and Health Info Sheets, Omega 3 Fatty Acids (nutrition.ucdavis.edu)
• Diabetes Care, American Diabetes Association, Saturated Fat Is More Metabolically Harmful for the Human Liver Than Unsaturated Fat or Simple Sugars (diabetesjournals.org)
• PLOS Medicine, Effects of Saturated Fat, Polyunsaturated Fat, Monounsaturated Fat, and Carbohydrate on Glucose Insulin Homeostasis (journals.plos.org)
• American Journal of Clinical Nutrition, Impact of Saturated Compared With Unsaturated Dietary Fat on Insulin Sensitivity (ajcn.nutrition.org)
• SciTechnol, Skin Nutrition, From Antioxidants to Omega 3s (scitechnol.com)