Another victim of the war on fat, butter has recently experienced a comeback as the benefits of butter become more widely known. The omega-6 and omega-3 fatty acids found in butter help your brain function properly and improve skin health. More importantly, these two fatty acids are considered essential, meaning the body needs them but can’t produce them on its own; instead, they must be consumed from food sources. Butter is also rich in fat-soluble vitamins and trace minerals, including beneficial selenium, a powerful antioxidant. (9)
Today’s Basics topic is all about fat! We’ve covered other macronutrients here on the Nutrition Stripped blog such as carbohydrates, protein, and digestion, and now the list is growing! Out of all the macronutrients, people have the most misconceptions about by fat! Today I’m sharing a breakdown of food sources of healthy fats, the function of fat in the human body, how fats are digested, and how our bodies store fat. If I haven’t lost you yet, keep reading on to learn the basics of healthy fat from a dietitian’s point of view. Let’s jump in!
Salmon might not get as bad of a rap for being high in fat, but its health benefits are worth repeating. By adding this fish fillet into your diet just twice a week, you’ll get the full amount of heart-healthy omega-3 fatty acids recommended by the American Heart Association. Omega-3s reduce the risk of arrhythmia, decrease triglyceride levels, and can actually slightly lower blood pressure. When you’re at the fish counter, make sure to pick up the right kind—while pink salmon is the second best fish for nutrition and health benefits, farmed Atlantic salmon is one of the worst.
In Grain Brain Dr. David Perlmutter describes our ancestor’s diet as being 75% fat, 20% protein and 5% carbs compared to our current diet of 60% carbs, 20% protein and 20% fat. Dr. Perlmutter goes on to explain how the cornerstone of many of today’s health conditions, including Alzheimer’s, ADHD, depression, anxiety and chronic headaches are linked to inflammation in the body and brain triggered by carbs.
One medium avocado has approximately 23 grams of fat, but it is primarily monounsaturated fat. Plus, a medium avocado contains 40 percent of your daily fiber needs, is naturally sodium- and cholesterol-free, and is a good source of lutein, an antioxidant that may protect your vision. Try enjoying it in place of foods that are higher in less-healthy saturated fat—use 1/5 of a medium avocado to replace the mayo on your sandwich, the butter on your toast, or the sour cream on your baked potato. Keep in mind that they’re pretty high in calories, so you generally want to stick to no more than 1/4 an avocado at a time.
This little wonder food checks all the boxes. It’s an inexpensive food that’s packed with protein and a full amino acid profile. And contrary to decades of popular belief, eggs also don’t raise bad cholesterol levels. In fact, consuming eggs can actually lower cholesterol while improving heart health. (22) The choline found in eggs is also helpful at keeping our brains in tip-top shape. (23)
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Go nuts! Polyunsaturated fats in nuts activate genes that reduce fat storage and improve insulin metabolism. At about 13 grams per one-ounce serving, walnuts are one of the best dietary sources (they also have more omega-3 fatty acids than any other nut). A small Pennsylvania State study found that a diet rich in walnuts and walnut oil may help the body respond better to stress and can also help keep diastolic blood pressure levels down.
An easier way to get all the fatty goodness of nuts may be from a nut or seed butter. Try almond and cashew, or sunflower seed butter, for a plant-based dose of monounsaturated and polyunsaturated fats. All you need is 2 tablespoons—spread it on toast, or eat it with fresh apple slices. Choose all-natural nut butters with as few ingredients as possible.
But wait, bile isn’t the only thing added in here, our pancreas also adds pancreatic digestive juices called lipase to the duodenum which helps break down triglycerides into two fatty acids and a monoglyceride. After this step, though, the fat droplets don’t just disappear. Instead the fatty acids and monoglycerides are absorbed in the microvilli (remember these from Digestion, part I?) and reassembled into triglycerides.
Monounsaturated fats are typically liquid at room temperature but solidify if refrigerated. These heart-healthy fats are typically a good source of the antioxidant vitamin E, a nutrient often lacking in American diets. They can be found in olives; avocados; hazelnuts; almonds; Brazil nuts; cashews; sesame seeds; pumpkin seeds; and olive, canola, and peanut oils.
Just like when selecting healthy sources of fat to include in your diet over fried foods and processed junk, opting for nutrient-dense carbohydrates is key. Go for healthy, gluten-free grains like quinoa, amaranth, brown rice and oats. Include a good variety of fruits, vegetables and legumes in your diet. Limit your intake of heavily processed and refined carbs to help improve the quality of your diet.
When comparing saturated vs. unsaturated fat, it’s generally recommended that unsaturated fatty acids should make up the majority of your fat intake. One study in 2015 showed that replacing just 5 percent of calories from saturated fats with an equal amount from polyunsaturated or monounsaturated fatty acids resulted in a 25 percent and 15 percent reduced risk of heart disease, respectively. (6) However, both offer a unique set of benefits and can be included in moderation as part of a well-balanced and healthy diet.
Hi, and Thank you for a very interesting website. I read the newsletters with curiousity and I learn new things. I am a Norwegian woman who started with LCHF diet/ keto three months ago. My motivation was serious healthchallenges with IBS, which became increasingly difficult after an gut infection last summer. My gut is much better! Not “perfect”, but the difference from three months ago is huge. My energy level is also coming back to normal, and even better! I have a question about canola oil. I am confused. I thought it was healthy, and that the balance between omega 3 and 6 was good. Canola oil is a preferred oil, together with olive oil, coconut oil and butter, on dietdoctor.com and other lowcarb-websites and books. So I wonder, why is it in your opinion on the “not to eat” list? Is it something that happens with it during the process of production? Or? Kind Regards, Mona Sommer
However, many experts disagree with the report’s conclusions on a few fronts. First, the link is based on the reasoning that saturated fat raises total cholesterol levels, but many studies suggest the link between higher cholesterol numbers and heart disease risk has been overstated. And while LDL is often referred to as “bad” cholesterol, there are different types of LDL, and the total number may be less important than the composition of the actual particles. Small, dense particles are inflammatory and associated with heart disease risk, while larger particles are not.
Polyunsaturated fats are required for some of the normal body functions listed above, but the body can’t produce them so they must be obtained from foods. Omega 3 fatty acids are a type of polyunsaturated fat and can be found in cold-water high-fat fish like salmon, mackerel, and sardines, and in flaxseeds, chia seeds, walnuts, canola oil (again look for non-GMO or organic), and unhydrogenated soybean oil (also look for non-GMO or organic as most soy products in the US are GMO unless they specifically state non-GMO or organic.) Omega 3’s are also found in some greens, including romaine, spinach, and arugula. Note that the body only partially converts plant-based omega 3’s to DHA and EPA, which are found in cold-water fish
The overarching message is that cutting back on saturated fat can be good for health if people replace saturated fat with good fats, especially, polyunsaturated fats. (1, 15, 22) Eating good fats in place of saturated fat lowers the “bad” LDL cholesterol, and it improves the ratio of total cholesterol to “good” HDL cholesterol, lowering the risk of heart disease.
This blue-green alga, available in powders and supplements, is full of healthy omega-3s like EPA and DHA. Research shows that these forms of omega-3s are more active in the body than ALA at controlling inflammation and belly fat. Not only is spirulina a great source of heart-healthy fats, but it’s also super-rich in protein, a great source of probiotics, and may even be able to help flatten your belly during exercise.
Certain types of fat also possess anti-inflammatory properties, which can help protect against chronic disease and help improve health. Omega-3 fatty acids, for example, have been shown to relieve inflammation and reduce symptoms of autoimmune conditions like rheumatoid arthritis, psoriasis and Crohn’s disease. (35) Monounsaturated fatty acids, on the other hand, may help increase good HDL cholesterol, lower triglyceride levels and decrease the risk of heart disease. (36)
Best of all, adding coconut oil to your diet is easy. You can use it for cooking or baking or even try applying it directly to the skin. Beware that when cooking directly with coconut oil, the flavor can be a bit overpowering for some. If that’s the case, try using a bit less. It’s also important to note that, at room temperature, coconut oil is solid, so it’s not the best choice when you need a healthy fat in liquid form. Additionally, when choosing a coconut oil, extra virgin varieties are best, as refined or processed coconut oils can eliminate many of the health benefits.
Leading the charge of the healthy fat brigade are avocados. This wonder fruit is essentially Mother Nature’s butter. It’s rich, creamy, and—unlike butter—an acceptable food to eat all on its own. While you should still limit yourself to a quarter or half of an avocado per meal, you have no reason to fear its fats. Avocados pack in healthy monounsaturated fats that contain oleic acid, which can actually help quiet feelings of hunger, according to a Food Function study. They also give you two things butter doesn’t: protein and fiber.
Although for several decades the American Heart Association and other health organizations have advised people to reduce their saturated fat intake, studies have consistently failed to show a link between saturated fat and heart disease. Because of this, the role of natural saturated fats in a healthy diet is now being reconsidered. All in all, saturated fats appear to be neutral in their health effects.