Poor Brain Function
The brain is largely made up of fat. The brain requires a high amount of cholesterol as a source of energy, which is why some of the best brain foods have high levels of healthy fats.
Poor Vitamin Absorption
Eating a diet too low in fat can interfere with the absorption of the fat-soluble vitamins A, D, E and K.
Increased Cancer Risk
Colon, breast, and prostate cancers have all been correlated with low intakes of essential fatty acids. Research has shown that high intake of Omega-3s slows prostate tumor and cancer cell growth.
Compromised Heart Health
We have been led to believe cholesterol is bad for you, research continues to confirm that heart disease likely has much more do with inflammation — which is at the root of most diseases — than from high fat or cholesterol intake. Focus on eating an anti-inflammatory diet with health fats, much like the Mediterranean diet.
Hormone Imbalances (Including Sex Hormones Testosterone and Estrogen)
Eating enough fats is one of the most important things you can do to balance hormones naturally.
Weight Gain and Overeating
Research shows there is a relationship between fat intake, hormones and weight gain
Higher Risk of Insulin Resistance and Diabetes
Healthy fats is one of the keys to controlling insulin.
Higher Risk for Depression and Anxiety
People who consume a diet low in fats and especially low in cholesterol are at risk for depression and suicide. Fatty acids play an important role in higher brain functions that control moods.
Higher-fat, high-fiber diets are now correlated with a healthier gut environment, or microbiome. A diet with these nutrients supplies what is needed for the gut but also for the brain, both of which are very connected — also known as the brain/body connection.
Maes, Michael, et al. 26 April 1996. Fatty acid composition in major depression: decreased ω3 fractions in cholesteryl esters and increased C20:4ω6/C20:5ω3 ratio in cholesteryl esters and phospholipids . Journal of Affective Disorders. 38 (1): 35-46.
Fat 101. The American Heart Association. Fat. The American Heart Association(accessed September 15, 2009).