What to Know Before You Try Keto: Downsides


ORLANDO, Fla. (Ivanhoe Newswire) — You’ve probably heard of the keto diet … the popular eating plan that encourages you to consume high-protein foods and fats while steering clear of carbohydrates. It can lead to dramatic weight loss, but there are some things to consider before you jump on the next band wagon.

You name the diet and Gail Gedan has been on it.

“I remember a lollipop diet where you would eat a lollipop in between meals,” smiled Gail.

And Gail is not the only one.

“The number of people losing weight or stating that they have tried to lose weight over the past year is 50 percent,” shared Ellen Schur, MD, MS, Associate Professor of Medicine, UW Medicine.

One of the most popular diets is the keto. It’s an eating craze that has many Americans hooked. The high-fat, high-protein, low-carb keto diet might help you lose weight, but there could be drawbacks. For one, fewer fruits and veggies, you’ll likely miss out on vitamins, minerals, fiber, and other vital compounds. There’s also something called the “keto flu” that happens when you restrict carbs. This may cause fatigue, poor sleep, dizziness, and constipation. Many people report bad breath while on the diet due to the breakdown of certain acids. Another negative?  Experts don’t know the long-term effects of the diet.

Going keto could also impact athletic performance. In a recent study, people who followed the keto diet for four days performed worse on high-intensity exercises compared to those on a high-carb diet. In another experiment, Australian scientists tracked elite athletes on the keto diet and found they had increased signs of bone breakdown. Those on a high-carb diet didn’t see these changes.

The keto diet was first introduced in the 1920’s as a way to treat epilepsy. It somewhat fell out of popularity with the introduction of anti-seizure drugs but picked up steam in the last few years as a weight loss diet.

Contributors to this news report include: Julie Marks, Producer; and Roque Correa, Editor.


REPORT #2746

BACKGROUND: The Keto diet is a low-carb, high-fat diet similar to the Atkins diet. It involves reducing carbohydrate intake and replacing it with fat. This reduction in carbs puts your body into a metabolic state called ketosis. When this happens, your body becomes efficient at burning fat for energy. It also turns fat into ketones in the liver, which supply energy for the brain. Ketosis occurs in healthy people during fasting and strenuous exercise. In excess, blood ketones can produce a toxic level of acid in the blood, referred to as ketoacidosis. Ketoacidosis is a known and life-threatening complication of type 1 diabetes and has been described in some cases of healthy people eating a very low-carb diet. This diet has been shown to be effective in treating seizure disorders. Research is being done to see if the keto diet aids in managing other conditions including cancer and diabetes.

(Source: https://www.healthline.com/nutrition/ketogenic-diet-101#what-it-is and https://www.medicinenet.com/ketogenic_diet/article.htm)

KETO: PROS AND CONS: There are some benefits of going on a low-carb diet. After about one week, blood sugar stabilizes and insulin levels dip, which is actually a bonus for those struggling with diabetes. In the process of ketosis, the body produces ketone bodies that enter the spinal cord and brain, where they have several impacts, including dampening hunger. Another benefit is that people lose more weight and keep more off than people on lower-fat diets that allow more carbs. An area of concern is the high level of fat, which could potentially worsen cardiovascular health, and the stress it can place on the liver. The American Heart Association recently warned that coconut oil, which is a staple in the keto diet, is loaded with saturated fat and can raise bad cholesterol. Because the diet can lack fiber, constipation can be an issue. So can a lack of vitamins, minerals, and electrolytes, along with kidney stones. And, because the diet is so restrictive, it can be hard to stick with long-term.

(Source: https://www.webmd.com/diet/news/20180709/ketos-fans-boost-controversial-diets-profile)

NEW RESEARCH SAYS KETO DIET IN SMALL DOSES: In a Yale study published in Nature Metabolism, researchers found that the positive and negative effects of the keto diet both relate to immune cells called gamma delta T-cells, tissue-protective cells that lower diabetes risk and inflammation. When the body’s glucose level is reduced due to the diet’s low carbohydrate content, the body acts as if it is in a starvation state and begins burning fats instead of carbohydrates. This process in turn yields chemicals called ketone bodies as an alternative source of fuel. When the body burns ketone bodies, tissue-protective gamma delta T-cells expand throughout the body. But when the body is in this “starving-not-starving” mode, fat storage is also happening simultaneously with fat breakdown, the researchers found. When mice continue to eat the high-fat, low-carb diet beyond one week, they consume more fat than they can burn, and develop diabetes and obesity.

(Source: https://www.sciencedaily.com/releases/2020/01/200127134741.htm)

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