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A sudden increase in blood glucose during a keto diet can damage the walls of the blood vessels. Researchers warn that a day of cheating could negate the positive effects of the popular diet high in fats and carbohydrates on health.
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Those on a keto diet should think twice before having a cheat day. Results from a new study show that eating a plate of fries or a large bottle of soda in the popular diet high in fats and carbohydrates can damage blood vessels.
The ketogenic diet
The ketogenic diet, or keto, consists of eating foods high in fat, moderate in protein and very low in carbohydrates. This causes the body in a state of ketosis when it burns fat instead of glucose.
Many have touted the benefits of keto for weight loss and disease management.
Jonathan Little, of the Okanagan Campus of the University of British Columbia, said the diet was very effective at losing weight because once the body was in ketosis and had no more glucose , its default fuel, body chemistry changed and began to aggressively burn fat stores.
It also reverses the symptoms of diseases such as type 2 diabetes.
Sudden spike in glucose levels can damage blood vessels
Little and his colleagues wanted to know what's going on in the body once a dose of glucose is reintroduced during the keto treatment.
They recruited nine participants who consumed a 75-gram glucose drink after a week of high fat and high carbohydrate diets, 70% fat, 20% protein and 10% carbohydrate, which is similar to keto diet.
The researchers found biomarkers in the blood suggesting that the walls of the blood vessels were damaged by the sudden onset of blood sugar.
"Even though it was healthy young men, when we examined the health of their blood vessels after drinking the glucose drink, the results seemed to come from a person with a health condition." Cardiovascular mediocre, "said Little. "It was a bit alarming."
Little says that the potential culprit of this damage is the body's metabolic response to an excess of blood sugar that causes death and death of blood vessel cells.
Cheat Day can cancel the positive effects of Keto
The researchers acknowledged that more work was needed to confirm the results, but the study should at least caution those who follow a keto diet on cheating days.
The results suggest that people could negate the positive effects of the diet with a sudden increase in glucose intake.
"In conclusion, a week of low-carbohydrate and high-fat diet resulting in a relative alteration of glucose homeostasis in healthy young adults may predispose the endothelium to injury-induced damage. 39, hyperglycemia, "wrote the researchers in their study.
The results were published in the journal nutrients February 26th.
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