Can Fasting Help Prevent and Manage Chronic Disease?

December 21, 2017 , , , , ,

As mentioned in my article Fasting to Live Longer?, I will now talk to you about the role of fasting in weight loss and weight management, in some chronic illnesses and in cancer.

weight loss meal plansFor Weight Loss

According to studies done on intermittent fasting for weight loss, it is just as efficient as other strategies. Despite theories from certain studies pointing to other processes, it seems that the principal mechanism for weight loss, including in fasting, is calorie restriction.

In fact, the best strategy for weight loss and maintaining a healthy weight, is the one you are able to maintain for the long-term.

Against Chronic Illnesses

Cardiovascular disease

Few studies have evaluated the role of fasting on lipid profile (good and bad cholesterol, triglycerides, etc.) of those at risk of cardiovascular illnesses. In general, fasting seems to have an advantage compared to calorie restriction over a period of several days, by improving certain blood markers such as increasing “good” cholesterol (HDL) and reducing triglycerides (TG). Further studies are however necessary before we can recommend fasting to reduce the risk of cardiovascular illnesses.

Type 2 Diabetes

According to studies on patients living with diabetes, fasting has effects comparable to those obtained by a low-calorie die. Those effects are an improvement in glycated hemoglobin (hbA1c – value that evaluates glycaemia over several weeks) and weight loss. Once again, more studies are necessaries before we can recommend this approach.

Be careful: If you live with diabetes and want to fast, you must do it with your healthcare team to ensure adequate medication control. This is very important to prevent periods of hypoglycemia.

Against Cancer

In animal models, fasting seems to have an interesting effect on limiting the toxicity of cancer treatments. Fasting promotes, in health cells, a mechanism of protection that isn’t present in cancerous cells. This mechanism could make treatments more effective against the targeted cells, while sparing some of the healthy cells and reducing the secondary effects of the treatment.

Fasting isn’t recommended for some cancer patients, because of significant weight loss or weakened immune system. What’s more, the lack of data on humans and on different types of cancer prevents us, at least for the moment, to recommend fasting as a complementary measure to cancer treatments.

Note: Pregnant women or breastfeeding mothers, children and teenagers, as well as people suffering from renal and hepatic impairment or failure are advised not to fast. The same goes for people suffering from gout. The reasoning behind this is that, during a fast, uric acid is better reabsorbed by the body and this can therefore increase the risk and frequency of gout attacks.  

SOSCuisine: Meal Plans for Diabetes



Jef L'Ecuyer
Member of the Quebec College of Dietitians (ODNQ) and Dietitians of Canada,Jef graduated from McGill University in December 2014. Recently graduated and passionate about culinary arts, Jef poses a simple, effective and practical look at daily meal planning. With this in mind, she works in conjunction with the mission of SOSCuisine...

Leave a Reply

Your email address will not be published. Required fields are marked *

This website uses cookies to give the best user experience, monitor the site performance, offer social networks features, or display advertisements. By clicking "ACCEPT", you consent to the use of cookies in accordance to our privacy policy.