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Lastly, scientific research shows that 80+% of subjects in a study were able to adhere to the diet over a six month period
which is quite high in research. [8]Safety: 2/5 StarsThe keto diet was rated poorly in the category of safety, due to the high fat content. One panelist stated the diet could be dangerous for some while another cautioned those with heart disease, kidney disease, and severe diabetes against adoption of the diet. Counter: It’s interesting to note that a
group of experts who rightfully admitted that a ketogenic diet can help with weight
loss also ranked it low on safety. Further, a recent meta analysis examined 12 studies utilizing a ketogenic diet and saw no adverse effects. [9] Well, if sustained weight loss for two years following the study is an adverse effect, then I think it’s one that most people would be willing to risk it for. Lastly, it’s even been published and shown to be safe in children with intractable epilepsy. [10]Moreover, the primary criticism (
from the experts) regarding safety lies in the high-fat content. We must keep in mind that the ketogenic diet relies heavily on healthy monounsaturated fats and omega-3 fatty acids. Those fats have been shown, time and again, to improve cholesterol and decrease mortality risk from cardiovascular disease. [11]The majority of fat sources found in the ketogenic diet stem from salmon, other fatty fish, nuts, seeds, olives, olive oil, and avocado.
2/5 StarsOne of the biggest criticisms of the keto diet is people claiming, “it’s unsustainable. ” In research, long-term is considered greater than one to two years. Experts stated there was lacking evidence that indicates sustained weight loss for long periods of time. The keto diet was given a below-average ranking for this category. Counter: There are several short-term (less than two years) studies showing weight loss in those who follow the keto diet. In research, it’s extremely difficult to do any long term, diet-controlled studies due to lack of compliance. Irrespective of the diet, you can imagine controlling subjects for several years is a difficult task for any researcher to do. That being said, there are several long-term studies showing a positive benefit for the ketogenic diet. One study found that 66 obese individuals with high cholesterol were able to lower their weight and cholesterol levels with a ketogenic diet over 56 weeks. [4] A meta analysis (which is an analysis of several published papers) found that “Individuals assigned to a ketogenic diet achieve a greater weight loss than those assigned to a low fat diet in the long term; hence, a ketogenic diet may be an alternative tool against obesity. ” [5] All of the studies analyzed were greater than 12 months in duration.