One of the main appeals of the keto diet seems to be the rapid, initial weight loss people have experienced. This might be considered a win for some, but it generally gives a false impression of what to expect, because it may not be sustainable.
Within our muscles we store glycogen (essentially a form of carbohydrates) with water. So when we go on a low-carbohydrate diet, our bodies use up our glycogen reserves and simultaneously deplete the water stored alongside them.
As a result, you tend to lose a couple of kilos in water weight within the first few days on the keto diet. But, as soon as you start consuming carbohydrates again, those stores replenish and the weight you’ve lost often goes straight back on.
In fact, the only instance where true weight loss occurs on the keto diet is if there’s an overall reduction in the calories being consumed. Some people do find that fats are more filling than carbohydrates, so switching to keto means they naturally consume fewer calories.
But by and large, even if weight loss is your sole goal (and here are a few reasons why it shouldn’t be), following the keto diet may actually be one of the most difficult paths to success. Not to mention one that’s likely to throw up an assault course of health issues along the way.