Does keto really burn fat?

The one factor that leads to the most significant and consistent weight loss is a calorie deficit. In other words, when we consume fewer calories than we need to maintain our weight, we will lose weight. This means that your weight loss rate will usually increase as your total calorie consumption decreases. However, there are limits to how far you should take you should take your deficit. The human body is designed to prevent massive amounts of weight loss during times of starvation via mechanisms that make long-term fat loss much harder to achieve and maintain. Because of this, it is never a good idea to starve yourself for extended periods of time. Research indicates that calorie deficits above 30% are enough to stimulate some of these counterproductive mechanisms for long-term fat loss.

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