For all its success stories, the The 3 Week Diet Review American Heart Foundation still does not approve of the zone diet. This is due to its high protein content and lack of essential nutrients which are vital to the human body. They are also concerned about the lack of information and research about long term effects of undertaking the zone diet for long periods of time or permanently. Many nutritional experts are also skeptical of the zone diet due to lack of scientific research or fact backing up the claims. Although the zone diet is a high protein diet, the developer of the diet later released a Soy Zone diet. This made the diet plan more suited to vegetarians, who were put off the regular zone diet by its high meat content. The Soy Protein diet simply uses a soy protein base for its meals rather than meat.
It is a common statistic that people who undertake fad diets gain their weight back again a short time later. Why is this so? Well the reason behind this fact is diets like the zone diet are, for the most part, unsustainable over long periods of time. Your body can not live without the carbohydrates that are being taken away from it during the zone diet. Your body will continue to crave carbs until you finally give in. And when you give in, because your body is not used to all these high calorie carbohydrates, they often cause you to put on more weight than before you began the diet! Apple Cider Vinegar. A popular weight loss remedy since the 1950s, the diet claims that drinking 3 teaspoons of apple cider vinegar before each meal will decrease appetite and cravings, thus causing weight loss automatically.