Mostly fad diets such as the Sacred Heart diet and the cabbage soup diets have been debunked. These are extreme diets that are in no way healthy or maintainable. The detox diets have also been know to not last.
There are specific diets for weight loss according to blood type, but like many other diets, none have been conclusively proven to work. There is no magic bullet for weight loss.
One of the most famous diets currently on the market is the Dukan diet. This diet has been tested by many people, and hase been proven for many people to loose weight.
Yes, the Badlands Guardian has not been debunked as a natural formation.
Yes, the alleged Buenos Aires miracle has been debunked.
The concept of "healthy at every size" has not been debunked. It promotes the idea that health is not determined by weight alone and that people of all sizes can prioritize their health through balanced nutrition, physical activity, and self-care.
As of now, Spiral Dynamics has not been debunked by any credible sources.
Yes, the story of the Ourang Medan has been debunked by Snopes.
Yes, it is true that the claim about mosquito drone technology has been debunked by Snopes.
No, the concept of the heat death of the universe has not been debunked by recent scientific discoveries.
It is important to note that any diet can work on some people, because they will change their eating and exercising habits in general as they attempt to lose weight through the diet. Weight Watchers and Jenny Craig diets have been shown (though not necessarily "proven") to help some lose weight.
The concept of the brain in a vat has not been debunked, as it is still a philosophical thought experiment used to explore questions about reality and perception.
None; as in Zero.