Scientists have proven that fasting is a healthy habit but for weight loss, I'm not sure. You can try the ketogenic diet though, it has become really famous nowadays, a friend of mine has tried it and he lost about 4 kilograms in just 10 days which is magnificent! I've also been adviced to try metabolic cooking, I still didn't but I've read this article about it, which was a little bit helpful actually, although I didn't try all of its content yet, I thought I should share it with you, it might be helpful.
Metabolic Cooking Full Review - healthkeepersclub.com