If you need more science to verify that the ketogenic diet is safe and will not cause you to gain weight and have a heart attack, there is some really good research that substantiates this. Below this video is a link to a website that summarizes 23 different randomized controlled studies, the gold standard of scientific research.
I encourage you to check out these studies. They compare the effect of a low carb diet to the effect of what most traditional weight loss programs recommend, a low fat calorie restricted diet. Over and over the conclusions are that the low carb diet was better at the following:
• Lowering weight
• Lowering waist size
• Lowering total cholesterol
• Raising HDL (the good cholesterol)
• Lowering fasting blood sugar
• Lowering insulin levels
Clearly there is a lot of good science supporting the ketogenic diet.