Instead of a strict meal plan, give this lifestyle a try. The Mediterranean diet has to be one of the healthiest diets in the world. It's a way of eating that emphasizes enjoying whole foods and regular physical activity. Here, we give you a blueprint to follow the Mediterranean diet - whether you want to make small changes or overhaul your entire way of eating.

The ketogenic diet, or keto diet for short, is a low-carb, high-fat diet that offers many health benefits.

Over 20 studies show that this type of diet can help you lose weight and improve your health. Ketogenic diets may even have benefits against diseases such as diabetes, cancer, epilepsy, and Alzheimer's disease. Here is a detailed beginner's guide to the keto diet.

There are several versions of the ketogenic diet, including:

• Standard ketogenic diet (SKD): This is a very low-carb, moderate-protein and high-fat diet. It typically contains 75 percent fat, 20 percent protein and only five percent carbs.
• Cyclical ketogenic diet (CKD): This diet involves periods of higher-carb refeeds, such as five ketogenic days followed by two high-carb days.
• Targeted ketogenic diet (TKD): This diet allows you to add carbs around workouts.
• High-protein ketogenic diet: This is similar to a standard ketogenic diet, but includes more protein. The ratio is often 60 percent fat, 35 percent protein and 5 percent carbs.