Pretty much everyone agrees that fish is healthy.
This is particularly true of fatty fish, like salmon, which is loaded with omega-3 fatty acids and various other nutrients (22).
All the processed junk foods in the diet are the biggest reason the world is fatter and sicker than ever before.
They are also low in fiber, protein and micronutrients (empty calories), but high in unhealthy ingredients like added sugar and refined grains.
Despite being high in fat, nuts are incredibly nutritious and healthy.
They are loaded with magnesium, vitamin E, fiber and various other nutrients (9).
Additionally, about 10-15% of the calories in nuts aren't even absorbed into the body, and some evidence suggests that they can boost metabolism (13).
Sugary drinks are the most fattening things you can put into your body.
This is because liquid sugar calories don't get registered by the brain in the same way as calories from solid foods (1).