Lately I've been on a diet of vegetable fats and proteins, almost no carbs (only fiber). Lots of avocados and seeds (chia, flaxseed, sunflower, sesame) which have approximately 50% fat content 45% protein 5% fiber. I lost body fat while eating as much as I wanted of that, along with yoghurt, eggs, cheese and veggies, the only thing off the table is bread, although I eat some once in a while.
People eat too many carbs in their daily life and don't even notice and they carry lots of long term health risks.