That Is almost always the best advice, especially with your diet. Virtually everyone that I have ever known who adopted some weird philosophy that governed what they ate has had problems. There is so much fat and oil in almost everything that it is pretty restrictive if you try to cut out all fats. The same is true of trying to cut out all carbohydrates, and if you cut out all proteins you will eventually die. It is pretty hard get enough proteins in the types you need if you cut out meat, fish and dairy. I have know a lot of unhealthy vegans.
Of course the biggest fad right now is cutting out almost all carbohydrates and I have know a bunch of people who have had a lot of problems from that. Regardless of what people think now about what previous generations in our culture believed was healthy eating, they tended to make better choices than people do now.
I know that it is a sacrilege to those who believe in cutting out carbs, but the much maligned “food pyramid” at least ensured better diversity in peoples’ diets than all the faddish nonsense that people believe these days. If you want to increase your chances of getting sick and dying, there are not a lot of better ways long term than cutting out the nutrients and fuel that your body thrives on.
That old Pyramid will be back in vogue one day again. And youre right, its saner than most of todays fad diets.
You can get the nutrients you need on a Keto diet. Again, you can eat fruits and vegetables on Keto.
I eat a lot of avocados (yes, it’s a fruit), and strawberries (which are low-glycemic), and I eat plenty of power greens, brussels sprouts, cauliflower, and broccoli.
There is no essential carbohydrate, there are essential proteins and fats. You can get all the nutrients you need without having eat more than 20 grams of carbs a day.