Philip Elliott
I wanted to follow up.
Fruit an Nuts are a good thing in moderation. Much better than sugar snacks.
Keeping in mind the Glycimic conversion rate, grapes and bananas are great for energy, though if not used the insulin kicks in and the sugars (carbohydrates) turn into triglycerides and stored as body fats. Not much good there unless you burn through the equivalent of 30 miles.
Keto concept is eliminate Carbs, use protein to fuel your body thereby forcing you body to use the stored fats for energy.
As a long distance runner using stored body fats happen about mile 20.
Then horrible insulin kick as the body fat is covered back into fuel.
"The wall" is then handled by endomophines. None of that is good in my experience.
So I learned that cutting out carbohydrates is the smart thing. That includes fruit and ice cream, which is insanely difficult to manage to a concept of a "treat".
Oddly, dark chocolate is good (milk chocolate is not such so).
Oh, fruit and nuts or popcorn only diets are not good. Just ask Steve Jobs or my daughter, they are examples of extreme diets.