The best diet in my opinion is the McDougall diet. Best for health and energy.
It’s a starch based vegan diet and around 80-10-10 carbs protein fats.
I try to follow this diet as I see it as ideal healthwise, but I don’t follow it so strictly that I reject gifted food that doesn’t qualify.
Proponents
John McDougall: https://www.youtube.com/@themcdougallprogram
Jeff Nelson: https://www.youtube.com/@vegsource
Peter Rogers MD: https://www.youtube.com/@PeterRogersMD