U is for Unique

People differ in genetics, medical history, medications, sleep, stress, culture, schedule, budget, and food access. Any program claiming to be right for everyone is claiming something impossible.

This cuts both ways. It means you cannot copy someone else’s plan and expect their result — and it means every past failure was partly a mismatch, not merely a lapse in character.

Your job is not to find the one correct diet. It is to run careful experiments on yourself, keep what demonstrably works for you, and discard what does not, regardless of who recommended it.