Supplements, with the exception of prenatal vitamins or other specific medical conditions, have ZERO data supporting their use to promote health. In fact, in most large studies they hasten death. Listen to your grandmother and EAT your greens. Kale or cucumbers or apples don't come in pill forms.
Quality of diet imho is mostly
Micronutrients:Macronutrients
The higher this ratio the better.
Ones macros are in check finding the foods that deliver these with the highest ratio of micronutrients is the best you can do. Brown rice, broccoli and steak beats white rice, lettuce and chicken at the same macros because of a higher micronutrient density.
Just my undereducated 2 cents
I dont think any supplements are required for health then.
Not that I think you actually meant "all supplements", I'd just clarify I would argue that protein, creatine, and vitamin d have the potential to promote health with vitamin d being the most tenuous.
I wouldn't disagree with this, in principle
By the term micronutrients, I presumed, perhaps incorrectly, that the OP meant vitamins, minerals, and all the plant compounds we've just now begun to grasp like carotenoids, xanthophylls, flavonoids, organosulfurs, or even salicin which is a precursor to aspirin. People don't realize that the large majority of drugs are natural based compounds. So Hippocrates wasn't far off by saying let your food be your medicine.