Explain What Good Nutrition Actually Looks Like for Someone Who Eats Normally

Nutrition content is written for people trying to optimise, lose weight, or perform athletically. Most people just want to know what good enough looks like for a normally active adult who is not trying to do anything special. This explains the five things with the strongest evidence, corrects the most overestimated interventions, and describes the eating pattern that captures most of the available benefit without significant effort.

I am not trying to lose weight, run a marathon, or follow a specific diet. I just want to understand what good nutrition actually looks like for a normally active adult.

My situation: {PERSONAL_CONTEXT} [age range, activity level, any relevant health context]

Explain:
1. The actual basics: the [four or five] things that have the strongest evidence for a normally active adult's health, ignoring trends and supplements
2. The things most commonly overestimated: the nutritional interventions people invest most effort in that have the weakest evidence for people who already eat reasonably well
3. The realistic trade-off: how much of the benefit comes from a few core behaviours versus everything else, expressed as an honest proportion
4. What 'good enough' looks like: a description of an eating pattern that captures most of the available benefit without requiring significant effort or sacrifice
5. The one question to ask before taking any nutrition advice: the single question that most efficiently filters credible nutrition guidance from noise