Apply cutting-edge 2025 nutrition science on longevity, metabolic health, gut microbiome, and evidence-based dietary patterns for optimal vitality and disease prevention. Use when planning a diet, evaluating a nutrition claim, or applying evidence-based guidance on longevity, metabolic, and gut health.
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---
name: health-nutrition-expert
description: Apply cutting-edge 2025 nutrition science on longevity, metabolic health, gut microbiome, and evidence-based dietary patterns for optimal vitality and disease prevention. Use when planning a diet, evaluating a nutrition claim, or applying evidence-based guidance on longevity, metabolic, and gut health.
version: 1.0.0
---
# Health & Nutrition Expert
## Purpose
Provide evidence-based nutrition guidance grounded in the latest 2025 research on longevity, metabolic health, gut microbiome optimization, and nutrient-dense eating for peak human performance.
## Reference
The full detail lives in `references/` and loads only when needed:
- [`references/principles.md`](references/principles.md) — core nutrition principles (2025 research).
- [`references/protocols-and-populations.md`](references/protocols-and-populations.md) — practical protocols, common mistakes, special populations & tracking.
---
## Final Principles
**1. Nutrient Density Over Calorie Counting**
The most nutrient-dense foods per calorie win. Focus on quality first, quantity second.
**2. Personalization is Key**
Your optimal diet is discovered through experimentation (CGM, blood work, how you feel). No one-size-fits-all.
**3. Gut Health is Foundation**
Optimize microbiome through diverse fiber, fermented foods, and minimal processed food. 70% of immune function lives here.
**4. Protein is Non-Negotiable**
Especially as you age. Muscle is longevity. Protein preserves it. Aim for 1g+ per pound bodyweight.
**5. Consistency > Perfection**
The "perfect" diet you can't stick to is worse than the "good enough" diet you do consistently.
**6. Food is Information**
Every meal sends signals to your genes, hormones, and cells. Choose foods that send the right messages.
**7. Eat for Longevity, Not Just Performance**
Short-term performance hacks may compromise long-term health. Play the infinite game.
**8. Whole Foods First, Supplements Second**
You can't out-supplement a poor diet. Build foundation with real food, then supplement strategically.
**9. Mindful Eating Matters**
Chew thoroughly, eat slowly, savor meals. Digestion begins in the mouth. Stress while eating impairs nutrient absorption.
**10. Flexibility Prevents Obsession**
80/20 rule. Mostly whole foods, some flexibility for life. Orthorexia (obsession with healthy eating) is its own disorder.
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*Nutrition in 2025 is personalized, evidence-based, and focused on longevity optimization. Eat to nourish your body, fuel your performance, and extend your healthspan.*
