health-nutrition-expert SKILL.md skillA

health-nutrition-expert from frankxai/claude-skills-library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add frankxai/claude-skills-library/health-nutrition-expert@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
frankxai/claude-skills-library
Path
free-skills/health-nutrition-expert/SKILL.md
Versions recorded
4
Latest version
v1.0.0, committed Jun 8, 2026
First version recorded
Oct 31, 2025
Size
2,582 bytes
Repository stars
47
License
MIT

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.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# 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.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add frankxai/claude-skills-library/health-nutrition-expert@sha256:e5aa2e3080eb84b5

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_stosf7bwyigsdd2p.svg)](https://markdownregistry.com/a/art_stosf7bwyigsdd2p)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Oct 31, 2025 and Jun 8, 2026, about one every 73 days.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-06-08 5e17d21 2,582 BA view · diff
v1.0.02026-06-08 07e270e 26,969 BA view · diff
v1.0.02026-06-05 7e49dea 26,835 BA view · diff
v1.0.02025-10-31 a2fdac9 26,837 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2582 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

frankxai/claude-skills-library · 47 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_stosf7bwyigsdd2p
GET https://markdownregistry.com/api/v1/resolve?ref=frankxai/claude-skills-library/health-nutrition-expert
GET https://markdownregistry.com/api/v1/blob/e5aa2e3080eb84b52689857ae81671d2ac2533d544a0f9ebc90c91a21e3d9488

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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