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Two supplements I like. One I don't.

Two supplements I like. One I don't.

Vitamin D made me rethink both dose and K2. Creatine disrupts my sleep. NR still has better biomarker data than outcome data.

Hillary Lin, MD

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Sep 3, 2026

Peptides get the hype. These amino acids get the results.

Peptides get the hype. These amino acids get the results.

The leucine paradox, the $20 GlyNAC stack, and why your protein shake math changes at 50.

Apr 8, 2026

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24 min read

Your Biological Age Test Might Be Lying to You

Your Biological Age Test Might Be Lying to You

Mar 23, 2026

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30 min read

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Two supplements I like. One I don't.

Two supplements I like. One I don't.

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Peptides won an FDA committee vote. I think that was the right call.

Peptides won an FDA committee vote. I think that was the right call.

A Pill That Lowers LDL Nearly 60%: Would I Switch?

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