← Science

Critic Response

The objection

“Sardine fasting is just another fad diet — it'll fade like keto, paleo, juice cleanses, and every other internet trend.”

Our headline response

The protocol's mechanistic foundation is the protein-sparing modified fast (PSMF), a 1970s clinical-medicine intervention with 50 years of peer-reviewed literature behind it. The 'sardine' part is the food vehicle; the underlying biology is well-established.

The headline above is our short, defensible answer — substantive on its own. The full rebuttal below — the data tables, the per-citation reasoning, the places where the critic has a real point and where the data clearly disagrees — is published to Inner Circle members.