Yes. He recommended daily intermittent fasting (16:8) for most people, and occasionally longer 24-hour fasts for severe metabolic resistance.
Suárez dedicates an entire chapter to how timed fasting can reset metabolic processes. Aggressive Foods: frank suarez metabolismo ultra poderoso pdf archive link
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The book became a #1 bestseller on Amazon en Español and spawned a massive online community. Even years after his death, his family continues to sell the book legally via and Amazon.