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In addition to feeding your gut bacteria, it turns out there is a form of citrus fiber called modified citrus pectin (MCP) that has almost magical anti-aging powers. It’s good at removing lead, cadmium, arsenic, and thallium. In one study, about 15 grams of modified citrus pectin powder per day for five days caused the study subjects to pass significantly higher levels of metals through their urine. Specifically, the amount of arsenic leaving the body increased by 130 percent, cadmium levels increased by 150 percent, and lead levels increased by 560 percent.30
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Dave Asprey (Super Human: The Bulletproof Plan to Age Backward and Maybe Even Live Forever)