"4 Essential Supplements for Fighting Aging, According to a Longevity Expert"

Longevity expert Dr. Michael Greger swears by taking four supplements daily to fight aging, including vitamin D, vitamin B12, algae-based DHA, and a DIY concoction of ground turmeric, black cumin, ground ginger, and gooseberry powder. He emphasizes the importance of high-quality supplements and recommends verifying products with USP due to concerns about purity and labeling accuracy in the supplement industry.