Related storiesMushroom coffeeAlam drinks coffee containing lion's mane mushroom extract each morning. Alam started taking lion's mane to help him cut down on coffee. Whether this is down to the lion's mane is unclear — there isn't much research on the impact of the mushroom on energy levels or sluggishness. In the US, about 35% of adults have vitamin D deficiency, according to Cleveland Clinic. It's up to the individual to decide whether to take vitamin D supplements, but, like zinc, they are unlikely to cause harm when taken in safe amounts, Alam said.

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Persons: —, Venus Williams, LeBron James, Arnold Schwarzenegger, Zalan Alam, Alam, Michelle Lee Organizations: Service, Business, BI, Cleveland Clinic