Queen Mary II, Queen Elizabeth II, Queen Victoria, Chef Jean-Marie Zimmerman

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Now through May 8, sign up for a free six-month trial of the Global Traveler app and be automatically entered for a chance to win a $500 gift card of your choice for Amazon, Apple or American Express.

To Herb Is Human

With 1,500 herbal and dietary supplements on the market and an increase in their popularity — about 15 million American adults take them regularly — I have to ask: Are they safe for everyone? Are they effective?