NAD Supplements Promise to Improve Energy, Metabolism, and Longevity. Here’s How Experts Recommend You Use Them

You’ll likely be hearing more and more about NAD. But what's the difference between NAD+ and NADH, and should you take supplements or get injections? And is it really effective for anti-aging?
NAD supplements

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What is NAD? If you’ve been finding yourself more tired and foggy than usual, Google results and Reddit threads might have led you to this three letter acronym.

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