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The most common supplement mistake isn't taking the wrong thing. It's taking the right thing inconsistently, or trying to make up for lost time with a massive dose. Here's why steady and small wins every time, and how to build the habit that actually sticks.

Here's something that doesn't make sense: The United Arab Emirates gets roughly 3,500 hours of sunshine every year. That's nearly ten hours of brilliant, unfiltered sunlight every single day. And yet, studies suggest that somewhere between 60 to 80 percent of people living in the Gulf region are vitamin D deficient. In a place where the sun is so relentless that construction workers are legally required to stop at midday, where summer temperatures routinely breach 45 degrees Celsius, we have a vitamin D crisis. How is this possible? The answer, it turns out, tells us something profound about the gap between what seems obvious and what's actually true and about how modern life in the Middle East has created a peculiar biological problem that almost nobody sees coming...

Discover how to move beyond generic multivitamins and choose supplements tailored to your unique needs, lifestyle, and health goals with our guide to personalized nutrition.