Vitamin D and Mood: The Seasonal Connection
Low vitamin D and winter blues often travel together. But does taking vitamin D improve mood? The biggest trials say mostly no. Here's the full picture.
Low vitamin D and winter blues often travel together. But does taking vitamin D improve mood? The biggest trials say mostly no. Here's the full picture.
In much of the U.S., winter sun is too weak for your skin to make vitamin D. Here's what that means for your intake, and what it doesn't.