Even for Californians, the winter months can lead to a decrease in vitamin D intake which is known to affect mood and productivity. Check out these healthy tips to boost your vitamin D intake in the winter months. 1. Get 20 to 25 minutes of sun exposure every day! Go for a short walk or bike ride during your lunch break. It will make a big difference in your day. 2. Fatty Fish. Fatty fish like salmon and tuna are chalked full of vitamin D! The added bonus to eating these fis

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