Fatigue, mood swings, and muscle pain could all point to a silent health culprit, Vitamin D deficiency. Here's how to spot the signs and fix it with natural food sources.

Vitamin B12 deficiency can cause a number of strange sensations, like numbness, tingling, and more. “It felt like electricity ...

Your muscle weakness and mood changes might not be just stress – they could be warning signs of vitamin D deficiency.