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Vitamin D deficiency is more common than mineral deficiency. Rickets is most common between six months and eighteen months. It can be caused by a deficiency of calcium, phosphorus, or vitamin D. There are  10 Ways Vitamin D Food Helps You To Stay Fit & Healthy!: bit.ly/2hJxuAg

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Vitamin D deficiency is very common. Some of the symptoms of deficiency are

Your skin is darker

You feel depression

Aching Bones

Fatigue