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  Hi. I am a teenage female and have had a calcium deficiency for most of my life. When I was seven, my aunt noticed white specks on my fingernails, which are an embarrassment still today. Since the age of 12, I’ve consumed three cups of 1% milk each day, plus other calcium-rich foods, such as tofu and fish. I am considering trying calcium supplements, but am unsure which type I should purchase.

Dr. Sara Henderson (ND) has responded to your question: 
 
Although you may benefit from extra calcium, I don’t believe that calcium deficiency is the cause of your concern. Random white spots on the nails are more likely due to a zinc deficiency or an injury to the nail bed. If the texture of the nails is rough, or there is pitting, other causes could include Omega-3 deficiency, a fungus or a skin condition, such as psoriasis.
 
It sounds like you have attempted to increase calcium levels with no luck. Your bones may benefit from one of our calcium-magnesium formulas. Vitamin D is always good to boost calcium absorption. However, I highly recommend trying a zinc formula that you take for three to four weeks at a dose of 10 to 25 mg per day on a full stomach. With any vitamin or mineral supplement, always follow the label guidelines and directions.
 
Please remember it is important that you see advice on this subject from a competent medical professional before undertaking any supplement regime, particularly if you are currently taking prescription or over-the-counter drugs, and before making any changes to your prescribed medications. Each person responds uniquely to specific natural-health products, and your supplement choices should be made in consultation with your doctor.
 
Dr. Sara

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