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TalkingNutrition

Providing perspectives on recent research into vitamins and nutritionals

Entries filed under 'Skin health'

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    Advice vs Real Life: How Do Sun-Safe Practices Affect Vitamin D Levels?

    Vitamin D is one of those confusing nutrients. It is hard to consume adequate vitamin D from the diet, and sun exposure can make up for this shortfall. Yet, sun exposure increases risk of skin cancer. Advice to reduce exposure to the sun could therefore concurrently decrease risk of skin cancer while increasing the likelihood of vitamin D deficiency. To make matters more confusing, studies show that behaviors such as wearing sunscreen do not necessarily result in lower sun exposure. What a muddle - is there a way out of this confusing mess?

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    A Sunscreen That Allows Vitamin D Production

    It’s one of those evergreen vitamin dilemmas. Does one apply sunscreen to prevent skin cancer, or leave it off to let the skin make its own vitamin D, with the risk of sunburn? Finally, a research group led by Kockott seems to have provided the perfect solution, with a publication a couple of days ago looking at “optimizing” a sunscreen to maximize vitamin D production whilst minimizing the risk of sunburn. The Daily Mail reports that a sunscreen developed via this principle is already on sale. 

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    Balanced Nutrition is the Foundation for Beautiful Skin

    I love the last phrase of this quote: “Vitamin B12, also known as cobalamin, is a water-soluble vitamin that is important in the hematological and nervous systems, and it has a complex relationship with the skin”. Let’s discuss the ‘complex relationship with skin’ which is being reported by Fox News, UK Daily Mail, and maybe others.

    Over 40 years ago, it was known that treatments with pharmacologic doses of vitamin B12 (and vitamin B6) may trigger skin outbreaks in select individuals.

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    beach-waikiki

    Vitamin D Supplementation and Health

    A colleague of mine, Dr Jane Doe, recently expressed an opinion that vitamin D supplementation is ineffective in raising serum 25(OH)D3 concentrations. Because I respect Jane, her apparent dismissal of the evidence stymied me.

    Dear Jane, I hope you saw the paper by Curiel-Lewandrowski and colleagues. High-dose vitamin D supplementation 

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    Recent Rise in Melanoma, and Getting the Balance Right Between Sun Exposure and Vitamin D

    Today, the Canadian Cancer Society published statistics showing that rates of melanoma, the deadliest form of skin cancer, are on the rise. There were around 76,000 cases of non-melanoma skin cancer reported, and 6,500 cases of melanoma. Avoiding sun exposure will reduce risk of skin cancer, but how will this affect vitamin D deficiency levels?

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