With most people unable to get enough vitamin D from sunlight or foods, scientists are suggesting that a new vitamin D-fortified food bread made with high-vitamin D yeast could fill that gap.

Promoting Public Health: High vitamin-D bread could help solve widespread insufficiency problem

Taking inspiration from trees, scientists have developed a battery made from a sliver of wood coated with tin that shows promise for becoming a tiny, long-lasting, efficient and environmentally friendly energy source. Their report on the device — 1,000 times thinner than a sheet of paper — appears in the journal Nano Letters.

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Promoting Public Health: High vitamin-D bread could help solve widespread insufficiency problem

Promoting Public Health: High vitamin-D bread could help solve widespread insufficiency problem