Outdoor field trials are expected to begin in the UK next month and, if successful, could provide an important new dietary source of vitamin D.
Approximately 13-19% of Britons have low levels of vitamin D, which is needed to keep bones, teeth and muscles healthy. Our main source comes from exposing the skin to sunlight, which converts provitamin D3 into an active form of vitamin D that our bodies can use.
However, in the UK there is only enough sunlight to achieve this between April and September, meaning we have to rely on dietary sources - such as oily fish, red meat, egg yolks and mushrooms - or supplements. This is particularly challenging for vegans, as many supplements contain lanolin from sheep's wool.
This story is from the May 24, 2022 edition of The Guardian.
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This story is from the May 24, 2022 edition of The Guardian.
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