Scientists turn tomatoes into a rich source for vitamin D

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Two studies now show that with a little help from gene editing, Sun-ripened tomatoes can stockpile a precursor molecule to vitamin D.

Normally, tomatoes and other plants in their Solanaceae family make a precursor called provitamin D3 but then convert it into other compounds using enzymes coded for by two genes, called. The researchers suspected that knocking out, or incapacitating, either of these genes would cause the plant to accumulate provitamin D3, which when exposed to sunlight transforms into a second precursor—previtamin D3—that people can use. “This seemed like a real opportunity,” Martin says.

So far, the modified tomatoes have been grown only in laboratory greenhouses. Martin will begin a field trial next month and Choe hopes to start one this summer. Field tests will be crucial to seeing whether the plants can thrive under real-world stress. Researchers will also need to show that the body can absorb the previtamin D3 in the tomatoes and convert it to vitamin D.

Another challenge could be consumer acceptance: Some people may not accept gene-edited tomatoes, notes Kevin Cashman, a nutritional scientist at University College Cork. If the fortified tomatoes make it to market, plant physiologist Dominique Van Der Straeten and plant biologist Simon Strobbe of Ghent University write in a commentary in

 

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Good news. For vegans. If no-one else.

Well that is a weight off our minds.

Great source of vitamins

Yeah bcz cows milk is super low in vit. D. The cows don't graze in the grass in the sun light. I see now milk companies proudly write on milk cartons, ' fortified with Vit.D'

Why not simply supplement it? (-enacting policies that support vitD supplementation) Maybe it's a kind of stigma of supplementation or a lack of research in large healthy populations with nearRDA dosages that are relevant etc edit other things instead like reduced water-needs

This is how we end up with zombie vegetables.

That almost makes me glad?

But do they taste good? Lately all the fruits and vegetables are tasteless

I'm still not gonna eat them raw. You can't get me to do it.

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