Today’s Solutions: October 19, 2021

Most of us know that vitamin D is an essential vitamin we get from sunshine, but what exactly does it do for us and how do we know if we’re getting enough?

Vitamin D is made in the skin after sun exposure, but we can also get it from dietary sources such as oily fish (mackerel, tuna, and sardines), mushrooms and fortified dairy and nondairy substitutes. This vitamin is critical for immune health, bone health, and microbiome diversity, and, as you may have guessed, most people don’t get enough of it during the darker winter months.

Margherita T. Cantorna, a microbiologist and immunologist, explains that sunscreen, darker skin pigmentation, clothing, and reduced daylight all inhibit the body’s vitamin D absorption. Humans need at least 600 IU per day of vitamin D, so how can you make sure you’re getting enough? If you avoid sunlight or live in a northern region, it is recommended that you take a vitamin D supplement and eat extra vitamin D rich foods like salmon, eggs, yogurt, olive oil, and cheese. 

It is possible to have too much vitamin D, though. More than 4,000 IU per day is not recommended, but colder seasons and indoor lifestyles mean most of us are far from at risk for hitting this upper limit. So if you want to feel healthier and stronger this winter, consider looking at your vitamin D intake and making some tuna salad for lunch!

Solutions News Source Print this article
More of Today's Solutions

These are the inaugural winners of the Earthshot Prize

We recently wrote about Earthshot Prize nominee Vinisha Umashankar, a clever 14-year-old student from Tamil Nadu who created a mobile ironing cart that runs off solar power. Although Umashankar didn’t win an Earthshot Prize, the ... Read More

6 Ways to end bedtime procrastination

Are you a bedtime procrastinator? Do you know you should go to sleep but end up binge-watching television, scrolling through social media, or looking for an appetizer recipe to bring to that dinner party this ... Read More

Residents of this small Spanish town pay less taxes the more they recycle

The small Spanish town of La Nucía is located just 10 kilometers away from the touristy seaside resorts of Benidorm. But compared to its skyscraper-dominant neighbor, La Nucía’s architecture ranks high in sustainability rather than ... Read More

Help scientists locate walruses by becoming a walrus detective

The Arctic is under increasing threat due to climate change, and so is the biodiversity that it supports. That’s why the World Wildlife Fund for Nature and the British Antarctic Survey have decided to collaborate with ... Read More

EU is giving away 60,000 free Interrail tickets to European youth

The European Commission Vice President Margaritis Schinas realizes that the coronavirus pandemic forced young people to “[miss] valuable and formative moments of their youth.” As a recognition of their sacrifice in the name of public ... Read More

Shades of Favor is the first all-Black female group to summit Kilimanjaro

A team of climbers has made history as the first group of Black women to climb Mount Kilimanjaro, the world’s largest free-standing mountain. The group of nine women come from a wide range of backgrounds ... Read More