Vitamin D Society

08/28/2026

A new study found that sunlight exposure and sunbed use reduced the risk of diabetes? Learn more:

Higher short-term ambient UVA exposure was associated with modestly lower blood glucose levels, particularly during winter, in a large UK Biobank analysis. Separately, more frequent solarium use, used as a proxy for habitual sunlight exposure, was associated with a lower hazard of type 2 diabetes, a...

08/20/2026

How much Vitamin D do adults need each day?

08/04/2026

"Dermatologist Dr. Steve Feldman discusses large observational studies from Sweden and the United Kingdom that found people with greater sun exposure tended to live longer than those who avoided it."

Could avoiding the sun entirely be bad for your health?Dermatolog...

07/07/2026

Great book for you to learn all about the benefits of sunlight!

Health benefits outweigh the risks for most of us, according to new book

06/17/2026

A new book by Rowan Jacobsen has just been published - In Defense of Sunlight. It provides details on the many health benefits of sun exposure. "A call for a return to common sense in our relationship with our local star, In Defense of Sunlight offers its own seven words of advice: Get sun. Not too much. Go outside." Here is an excerpt

It’s one of the only things that reliably increases health, longevity, and happiness. So why are we so hellbent on blocking it out?

05/29/2026

Today, we honor the life and legacy of Dr. Marc Sorenson, EdD, a passionate advocate for sunlight, vitamin D, and public health whose work inspired countless people around the world. Dr. Sorenson dedicated his life to educating others on the importance of sunlight and its profound impact on human health. His voice, research, and advocacy have left a lasting mark on the wellness and vitamin D community, and his contributions will continue to inspire generations to come.
We invite you to read the heartfelt tributes shared in his honor and, if you knew Dr. Sorenson personally or were impacted by his work, we welcome you to submit your own tribute as well.
Read more here:
https://www.grassrootshealth.net/.../tribute-to-the-late.../
With gratitude and remembrance,
The GrassrootsHealth Community 💛

Honoring the life and legacy of one of the most passionate and influential advocates for sensible sun exposure and vitamin D education Key Points Dr. Marc Sorenson’s lifelong work helped transform the conversation surrounding sunlight, vitamin D, and human health. Tributes from colleagues, friends...

05/27/2026

To Fear or Not to Fear?
The relationship between sun exposure, sunscreen, skin cancer, and vitamin D is more complex than many of us realize.
For years, the message has often been simple: avoid the sun. But is the full picture more nuanced?
Sunlight plays an essential role in human health, including **vitamin D production**, yet questions remain about how to balance the benefits of sun exposure with the importance of protecting skin health.
In this GrassrootsHealth blog, they explore the science behind:
- Sun exposure and skin cancer risk
- The role of sunscreen in skin protection
- Vitamin D and its impact on overall health
- What current research tells us about finding a healthier balance
The goal isn’t fear, it’s understanding. Because informed conversations about sunlight and health matter.
Read the full article: https://www.grassrootshealth.net/.../to-fear-or-not-to.../

A new randomized controlled trial confirms a dark side to regular sunscreen use, further complicating the relationship between sun exposure, sunscreen, skin cancer, and vitamin D Key Points Two important distinctions about the relationship between sunshine exposure and skin cancer should be made: 1)...

05/25/2026

Could sunlight hold clues to better immune health?
For centuries, light has been used as a tool for healing, and today, researchers are revisiting its potential role in autoimmune disease, immune regulation, and overall health.
The conversation around sunlight is evolving. Beyond vitamin D production, emerging science is exploring how sun exposure and UV light may influence important biological pathways connected to inflammation, immunity, and wellbeing.
What can we learn from both history and modern research? And could a more balanced understanding of sunlight help reshape how we think about health?
🌞 Explore the science, the history, and the healing power of light in GrassrootsHealth latest blog. https://buff.ly/i7GcCjO

A New Look at an Ancient Therapy Key Points Research suggests sunlight and UV exposure may help regulate immune activity and influence autoimmune diseases such as multiple sclerosis through mechanisms that extend beyond vitamin D alone. In a recent clinical trial, individuals receiving narrowband UV...

05/22/2026

The sun is not simply something to avoid. it’s a powerful biological signal that affects far more than vitamin D.
From supporting vitamin D production, immune health, circadian rhythm, mood, cardiovascular health, and cellular function, sunlight plays a vital role in human health. But getting it right requires more than just “more sun” or “less sun.”
How can you enjoy the benefits of sunlight while minimizing the risk of overexposure? 🌞
In this comprehensive guide, explore a smarter, more personalized approach to safe, intelligent sunlight exposure, including:
- Understanding UV intensity & timing
- Adapting exposure to your skin type
- Building sun tolerance gradually
- The role of nutrition in supporting healthy sun exposure
- Practical strategies for balancing benefits and safety
📖 Read the blog:

Practical tips and skin-nourishing nutrients to help implement intelligent sunshine exposure into your regular routine Key Points The goal of intelligent sun exposure is gradual adaptation and avoidance of sunburn, not complete sun avoidance. Modern indoor lifestyles may contribute to poor “light ...

05/21/2026

Excellent advice on how to get enough sun: "There isn’t a one-size-fits-all answer. “It really depends on your skin, but everyone, in general, should practice sun safety,” Dr. Radisic says. One paper suggests a range of 5 to 30 sunscreen-free minutes a day for optimal vitamin D production."

Is the sun good for you? A doctor explains five health benefits of the sun and how to enjoy them safely.