JCTA Member Videos

unshine for You: Why New Sun Exposure Guidelines Vary Based on Skin Type

Thursday, May 16, 2024

Updated recommendations emphasize an individualized approach to sun exposure and sun protection based on skin type in order to maximize benefits and reduce harms

Key Points – In March 2023, Australia became the first country to provide updated guidelines for sun exposure based on skin type, risk of skin cancer, and risk of vitamin D deficiency, officially recommending increased sun exposure for darker skinned people

– Darker skin contains more melanin, which acts as a natural sunscreen. While this decreases the likelihood of sunburns and skin cancer, the more melanin skin contains the longer it takes to produce vitamin D, so that a person with skin type VI may require more than 10 times the length of UVB exposure to make the same amount of vitamin D as someone with skin type II

– Once you know your skin type, you can get a better idea of your overall risk for skin cancer and sunburn. The next step is to determine how much time you can expose your skin to sunlight without burning; after that amount of time is when it is important to cover up, apply sunscreen, or get out of the sun.

Learn more at https://www.grassrootshealth.net/blog…

Make Sure You Are Getting Enough of Both Sunshine & Vitamin D

It is important to incorporate safe, sensible sun exposure into a regular routine, just as it is important to make sure you are getting enough vitamin D. Because the sun produces many health-benefiting molecules in addition to vitamin D, sunshine exposure cannot be replaced with taking a supplement.

It is also important not to stop supplementing with vitamin D during the summer. Most people do not make enough vitamin D from sunshine alone, due to their lifestyle and other factors, and therefore must rely on supplementation to maintain optimal vitamin D levels of 40-60 ng/ml (100-150 nmol/L).

Measure Your Vitamin D Level

Having and maintaining healthy vitamin D levels and other nutrient levels can help improve your health now and for your future. Choose which additional nutrients to measure, such as your omega-3s and essential minerals including magnesium and zinc, by creating your custom home test kit at https://daction.grassrootshealth.net/…

The Dangers Of Sunscreen! Cancer Risk?

Wednesday, June 14, 2023

The Dangers Of Sunscreen! Cancer Risk?

Dr Greger shared a recent bombshell about sunscreen and sun tan lotion so in this video we’re going to learn why many sunscreens on the market are hazardous to our health but also which kinds are safe to use! We are absolutely no recommending you don’t use any sunscreen but we are advocating for using the safe one if you are able! It’s my opinion that if financially you’re not in a position to afford the recommended sunscreen then it’s still better to use the stuff you can buy at your local store than none at all! DISCLAIMER This information, including but not limited to text, graphics, images, studies, audio and other material contained in this video or youtube channel are for informational purposes only. No material on this channel is intended to be a substitute for professional medical advice and treatment. Studies Effect of Sunscreen Application on Plasma Concentration of Sunscreen Active Ingredients: A Randomized Clinical Trial https://pubmed.ncbi.nlm.nih.gov/31961… Exposure patterns of UV filters, fragrances, parabens, phthalates, organochlor pesticides, PBDEs, and PCBs in human milk: Correlation of UV filters with use of cosmetics https://www.sciencedirect.com/science… Sunscreens: are they beneficial for health? An overview of endocrine disrupting properties of UV-filters https://pubmed.ncbi.nlm.nih.gov/22612… Serum Testosterone Concentrations and Urinary Bisphenol A, Benzophenone-3, Triclosan, and Paraben Levels in Male and Female Children and Adolescents: NHANES 2011-2012 https://pubmed.ncbi.nlm.nih.gov/27383… Urinary concentrations of benzophenone-type UV filters in U.S. women and their association with endometriosis https://pubmed.ncbi.nlm.nih.gov/22417… Benzophenone-3 promotion of mammary tumorigenesis is diet-dependent https://pubmed.ncbi.nlm.nih.gov/33400… Comparison of dermal absorption of zinc from different sunscreen formulations and differing UV exposure based on stable isotope tracing https://pubmed.ncbi.nlm.nih.gov/22316… Lack of significant dermal penetration of titanium dioxide from sunscreen formulations containing nano- and submicron-size TiO2 particles https://pubmed.ncbi.nlm.nih.gov/20156… Comparison of effects of estradiol (E2) with those of octylmethoxycinnamate (OMC) and 4-methylbenzylidene camphor (4MBC)–2 filters of UV light – on several uterine, vaginal and bone parameters https://pubmed.ncbi.nlm.nih.gov/15979… Dr Greger’s YouTube Channel    / nutritionfactsorg   Dr Greger’s website http://nutritionfacts.org/ Stock footage provided by Videvo, downloaded from www.videvo.net and Pexels https://www.pexels.com/

How Sensible Sun Exposure Benefits Your Health – Interview with Dr. Michael Holick

Tuesday, May 31, 2022

Key Points

  • To close up this year’s Sunshine Month, we asked Dr. Michael Holick, Ph.D, MD, to share the latest knowledge of and research on the benefits of sunshine exposure. Watch the following special question and answer interview with Dr. Holick, and make note of the key points below.
  • Dr. Holick typically recommends covering up the sensitive parts of the skin (face, top of the hands, ears) for those with lighter skin color, but exposing the larger surfaces of the body (arms and legs), without sunscreen, for a reasonable amount of time before covering up make vitamin D and the other biochemicals resulting from sunshine exposure
  • “In my opinion, there is minimal risk for being exposed to sensible sun exposure, but there is a lot of upside in improving your overall health and wellbeing.” ~ Dr. Michael Holick


Supplements Do Not Replace Sunlight

Friday, February 11, 2022

Supplements do not replace sunlight

Sunlight has more benefits than those provided by UVB and vitamin D. Learn about the different rays found in sunlight and their unique benefits to your health.


Vitamin D and COVID 19 2021 Update

Wednesday, February 2, 2022

Vitamin D and COVID 19 2021 Update

This updated video highlights the benefits of optimal vitamin D levels shown by research to strengthen your immune system and help reduce your risk, severity and mortality from COVID-19.


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