New study suggests exposure to sunlight could alter gut microbiome in humans

The video discusses a study on the human microbiome, highlighting research by Canadian scientists on the effects of UV exposure on gut flora. The study involved 21 women, revealing that UV exposure increased vitamin D levels and gut microbiome diversity in those not taking supplements. It suggests a potential skin-gut axis and links between sunlight, vitamin D, and diseases like multiple sclerosis and inflammatory bowel diseases, though the causal mechanism remains unidentified.

What potential connection did Canadian researchers propose between the skin and gut?

• A skin-gut axis

• A skin-brain axis

• A gut-heart axis

• A skin-liver axis

How many women participated in the study involving UV exposure?

• 25

• 15

• 21

• 30

What was tested in the blood samples of the participants?

• Iron levels

• Vitamin D levels

• Calcium levels

• Cholesterol levels

What change was observed in women who did not take vitamin D supplements?

• Decrease in gut diversity

• Increase in vitamin D levels and gut diversity

• Decrease in vitamin D levels

• No change in gut microbiome

Which diseases are associated with lack of sunlight and unhealthy gut microbiota?

• Diabetes and heart disease

• Multiple sclerosis and inflammatory bowel diseases

• Cancer and hypertension

• Asthma and allergies