Here Comes The Sun: The Science of Vitamin D

When you hear the word "photosynthesis", you probably think plants, but we also "make with light". Our skin uses Ultraviolet B light to synthesize Vitamin D, and it's pretty essential to our wellbeing. But what is fascinating is the delicate balance between making enough Vitamin D and being at high risk of skin cancer. And the molecule that completes this menage a trois is the one that fundamentally underpins racism and things like "fairness creams".

[krishashok]

PLEASE NOTE: 2:52 The Ionizing and Non-Ionizing labels are on the wrong sides. Gamma ray/UV is the ionizing side and Microwave/Infrared/Radio is the non-ionizing side. YouTube used to allow annotations but now they don't, so I couldn't edit the video. Thanks for the patience

[nairshar]

the amount of research that has gone into this video is just amazing. Thank you for this informational video . The best video in entire youtube about vitamin D ..

[savvi]

As a brown person living in Europe, the part about being vitamin D deficient is true. My first year I was severely ill during the bleak, grey and depressing autumn and winter. GP adviced tested and lo, and behold vitamin D deficient. Started taking pills and watched my well being became better.
Of course, diet and excersize ALWAYS play a role on your overall physical and mental health. They are non negotiable, and so is Vitamin D.
Thanks for covering this Krish. Your content helped me critically think over this subject matter. There was a phase where even doing groceries became an upsetting chore (where are the vegetables coming from, are they organic? Do they sell A2 milk here? Yoghurt? Etc etc.
Glad I grew out of it relatively quickly. Having a healthy diet, brisk walking at least 20 minutes a day, and the sun light matters more than that croissant with a coffee on a sunday morning at an artisinal bakery.

[rajanibiohub]

Lovely Krish. Amidst an explosion of misinformation you come across as a whiff of fresh air with real testable information. Kudos. Thanks for this.

[Skulltroxx]

man, I love this type of videos. Just tons of information on why things are they way they are, and tips on how to make things better.

[kishanprakash]

At 3:12 you have to switch the caption. Short waves are ionising. Long waves are non- ionising. You have written the opposite.

[putinfromrussia]

Vitamin D is not just limited to the bones. It is the most important vitamin and it has potential to cure any disease. People don’t understand it’s importance because it’s free

[smitajal]

Wow...krish...you make everything so easy to understand... I'll never stop saying that 😅 All your video topics should be taught in school to kids, instead of subjects which are never used in general life.... My heartfelt Thank you 😍💕

[shvndrrana]

Simple, scientific, concise, ... such an amazing video... thank you for your efforts sir...

[geetachhibber]

Thank you for providing scientifically factual information. I’m so sick of all sorts of ‘nutritionists’, ‘self styled ‘experts’ giving out incorrect information and that too with such confidence. The latest was a famous ‘nutritionist’ ( I’ll not name her) who said ‘koi packet thoree na hai skin mein hi aap vitamin D bator lo ge’! As a doctor it worries me.

[Shinjin]

Thank you very much for all you do. Even with 73 years of life experience and college degrees in biological sciences, I learn something new from almost every video you provide. As a fictional science officer used to say, "Live long and prosper". 🌞

[bindushreel]

After long time of hearing and confusions about Sun and vitamin D, finally getting some clarity, thanks!

[vijayalakshminarasimhan]

Wonderful video Krish👍 very informative and useful. Thank you !

[thirdeyeinthemaking]

Our ancient saying "Sun is the perceivable God."

[SattvikNick]

Great video as always - loaded with insights😊..btw, you're leveling up your editing game quiet significantly with each video 🎉

[Kalyani-yt]

Excellent analysis...dispels so many 'obvious truths' !!

[mjpaca]

Awesome information! Thank you so much!

[ShubhamMoon-kh]

such genuine information is so amazing

[chaithrashetty]

Thank you for this very informative content!!

[aify]

Excellent research and even better packaging and