Chili (Capsicum annuum L.) leaves contain D2 and D3 vitamins

I am not sure if they are bioavailable.

You should first feed these to chickens, rabbits or fish (or to earthworms/snails with shell and feed them to chickens) so the D-vitamins would transform into human digestion good.

https://www.ncbi.nlm.nih.gov/pubmed/23411232

http://orbit.dtu.dk/files/9719554/vitamin_D3_in_plants_effect_of_UVB_exposure_poster.pdf

This is neat.

My chickens go absolutely crazy over chilli leaves.  At first, I was worried about how frenzied they get when they can eat chilli leaves, but then, I realised that it wasn't hurting them and once they had enough, they stopped wanting any more.  There's obviously something there that they need.  

I've been wondering if it's safe to cook with chilli leaves.  

I also eat the leaves!

Thanks for posting this info, it would be great to see in lab if the egg nutrition changes with chilileaves given to chickens. I hear some finnish chicken owner also gave the fruits.

And how about milk in cows is affected when they eat the leaves?

The hot sensation in chile fruits isnt dangerous. It just fools your nervous system to think, it is hot but it isnt really hot but it is just illusion in brains and will soon wear out and no damage is done.

But I have notice that chiles in supermarkets, mess up me tummy bad! Must be couse they are so poisoned with pesticides, dont notice the same as I eat own chiles..

The good thing in the "hot" substance in chiles is that it is even more stronger antioxidant, than C-vitamin: also anti-inflammatory. The fruits do contain also C-vitamin, but less than one orange.

Also it offers some protect to radiation damage.

You get used to the hot sensation quite quickly. Just dont heat up the fruit, it will destroy its health benefits mostly.

The heat will not be so brutal, when you mix it with oil and dairy products, for sauce or dip and leave it stand for hours: mixing it couple times.

The leaves have 0% heat and for the notice: the capcaicine is not related to the D-vitamins.

https://www.ncbi.nlm.nih.gov/pubmed/12452665

http://www.sciencedirect.com/science/article/pii/S0378874111007963

https://www.dovepress.com/antioxidant-activity-of-capsaicin-on-radiation-induced-oxidation-of-mu-peer-reviewed-article-RRBC