https://www.wolframalpha.com/input/?i=time+to+sunburn
Using the above calculator, it should take me 15 minutes to get a sunburn. I went out in the sun for a hour today, so 4x the exposure time.
I got hot, I was sweaty, but I didn’t get a sunburn. Bright beautiful day. Mostly carnivore for 8 months now. Went out at noon, peak sun time.
https://pubmed.ncbi.nlm.nih.gov/8973605/
A 1996 mice study showing that seed oils made mice more sensitive to sun damage.
https://lpi.oregonstate.edu/mic/health-disease/skin-health/essential-fatty-acids
A university faq about fats and omega3s being good for skin health.
So not much to explain photosensitivity and diet.
Neat, I don’t use sunscreen and rarely regret it, good years I spend enough time outside in late spring to get a tan then I’m fine
When I was a kid my hair was sun bleached blond thanks to a swimming pool at home and summer holidays