I’m reading yet another example of the benefits of a low or no seed oil diet is reducing chances of a sun burns.

General idea is that because polyunsaturated fats are highly unstable when heated/exposed to oxygen that a person with high amounts of stored polyunsaturated fats in their own fat underneath their skin will react more severely to sun exposure and cause sun burn more easily.

Anecdotally I noticed a huge difference in sun burning when I stopped consuming seed oils and started taking cod liver oil every morning. I have pretty pale Northern European skin and I went from sunburning within an hour of sun exposure to never using sunscreen and not burning even with hours of sun exposure. I think I’d still burn at some point but the threshold is no where near what I am used to it being.

I don't think I really do eat much polyunsaturated fats though? I only use Olive oil when cooking for instance

Unless you are seriously actively avoiding it I would be highly skeptical your average person actually avoids seed oil in their everyday eating because it’s in almost everything packaged and used at almost all restaurants/take out places.

And olive oil is an unsaturated fat. It has more monounsaturated fats than seed oils but still contains polyunsaturated fats. You’d really need to stick to only butter and tallow to really maintain a low Pufa diet, as well as avoid high Pufa foods like fish and fish oils.

The idea is your stored fat should be primarily saturated fats that are stable when exposed to heat and oxygen.

I suppose I wonder how much you would need to avoid it. If it is extremely limited and you do most of your own cooking then your intake would be fairly low.

That might be the case, but then you'd need to weight up the health benefits of perhaps just using a high SPF sunscreen instead of increasing your intake of saturated fats.

Stay safe.

I am convinced we're going to see similar numbers here in California in the near future due to the extreme dry summers we've been experiencing. Very high UV index on those days. In particular, I'm concerned about California kids who spend vast amounts of time outdoors. Sports outside on high UV days lead to lots of exposure. I'm not sure parents who are indoors during the workday understand the amount of sun exposure their children are getting in California.

Exactly, important to note that you can still have very high UV even in overcast cooler weather as well.