Excessive sun can do a lot of damage to your eyes and skin. Personally, super-bright sun has often left me blitzed, totally fatigued, while I actually like gray skies. But I am beginning to realize that it is lack of nutrition not just genetic predisposition that has been the problem.
Specifically, most people don't get anywhere near enough of two powerful and natural antioxidants which are extremely effective at protecting from the sun: lutein and astaxanthin.
Lutein (like its sisters Zeaxanthin and Cryptoxanthin) is especically concentrated in the eyes. It filters out blue light and allows you to withstand stronger rays. You may notice your eyes become richer in color if you eat more of it. You can get lutein in kale (huge amounts) and spinach as well as egg yolks and a number of other colored-skin foods.
Astaxanthin is what makes salmon pink and is found in ocean animals and plants. It has been called "nature's sunscreen" and prevents sunburn. I love salmon personally but it is usually dry in a can and farmed (not wild caught) as sushi, so as an alternative astaxanthin supplements are very cheap.
If you eat a lot of lutein and astaxanthin, you will notice your sun tolerance go up significantly.
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