Dr Joseph Allen

They find that people who eat diets that have more fruits and vegetables, that have oily fish, reduce risk of developing conditions like macrogeneration, reduce risk of things like diabetic retinopathy.

And so I try to focus on eating a good, healthy diet.

No.

It's actually a – it was propaganda started in the UK by Great Britain.

From what I understand, I'm sure there's like a historian out there who's just like grumbling at me.

But from what I have read and studied is that – I believe it was World War II.

that Britain was being attacked by the Germans and they were worried about German warplanes dropping bombs on them, especially at nighttime.

And they had already established radar to detect warplanes coming, but they didn't want Germany to know that.

So they put out their own propaganda saying, hey, our scouts can detect German warplanes better because they eat their carrots.

Because carrots have beta carotene, which your body can convert to vitamin A, which is essential for nighttime vision and retinal health.

Yeah.

I mean, it is based on some – like vitamin A is essential for photoreceptors in the back of the eye.

But most people are not vitamin A deficient by far.

And so it's pretty rare that we see vitamin A deficiency in the eye clinic, unless you happen to live in a place that's pretty malnourished.

Sweet potatoes can certainly help you with things like vitamin A. They've got other nutrients in them I think are really good.

Sweet potatoes technically have beta carotene, right?

Same thing as carrots.

If you're deficient in vitamin A, your body will convert that beta carotene to vitamin A, which is good.

But—

Mainly in green leafy vegetables, you can not only get things like beta carotene, but you can get lutein and zeaxanthin, which are amazing for eye health in many ways.