Is it true that you can't get sun exposure when drinking lemon water? Will photosensitive food really turn you dark?

Since photosensitive foods contain photosensitive substances, there is a saying that if you eat photosensitive foods during the day and then go out under the strong sunlight, there is a risk of developing spots and darkening on your skin. Is this true? For example, lemon is the common lemonade. So, is it true that you can’t sunbathe while drinking lemon water? Will drinking lemon water and sunbathing make you darker?

Is it true that you can't sunbathe while drinking lemon water?

It's not that exaggerated. Most people believe that drinking lemon water can easily lead to tanning for two reasons: first, lemon itself contains a photosensitive substance that reacts when exposed to light and makes people darker; second, lemon water is rich in vitamin C, and it is believed that vitamin C is sensitive to light and can cause tanning. In fact, there is no basis to prove the correctness of these two reasons. First, the photosensitive substance in lemon - coumarin is mainly found in lemon essential oil. The lemonade produced by lemon will not absorb much. It may take hundreds of lemons to achieve the effect of tanning. Second, vitamin C has a whitening effect and will not absorb dark skin due to stimulation of light source. So drinking lemon water doesn’t make you tan that much easier.

Will drinking lemon water and sunbathing make you darker?

No. Some people say that lemon is a photosensitive fruit and drinking lemon water during the day will make your skin darker. In fact, this is a wrong view. From a scientific point of view, photosensitive substances mainly include chlorophyll, riboflavin and hemoglobin, which exist in many foods. Therefore, it is completely unfounded to say that such foods cannot be eaten during the day.

Is it true that you can’t go out in the sun after eating photosensitive foods?

Generally speaking, you can sunbathe, but don't do so for a long time. The content of photosensitive substances in many photosensitive foods is low, and even if exposed to the sun, it is not enough to cause the body to deposit melanin. Therefore, there is no need to worry about being exposed to the sun after eating photosensitive foods. If you are worried, just don't eat these foods before going out.

Do photosensitive foods really turn black?

uncertain. In order for the body to have a photosensitivity reaction and precipitate melanin, you need to eat photosensitive foods and get enough sunlight. In addition, if you are allergic to photosensitivity, the most important thing is that the photosensitive substances in the photosensitive foods must reach the amount that causes photosensitivity. These conditions are indispensable. So eating photosensitive foods does not necessarily make you darker. In addition, furanocoumarin, a photosensitive substance in photosensitive foods, is a natural photosensitizer that is commonly found in some fruits and vegetables. However, since its digestion and metabolism time is as long as 10 hours, it is generally not digested and absorbed during the day, so there is no saying that it should not be eaten during the day.