Good drinks for the voice:Part10 Melon and Pineapple

I will now review how the voice relates to specific kinds of drinks, in a series.
This is part 10: Melon and Pineapple
The effects of eating the fruit are not the same as drinking the juice extracted from the fruit. I have focused my research specifically on juice.
How do you feel in your mouth or throat if you eat a melon? How about after eating a pineapple?
If you feel itching in your throat after eating melon or a numbing tongue after eating pineapple, you have to be careful. If you experience either of those symptoms, please be warned about the common allergic affects of melon and pineapple juice.
The melon causes oral allergy syndrome. The pineapple causes proteolytic enzymes and oxalic acid, which is the source of the irritation and numbing problems.
If you do not have these kind of problem, no need to avoid drinking melon or pineapple juice before singing.
This oral allergy is a syndrome, known to be related to hay fever. The allergy causes inflammation in the oral cavity and the pharynx, resulting in the feeling of itching.
Therefore there is a possibility of movement becoming obstructed in the pharyngeal cavity, which is relevant to vocalization.
Regarding the reaction to pineapple, the proteolytic enzymes and oxalic acid melt the tongue mucosa, resulting in numbing of the tongue.
Although this problem does not necessary relate to the voice, it may disturb you when trying to focus while singing.
You should not have the melon and pineapple before singing, just to be safe.
As I mentioned, I recommend you to know your allergic reaction to specific fruits beforehand.
About other fruits, strawberry, kiwi, watermelon, tomato, pear, banana, peach and apple also have the allergic substance. For example: melon is okay but not watermelon, or watermelon is okay but not pineapple, e.g.
Please be aware those fruits as well.