30 Bananas a Day!

Soo...this is something my mom told me. I think she learned about this when we were living in Peru. She also mentioned the story when her dad came home late at night and ate a watermelon and got very ill right after; stomach pains and throwing up a lot.

Has anyone heard of this? I know a lot of people eat watermelon in the morning....haven't read anything of someone eating it at night. I wanted some watermelon at around 7pm yesterday :/

 

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I ate some watermelon last night and had really bad chest pains all night, I thought I was going to die! 

 

I did some reading and I might just have angina from not eating greens. Either that or a B12 deficiency. 

 

No matter what time I eat watermelon my back/kidney area always has a lot of pressure. 

Eating watermelon after you have eaten fat or other things that digest slowly may cause discomfort. It makes since that eating watermelon after all of the other things that you have eaten all day long may cause discomfort. I usually have WM for breakfast but sometimes I want it late night and I just can't resist. In that case I try to at least make sure that the previous meal was at least 3 hours ago.
Well, yes, watermelons are really "bad guys".. They contain fructose in excess of glucose (poorly digestible), fructans (non digestibe by humans, hence broken down by gut flora) and sugar-alcohols, which, when consumed in excess of individual tolerance may cause diarrhea and other such issues (bloating, gas-you name it).

Any fruit fits into one of three categories, depending upon their free glucose to free fructose ratio: those (fruits) with excess fructose, those with excess glucose, and neutral (about equal ratios of glucose and fructose).
I will put some quotes from wikipedia here just to save me some work:
"Studies show the greatest absorption rate (of fructose) occurs when glucose and fructose are administered in (at least) equal quantities."

When there is more fructose than glucose, frucose may not be completely absorbed, studies show.
"When fructose is not absorbed (in the small intestine), it is transported into the large intestine, where it is fermented by the colonic flora."
"The colonic flora also produces carbon dioxide, short-chain fatty acids, organic acids, and trace gases in the presence of unabsorbed fructose. The presence of gases and organic acids in the large intestine causes gastrointestinal symptoms such as bloating, diarrhea, flatulence, and gastrointestial pain. Exercise immediately after consumption can exacerbate these symptoms by decreasing transit time in the small intestine, resulting in a greater amount of fructose being emptied into the large intestine."

About fructans:
Fructans are fructose polymers (fructooligosaccharieds/polyfructose) and are (also) present in some fruits and vegetables. Because of the configuration of their osidic bonds, fructooligosaccharides resist hydrolysis by salivary and intestinal digestive enzymes. In the colon they are fermented by anaerobic bacteria, including Klebsiella, E. coli and many Clostridium species, which are considered less-friendly bacteria in the gut.
Basically this will result in the same gastrointestinal symptoms as mentioned for fructose.

Polyols (sugar alcohols) are also poorly or not at all absorbed by humans but can be fermented by the intestinal flora and cause gastrointestinal symptoms.

Now, keep in mind that the tolerance level for those substances is different for different individuals. According to sources dealing with IBS (irritable bowle syndrome), watermelons happen to contain fructose in excess of glucose, fructans, and also polyols, and might not be (to many) the most digestion-friendly fruit out there.

Yes, watermelons have a relatively low sugar content; however, when a whole watermelon is eaten, the amount of fructose would be considered "excessive" by standard terms.

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