During the hot summer, we all like to eat some cool and refreshing fruits, because they can not only eliminate summer heat and make you feel cool, but also contain a lot of nutrients. However, when you eat fruits, you should be careful, because if you eat too much fruits or eat them in an improper way, it will be not beneficial to your health, and may even cause some "fruit diseases".

First, melon
Watermelon is the best fruit in the hot summer. It is cool in nature and tastes sweet, and has the effect of clearing away summer heat. However, if you eat too much watermelon, it will cause damage on the spleen and stomach, and lead to anorexia and even indigestion. Especially for the elderly people, as their digestive function has declined, if they eat too much watermelon, it is likely to cause anorexia, diarrhea and other intestinal diseases.

Second, peach
Peach is warm in nature, which has a lot of health effects on human body such as nourishing lung, promoting the secretion of saliva or body fluid. However, eating too many peaches will produce excessive heat in the body. As a result, people who suffer from thirst or throat pain should not eat too many peaches.

Third, litchi
Fresh litchi contains a high content of sugar. If you eat too much litchi but eat little rice, it will easily cause hypoglycemia, which is commonly known as the "litchi disease", and then lead to symptoms such as dizziness, pale complexion, thirst, nausea, sweating, etc. This is because litchi contains a lot of fructose, which will significantly increase the amount of fructose in the blood. In such a case, the liver will not be able to transform the fructose into glucose, thus bringing down the level of blood sugar.

Fourth, mango
Mango is regarded as "the king of tropical fruits". However, it is not suitable for the people who suffer from deficiency of vital energy or insufficiency of the spleen. Otherwise, it may lead to vomiting, diarrhea and other allergic phenomenon. This is because mango juice contains some alien protein and protease, which are the cause of allergic phenomenon.

Fifth, pineapple
Pineapple is a kind of tropical fruit, which contains a high content of vitamin C. In addition, pineapple contain a special kind of pineapple proteinase, which can increase the permeability of gastric mucous membrane. Therefore, some people may suffer from abdominal pain, itching, nausea, headache, even shock after eating pineapple. In such a case, before eating pineapple, you can put it in salty water for about 20 minutes, so as to destroy pineapple proteinase and reduce the occurrence of allergic reaction.