How can bitter melon improve gastrointestinal function?
Mar 22, 2025
Source: Cainiu Health
Dr. Shen Yonghua
Introduction
Under normal circumstances, bitter melon improves gastrointestinal function by promoting the secretion of digestive fluids, enhancing gastrointestinal motility, regulating intestinal flora, protecting the gastric mucosa, and reducing gastric heat. Bitter melon is cold in nature, and excessive consumption may cause gastrointestinal discomfort, particularly in individuals with deficiency-cold of the spleen and stomach, who should consume it cautiously. In addition, individuals allergic to bitter melon should avoid its consumption.
Generally speaking, bitter melon improves gastrointestinal function through promoting secretion of digestive fluids, enhancing gastrointestinal motility, regulating intestinal flora, protecting the gastric mucosa, and reducing stomach heat. The specific details are as follows:
1. Promoting Digestive Fluid Secretion
Bitter melon contains abundant bitter principles that can stimulate taste receptors, thereby reflexively increasing the secretion of digestive fluids such as saliva and gastric juice. Amylase in saliva can initially digest starch in food, while hydrochloric acid and pepsin in gastric juice help break down food components like proteins, thus improving digestion efficiency and helping to alleviate indigestion.
2. Enhancing Gastrointestinal Motility
Dietary fiber in bitter melon helps promote gastrointestinal motility. Dietary fiber increases the bulk of food in the intestines, stimulates intestinal peristalsis, facilitates smoother movement of food through the gastrointestinal tract, reduces the retention time of food in the gastrointestinal tract, effectively prevents constipation, maintains normal bowel function, and keeps the gastrointestinal tract in good working condition.
3. Regulating Intestinal Flora
Some active ingredients in bitter melon, such as polysaccharides and flavonoids, can regulate intestinal flora. These components can promote the growth and proliferation of beneficial bacteria, such as bifidobacteria and lactobacilli, while inhibiting the growth of harmful bacteria, such as Escherichia coli and Staphylococcus aureus, maintaining a balanced state of intestinal flora. This enhances the digestive and absorptive functions of the intestine and boosts intestinal immunity.
4. Protecting the Gastric Mucosa
Antioxidants in bitter melon, such as vitamin C and carotene, can enhance the defensive capacity of the gastric mucosa and reduce damage caused by gastric acid and Helicobacter pylori. At the same time, some components in bitter melon can also promote the repair and regeneration of gastric mucosal cells, helping to maintain the integrity of the gastric mucosa and offering certain preventive and adjunctive therapeutic effects for gastric diseases such as gastritis and peptic ulcers.
5. Reducing Stomach Heat
Bitter melon is cold in nature and has the effect of clearing heat and relieving fire. It can remove stomach heat from the gastrointestinal tract. When excessive stomach heat occurs, symptoms such as bad breath, swollen and painful gums, burning pain in the stomach, and dry, hard stools may easily appear. Consuming bitter melon can help reduce stomach heat, alleviate these discomfort symptoms, and restore normal gastrointestinal function.
As bitter melon is cold in nature, excessive consumption may cause gastrointestinal discomfort, especially for individuals with a cold deficiency of the spleen and stomach, who should consume it cautiously. In addition, individuals allergic to bitter melon should also avoid consumption.
References:
1. Sun Changhao. Nutrition and Food Hygiene [M]. 8th Edition. Beijing: People's Medical Publishing House, 2017.
2. Zhao Lin. Food Incompatibility and Compatibility [M]. Beijing: People's Military Medical Press, 2016.
