Many thrifty women reheat leftover rice to avoid waste, but this practice can cause prolonged digestive difficulties and may even lead to stomach disorders in severe cases. Regular consumption of reheated leftovers increases the risk of indigestion and gastric issues.
Long-term consumption of leftover rice can cause stomach ailments
The primary component in the rice we commonly eat is starch. Starch is hydrolyzed by salivary amylase in the mouth into dextrin and maltose. After passing through the stomach into the small intestine, it is broken down into glucose and absorbed by the intestinal mucosa. When heated above 60°C, starch gradually expands and eventually becomes paste-like—a process known as "gelatinization."The digestive enzymes in the human body can easily hydrolyze these gelatinized starch molecules. However, when gelatinized starch cools, it undergoes a process called "starch aging." Once aged, these starch molecules cannot revert to their original gelatinized molecular structure even when reheated at high temperatures.The human body's ability to hydrolyze and digest this retrograded starch is significantly reduced. Therefore, prolonged consumption of reheated leftover rice can easily lead to indigestion or even gastric disorders. Elderly individuals with diminished digestive function, infants, young children, the chronically ill, and those with gastrointestinal diseases should avoid or minimize eating rice that has cooled and been reheated.
Additionally, starchy foods are highly susceptible to Staphylococcus contamination, as they provide an ideal environment for bacterial growth and reproduction. Consequently, consuming leftover rice can easily cause food poisoning. Mild cases may present with nausea, vomiting, abdominal pain, and diarrhea; severe cases can lead to intense diarrhea, dehydration, and even shock.
Key Habits for a Healthy Stomach
1. Regular Meal Times and Portions: Eat three meals daily at consistent times. Consume food at scheduled intervals regardless of hunger, avoiding excessive hunger or fullness to maintain regular stomach activity. Keep portion sizes moderate at each meal.
2. Moderate Temperature: Consume food and beverages at a "neither too hot nor too cold" temperature. Extremely hot or cold items entering the stomach can irritate the gastric mucosa, potentially leading to stomach disorders over time.The more you chew, the more saliva is secreted, which protects the gastric mucosa.
4. Timed Hydration: The optimal times to drink water are upon waking on an empty stomach and one hour before each meal. Drinking immediately after meals dilutes gastric juices, while consuming soup with rice impairs digestion.
5. Supplement Vitamin C Appropriately: Vitamin C protects the stomach. Maintaining normal vitamin C levels in gastric juices helps the stomach function effectively, safeguards the stomach, and enhances its anti-cancer capacity.
6. Prioritize Sweet and Warming Foods: Sweet foods nourish the spleen and stomach. Foods like Chinese yam, millet, and pumpkin are excellent for tonifying the spleen and stomach. They also boost immunity.