What causes weight loss nausea and vomiting

The occurrence of nausea and vomiting during weight loss may be related to factors such as changes in dietary structure, excessive dieting, excessive exercise, metabolic disorders, or psychological stress. Suggest adjusting weight loss methods and seeking medical attention promptly to identify potential illnesses.

1. Dietary structure mutation

Suddenly reducing carbohydrate intake or adopting a ketogenic diet can stimulate gastric acid secretion, and prolonged fasting time may lead to bile reflux. Some people are sensitive to additives in meal replacement foods, and sugar substitutes such as sorbitol may cause gastrointestinal discomfort. It is recommended to gradually transition to a dietary pattern and avoid replacing all staple foods at once.

2. Excessive dieting

Long term calorie deficit can trigger the body's protective mechanism, slowing down gastric emptying and causing nausea. When the blood sugar level is below 3.9mmol/L, the autonomic nervous system will force feeding through the vomiting reflex. The daily intake should not be less than 70% of the basal metabolic rate, and can be alleviated by eating small meals frequently.

3. Excessive exercise

After high-intensity exercise, blood concentration flows to the muscles, and insufficient blood supply to the gastrointestinal tract leads to temporary stagnation of digestive function. Performing abdominal compressions such as rolling the abdomen within one hour after a meal can easily cause reflux of gastric contents. It is recommended to control aerobic exercise within 60 minutes and replenish electrolyte water after exercise instead of drinking a lot of water.

4. Metabolic disorders

Rapid weight loss may lead to ketoacidosis, and an increase in the concentration of β - hydroxybutyrate in the blood can stimulate the vomiting center in the medulla oblongata. Patients with thyroid dysfunction are more prone to metabolic disorders during weight loss, accompanied by symptoms such as palpitations and hand tremors, and should seek medical attention immediately.

5. Psychological stress

Excessive attention to weight numbers can activate the sympathetic nervous system, and elevated cortisol can inhibit gastrointestinal motility. Some people experience conditioned nausea due to food resistance, which needs to be improved through cognitive-behavioral therapy.

If persistent vomiting occurs, organic diseases such as gastritis and gallstones should be investigated, and soda crackers can be temporarily consumed to neutralize stomach acid. During weight loss, it is recommended to maintain a daily intake of 1200 calories, prioritize easily digestible steamed foods, and avoid consuming caffeine on an empty stomach. It is recommended to lose no more than 1% of body weight per week, use a diet record app to monitor nutritional balance, and supplement with vitamin B and zinc elements under the guidance of a nutritionist if necessary.