What causes a reduced appetite during summer?

Mar 18, 2025 Source: Cainiu Health
Dr. Shen Yonghua
Introduction
In general, reduced appetite during summer may be caused by factors such as anxiety or depressive moods, high temperatures, changes in lifestyle and作息 (作息 should be translated as "daily routine"), chronic gastritis, or hyperthyroidism. Symptomatic management may involve general treatments, medication, and other approaches. It is recommended to maintain a balanced diet structure during summer, consume various foods in moderation, and avoid picky eating habits to help maintain overall health.

Generally, reduced appetite during summer may be caused by factors such as anxiety or depressive emotions, high temperatures, changes in lifestyle and sleep patterns, chronic gastritis, or hyperthyroidism. Symptomatic management through general treatments and medication may be necessary. If discomfort occurs, it is recommended to seek timely medical advice and undergo appropriate treatment under a doctor's guidance. Detailed explanations are as follows:

  

1. Anxiety and Depressive Emotions

High summer temperatures and life stress may intensify anxiety and depression. These emotional states can disrupt the neuroendocrine system, affecting normal gastrointestinal function, leading to reduced appetite, and may be accompanied by symptoms such as low mood, insomnia, and difficulty concentrating. It is recommended to engage in moderate physical activities like walking or yoga to help alleviate anxiety and depression and promote appetite recovery.

2. High Temperatures

With rising summer temperatures, the body automatically adjusts its energy consumption and metabolic levels to adapt to the hot environment, which may result in decreased appetite. This is usually accompanied by symptoms such as thirst, mild dizziness, and fatigue—normal responses as the body adapts to high temperatures. It is advisable to choose light and easily digestible foods, such as vegetables, fruits, and porridge, and avoid greasy or heavily seasoned foods that may burden the gastrointestinal system.

3. Changes in Lifestyle and Sleep Patterns

During summer, with longer days and shorter nights, people may go to bed late and wake up early. Changes in sleep patterns can also affect eating habits, resulting in reduced food intake. This may be accompanied by symptoms like listlessness, daytime sleepiness, and difficulty concentrating. It is recommended to maintain regular sleeping hours and ensure sufficient sleep to help restore normal eating habits.

4. Chronic Gastritis

Improper eating habits in summer, such as excessive consumption of cold beverages or spicy foods, may trigger or worsen chronic gastritis. In chronic gastritis, the gastric mucosa is damaged, gastric acid secretion becomes abnormal, and digestive function weakens, reducing the ability to digest and absorb food, thus causing loss of appetite. Symptoms may include upper abdominal discomfort, nausea, and vomiting. It is recommended to take medications such as omeprazole enteric-coated tablets, lansoprazole tablets, or pantoprazole enteric-coated tablets under a doctor's guidance.

5. Hyperthyroidism

Autoimmune disorders, genetic factors, and other causes may lead to hyperthyroidism. High summer temperatures may exacerbate symptoms in patients with hyperthyroidism. Excessive secretion of thyroid hormones accelerates metabolism and consumes large amounts of energy but may also suppress the appetite center, leading to appetite loss. Other symptoms may include palpitations, excessive sweating, and weight loss. It is recommended to follow medical advice to take medications such as methimazole tablets, propylthiouracil tablets, or carbimazole tablets to relieve symptoms.

It is recommended to maintain a balanced diet during summer, consume various foods in appropriate amounts, and avoid picky eating to help maintain overall health.