Appetite Changes and Digestive Issues: What You Need to Know - Gastroenterology and Hepatology

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Appetite and bowel movements?


Hello doctor, I've recently experienced a decrease in appetite, and even when I eat, I feel full after just a small amount.
After two hours, I feel hungry again.
I used to have issues with constipation, but that seems to have improved lately.
However, I start to experience stomach pain after having breakfast, and sometimes I tend to have diarrhea.
Is this because I only eat two meals a day, or is there something else going on?

Nìmíng, 10~19 year old female. Ask Date: 2015/11/23

Dr. Lin Minghui reply Gastroenterology and Hepatology


Hello, it is recommended to follow a light diet, minimize the intake of stimulants and fried foods, and pay attention to your eating habits.
If symptoms persist, such as indigestion or diarrhea, it is advisable to seek outpatient examination for possible inflammation or peptic ulcers.
Wishing you good health.
Sincerely, Lin Ming-Hui, Department of Gastroenterology, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2015/11/23

More Info


Understanding changes in appetite and digestive issues can be complex, as they may stem from a variety of underlying causes. Your description of decreased appetite, early satiety (feeling full after eating only a small amount), and subsequent hunger shortly after meals, combined with changes in bowel habits, suggests that there may be several factors at play.

Firstly, decreased appetite can be influenced by numerous factors, including stress, anxiety, depression, or even physical health issues. Psychological factors can significantly affect how we perceive hunger and fullness. For instance, stress can lead to changes in hormone levels that regulate appetite, potentially causing a decrease in hunger signals. On the other hand, some individuals may experience increased appetite due to stress, leading to overeating.

The sensation of early satiety can also be indicative of gastrointestinal issues. Conditions such as gastritis, peptic ulcers, or even gastroesophageal reflux disease (GERD) can cause discomfort after eating small amounts of food. These conditions can lead to inflammation or irritation of the stomach lining, which may result in a feeling of fullness even when the stomach is not full. Additionally, if there is any obstruction or motility disorder in the gastrointestinal tract, it can also lead to early satiety.

Your mention of experiencing abdominal pain after breakfast and occasional diarrhea suggests that there may be an underlying digestive issue. The fact that you previously experienced constipation but now have more regular bowel movements could indicate a change in your digestive health or diet. It’s possible that the types of foods you are consuming, the frequency of meals, or even hydration levels could be influencing your bowel habits. Eating only two meals a day may not provide sufficient nutrition or fiber, which can lead to digestive discomfort.

Moreover, the transition from constipation to more frequent bowel movements, including diarrhea, could suggest a change in gut flora or an increase in food intolerances. For example, lactose intolerance or gluten sensitivity can manifest with digestive symptoms, including abdominal pain and changes in stool consistency. If you have introduced new foods into your diet or altered your eating patterns, this could also be a contributing factor.

It’s essential to consider the overall context of your health. If you are experiencing significant changes in appetite and digestion, it is advisable to consult a healthcare professional. They can conduct a thorough evaluation, which may include a physical examination, dietary assessment, and possibly laboratory tests or imaging studies to rule out any underlying conditions.

In the meantime, consider keeping a food diary to track what you eat, how you feel after meals, and any digestive symptoms you experience. This information can be valuable for your healthcare provider in identifying patterns or triggers related to your appetite and digestive issues.

In summary, changes in appetite and digestive health can be multifactorial, involving psychological, dietary, and physiological elements. It is crucial to approach these symptoms holistically and seek professional guidance to ensure that any underlying issues are addressed appropriately.

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