Loss of Appetite and Unintentional Weight Loss: Is It a Concern?

I have had no appetite this year and have lost a lot of weight?

I have had almost no appetite for the past year and often experience diarrhea.
I used to have a great appetite, but now I can't even finish half of a regular meal.
I've lost 5 kilograms over the year, but I haven't intentionally restricted my eating or tried to lose weight.
My current height and weight are 168 cm and 50 kg.
Is there a problem with this?

Yi Ting, 10~19 year old female. Ask Date: 2015/07/20

Dr. Ye Qianyu reply Family Medicine

Thank you for your inquiry! Based on your description, you have reached the criteria for abnormal weight loss.
It is recommended that you consult a gastroenterologist.
Wishing you a speedy recovery!

Reply Date: 2015/07/20

More Info

Loss of appetite and unintentional weight loss can indeed be concerning, especially when these changes occur over an extended period without any deliberate effort to change eating habits or body weight. In your case, a loss of appetite leading to a weight loss of 5 kilograms over the past year, combined with frequent diarrhea, warrants a closer examination.

Firstly, it’s important to understand that appetite changes and weight loss can be symptoms of various underlying health issues. These can range from psychological factors, such as stress, anxiety, or depression, to physical health problems, including gastrointestinal disorders, infections, metabolic conditions, or even more serious issues like malignancies. Given that you mentioned a significant change in your eating habits and digestive health, it would be prudent to consult a healthcare professional for a thorough evaluation.

From a medical perspective, unintentional weight loss is generally defined as a loss of 5% or more of body weight over six to twelve months without trying to lose weight. In your case, this translates to a weight loss of approximately 2.5 kilograms or more, which you have exceeded. This can lead to nutritional deficiencies, weakened immune function, and a decrease in muscle mass, all of which can further exacerbate health issues.

The frequent diarrhea you mentioned could also be a contributing factor to your weight loss and loss of appetite. Diarrhea can lead to dehydration and nutrient malabsorption, which can further diminish your appetite and overall health. Conditions such as irritable bowel syndrome (IBS), infections, food intolerances, or inflammatory bowel disease (IBD) could be potential causes of your symptoms. It’s essential to discuss these gastrointestinal issues with your doctor, who may recommend tests such as stool analysis, blood tests, or imaging studies to identify any underlying conditions.

Additionally, psychological factors should not be overlooked. Stress, anxiety, and depression can significantly impact appetite and eating behaviors. If you have been experiencing emotional distress, it may be beneficial to speak with a mental health professional who can provide support and coping strategies.

In terms of your current height and weight (168 cm and 50 kg), your Body Mass Index (BMI) is approximately 17.7, which is considered underweight. Being underweight can pose health risks, including weakened bones, hormonal imbalances, and increased susceptibility to infections. It’s crucial to address the underlying causes of your appetite loss and weight loss to prevent further health complications.

To summarize, your loss of appetite and unintentional weight loss are concerning and should not be ignored. I recommend scheduling an appointment with your healthcare provider to discuss your symptoms in detail. They can perform a comprehensive evaluation, including a physical examination and necessary tests, to determine the underlying cause of your symptoms. Depending on the findings, they may recommend dietary changes, medications, or referrals to specialists, such as a gastroenterologist or a mental health professional, to help you regain your appetite and achieve a healthier weight. Remember, early intervention is key to addressing health issues effectively.

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