Excessive Tiredness After Eating

Updated November 21, 2016

The cause of excessive tiredness after eating might be as simple as overeating or having had a hard day, but it can also indicate the need for a lifestyle change or a trip to the doctor's office.


Everyone experiences tiredness at one time or another. It is the body's response to physical exertion, stress or lack of sleep. When sleep does not relieve the fatigue, however, it is time to look more closely at its underlying causes.


Physicians identify the underlying causes of fatigue by looking at the history and development of the symptoms through interviews, lab tests and physical examinations. Fatigue is caused by many problems, including anaemia, sleep disorders, depression, major organ dysfunction. Poor diet and lack of exercise or hydration also may be involved.


The causes of fatigue may be complex, and its treatment can incorporate medication, stress management or a change in sleep habits. Diet and exercise often play a part as well. Most treatments will have several components that work together to overcome fatigue.

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