Why Do I Get Lightheaded After Eating?

Postprandial hypotension causes lightheadedness after eating in up to 30% of older adults. This occurs when blood pressure drops 20+ mmHg within two hours of a meal as blood redirects to your digestive system for nutrient absorption. Large meals, high-carbohydrate foods, and alcohol consumption increase this effect. Your autonomic nervous system may struggle to maintain adequate blood flow to your brain during digestion. Other factors include dehydration, certain medications like blood pressure drugs, and underlying conditions such as diabetes or Parkinson's disease. Eating smaller, more frequent meals and staying hydrated can help minimize these episodes.

Related Questions

• What foods are most likely to cause lightheadedness after eating?

• How long does postprandial hypotension typically last?

• When should I see a doctor for lightheadedness after meals?

• Can certain medications make post-meal dizziness worse?

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