A nutritionist has expressed concerns regarding persistent fatigue after eating, identifying it as a potential indicator of underlying health issues. While experiencing some drowsiness following a meal is common, nutritionist Fiona Hunter has cautioned that "excessive fatigue" post-consumption should prompt individuals to consult their GP.

Approximately 20 per cent of the population reports experiencing a phenomenon popularly known as a "food coma" after substantial meals. Medical professionals refer to this condition as post-prandial somnolence or post-prandial fatigue, characterized by feelings of sleepiness, reduced energy levels, and difficulties in concentration. Although such a response is usually not alarming, it can sometimes suggest a deeper health concern.

In an article for BBC Good Food, Hunter noted the complexities surrounding the reasons for post-meal drowsiness, stating, "The exact cause is not fully understood, but there are several theories. One is that it's your body's natural response to digestion.” She elaborated that during digestion, blood flow is redirected to the digestive system, which can result in decreased blood supply to the brain, leading to feelings of tiredness. Additionally, she suggested that the inclination to sleep after eating may be rooted in evolutionary biology, as early humans were likely predisposed to rest after consuming food.

Hunter highlighted several medical conditions that could contribute to extreme fatigue following meals. These include:

  1. Food Intolerances or Allergies: Some individuals may experience fatigue and various symptoms when consuming specific foods. Keeping a food diary may help identify any problematic items.

  2. Diabetes or Prediabetes: Fluctuations in blood sugar levels post-meal can lead to fatigue in some individuals.

  3. Anaemia: Deficiencies in iron or vitamin B12 can result in persistent tiredness.

  4. Hormonal Issues: Conditions such as an underactive thyroid can adversely affect energy levels and metabolism.

In her recommendations, Hunter urged individuals who frequently feel exhausted after meals to consult healthcare professionals. She remarked, "If you're consistently feeling exhausted after meals, talk to your GP or a registered dietitian. They can help identify any potential health concerns and provide personalised advice on optimising your diet for sustained energy."

Hunter also discussed dietary factors that could contribute to sleepiness. She pointed out that meals high in sugars or refined carbohydrates, such as white bread, rice, pasta, biscuits, and cakes, as well as proteins containing tryptophan like turkey, chicken, eggs, cheese, fish, nuts, and seeds, may increase feelings of fatigue post-eating.

For those who experience drowsiness after meals but do not have any identified medical conditions, other suggestions from Hunter may assist in managing this common issue.

Source: Noah Wire Services