Why Do I Gain Weight When I Fly?

The perception of weight gain after a flight can be attributed to a combination of physiological and behavioral factors. Understanding these elements can help travelers manage their weight and maintain a healthy routine during air travel.

Fluid Retention

Flights often cause temporary weight gain due to fluid retention, a common side effect of changes in cabin pressure. This retention is often more noticeable in the legs and feet. The human body tends to retain more fluid in response to pressure differences, leading to a temporary increase in weight that usually resolves after a few days. To mitigate this effect, staying hydrated and moving around during the flight are recommended practices.

Diet and Snacks

Airplane food, including the notorious honey roasted peanuts, is often high in sodium, which contributes to water retention. Additionally, the availability and abundance of food in the plane can lead individuals to overeat, especially when bored. To address this, travelers are advised to make mindful food choices and limit their intake of high-sodium snacks.

Reduced Activity

Long periods of sitting during flights can lead to decreased calorie expenditure, a particularly significant issue on long-haul flights. This sedentary behavior can contribute to weight gain over time. To combat this, it is crucial to engage in physical activity such as walking around the cabin or stretching, which can help maintain a healthier metabolism and prevent weight gain.

Digestive Changes

The change in air pressure during flights can affect digestion, sometimes leading to bloating or discomfort, making you feel heavier. Identifying specific triggers and managing them can help in mitigating these digestive changes.

Circadian Rhythm Changes

Circadian rhythms, which regulate various physiological processes, can be significantly disrupted by travel across time zones. This disruption can influence digestion and the levels of specific microorganisms in the digestive tract, both of which can contribute to weight gain. Travelers should aim to maintain a consistent sleep schedule and manage their diet to accommodate these changes.

Counteracting the Effects

To mitigate the effects of weight gain on flights, travelers should focus on staying hydrated, moving around during the flight, and making mindful food choices. Additionally, understanding the impact of circadian rhythm changes and seeking strategies to manage them can help maintain weight and overall health.

Respected airline travel, such as First Class, should provide ample opportunities to gain weight due to the luxurious amenities and food offered. However, to ensure that the weight gain from the flight is accurate, one should subtract the weight of the food and drinks consumed during the journey. Proper planning and mindful consumption can help travelers maintain their pre-flight weight.