Why may food taste weird in space?

📌 Despite being given carefully designed diet plans ⬆️, astronauts have reported that meals taste bland and that they were not meeting their nutritional needs, which can be dangerous for long-term missions. Astronauts typically only meet about 80% of their energy needs in space.

📌 Scientists already knew that low-gravity causes fluid to shift from the lower to the upper parts of the body, creating facial swelling and nasal congestion which affects smell and taste. But these symptoms begin to disappear within a few weeks.

📌 Researchers have found that spatial perception can play a significant role. A greater sense of loneliness and isolation — which astronauts may experience in space — can influence how people smell and taste their food.

📌 One of the long-term aims of the study is to make better tailored foods for astronauts, as well as other people who are in isolated environments, to increase their nutritional intake closer to 100%.

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