Why do hands feel tight after cutting zucchini?

Hands may feel tight after cutting zucchini due to the exposure to the vegetable's natural compounds, such as saponins or oxalates, which can cause a mild irritation or drying effect on the skin. Additionally, the fibrous texture of zucchini can create a sensation of tightness as the skin absorbs moisture while handling the vegetable. If you're experiencing this sensation frequently, it may help to wash your hands thoroughly and apply moisturizer afterward.