Meal (e.g., breakfast, lunch, dinner); the act of eating (often used as 食事をする).
毎日三回、規則正しく食事をすることが大切だ。
It's important to have regular meals three times a day.
外食が続いたので、久しぶりに家で食事した。
I had been eating out a lot, so I had a meal at home for the first time in a while.
食事の前に手を洗いなさい。
Wash your hands before eating.
Diet; the kinds and quality of food a person eats (refers to dietary habits or nutrition).
ダイエットのために食事を見直した。
I changed my diet for the sake of losing weight.
バランスの良い食事を心がけている。
I try to maintain a well-balanced diet.