of or relating to diets or dieting
(有关)饮食的
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dietary advice for healthy skin and hair .有关保持健康皮肤和头发的饮食建议。
provided by one's diet
饮食中的
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the average dietary calcium intake was 140 milligrams per day .饮食中钙的平均摄入量是每天140毫克。
〈旧〉 规定(或限制)的饮食。
"late Middle English (as a noun): from medieval Latin