Many doctors prefer a natural food, rich in dietary fibre, which will help you to avoid constipation, rather than having to resort to purgatives. The reason is obvious-prevention is always better than cure.
adj.(形容词) Of or relating to diet. 饮食的:饮食的与饮食有关的 n.(名词) 【复数】di.e.tar.ies A system or regimen of dieting. 饮食:饮食的体系或生活方式 A regulated daily food allowance. 每日规定的食物量