the advantage of food therapy

Food theray can adjust the balance of immune function, and keep a relatively invariable enviroment inside our body.
Medical treatment of food is not only safe, but also good for our health.
And the most important point is that food therapy can avoid the adverse effects from chemical substances.

大概意思就是 饮食疗法可以调节免疫功能的平衡、维持身体内部环境保持相对恒定。药用食物不但治疗安全, 而且能滋补身体, 还有一点很重的就是能避免化学药物给人体带来的不良的副作用。

希望采纳。