翻译过来就是白色食物，指的是白糖、通用面粉等加工食品，或土豆、米饭、通心粉等淀粉类食物。鸡肉、鱼肉是white meat是白肉，那么white food就是白色食物。

     例如：People who want to lose weight should stay away from “white food”, and choose whole grains, fruits and such rather than starchy white potatoes, pasta and rice.

 想减肥的人应该远离“白色食物”，多吃全谷类食物、水果之类，少吃含淀粉的土豆、通心粉和米饭。

    They're quickly broken down into the ultimate white food: sugar. 

那就是糖。糖分在白色食物中会被迅速的分解。