“贪食”常见的英文表达可以是 “greedy eating” 或 “overeating due to greed” ，具体使用可根据语境调整：
“greedy eating”：侧重于描述一种带有贪婪特质的进食行为，强调吃得过多且带有一种贪心的意味。例如：His greedy eating at the buffet made others look at him in surprise.（他在自助餐上的贪食让其他人惊讶地看着他。）
“overeating due to greed”：更明确地指出是因为贪婪而导致的过度进食。例如：Overeating due to greed can lead to various health problems.（因为贪婪而贪食会导致各种健康问题。 ）