It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that a man who was a disbeliever came to the Noble Prophet (peace and blessings be upon him) and ate a lot of food. Later, he accepted Islam and then ate very little food. This was mentioned to the Noble Prophet (peace and blessings be upon him), so the Noble Prophet (peace and blessings be upon him) said: "A Muslim eats with one intestine, and a disbeliever eats with seven intestines."