Sayyida Maymunah bint Harith (may Allah be pleased with her) narrates that the Noble Prophet (peace and blessings be upon him) said: The disbeliever eats with seven intestines, and the believer eats with one intestine.
Hadith Referenceالفتح الربانی / كتاب الأطعمة / 7377
Hadith Gradingمحدثین:صحیح
Hadith Takhrij«حديث صحيح لغيره، أخرجه ابن ابي شيبة: 5/ 430، والطحاوي في شرح مشكل الآثار : 2008 ، (انظر مسند أحمد ترقيم الرسالة: 26845 ترقیم بيت الأفكار الدولية: 27382»
Brief Explanation
Benefits: … In these blessed ahadith, excessive eating and overfilling the stomach have been prohibited. By eating less, not only is one in accordance with this hadith, but health and strength are also maintained. If all people were to agree to act upon this hadith, it is the consensus of the physicians and doctors that diseases would themselves disappear.