The FOCUS OF GURU NANAK’s core Gurmat or Sikhi is more on moral and spiritual discipline than strict dietary rules. Having said that, Guru Nanak calls those who argue about eating or not eating meat “FOOL-ਮੂਰਖੁ”.
ਗੁਰ ਕੀ ਬਾਣੀ ਗੁਰ ਤੇ ਜਾਤੀ ਜਿ ਸਬਦਿ ਰਤੇ ਰੰਗੁ ਲਾਇ ॥ (sggs 1346)
ਇਕਾ ਬਾਣੀ ਇਕੁ ਗੁਰੁ ਇਕੋ ਸਬਦੁ ਵੀਚਾਰਿ ॥ (sggs 646)
The FOCUS OF GURU NANAK’s core Gurmat or Sikhi is more on moral and spiritual discipline than strict dietary rules. Having said that, Guru Nanak calls those who argue about eating or not eating meat “FOOL-ਮੂਰਖੁ”.