18th century sources state that Singhs loved the meat of wild boar.
But Daya Singh Rahitnama prohibits Sikhs from eating domestic pig probably because domestic pigs eat human excrement and their meat can cause disease.
ਖੰਡੇ ਪਾਹੁਲੀਆ, ਚਰਨ ਪਾਹੁਲੀਆ, ਕੁੱਠਾ ਔਰ ਸੂਰ ਪਾਲਿਆ ਨ ਖਾਇ।