This question has puzzled me for long. My family does consume non-veg but we don't do it on Mondays and Thursdays and also not on full moon days. Also we only consume mostly meat and fish. So why is it like this ? Why some particular sects/castes have high resistance for non-veg consumption and others are very liberal; given that both follow hinduism and practice the same rituals in the exact same way. What does our vedas/puranas say about this ? I vaguely remember bhagwad-geeta mentioning three types of food: satvik, raajsik and taamsik. Non-veg i believe falls in taamsik and is considered to be the worst.
Related : hinduism.stackexchange.com/questions/2659/… , hinduism.stackexchange.com/questions/349/…– Pratik BhatSep 11, 2014 at 13:41
Your question doesn't seem to be the duplicate of the linked one. You are asking, why cant one eat meat on some specific days and why do some casts have high resistance for non-veg consumption than that of others. The only thing that is duplicate is the title. You should change it.– user31782Dec 20, 2014 at 18:48