The persons who are running under Shani Mahadasha or Antardasha (Saturn Period or sub-period) (Sade Sati 71/2 yr or Astam 2.5 yr) spell should always try to avoid or stop non-veg, liquor etc. intake during this period of time to minimize sufferings or bad effects of planet causing to them especially and invariably on Saturdays.
Even those who are having good Saturn should also try to avoid non-veg, liquor etc. during the course of period to continue enjoying good fruit of Saturn.
It is also considered as a karmic remedy for bad Shani Mahadasha.