'Real Housewives of Beverly Hills' Star Adrienne Maloof -- No More Bud ... She's Drinking Alone

"Real Housewives of Beverly Hills" star Adrienne Maloof is cutting back on the carbs -- she's kicked her Anheuser-Busch heir BF to the curb.

Sources close to the couple tell us Adrienne ended her year and a half relationship with Jacob Busch -- but there's no bad blood between 53-year-old Maloof and 25-year-old JB.

Maloof and Busch started dating in 2013, but their relationship apparently started to fade last fall and now has finally run it's course.

Jacob shouldn't have trouble finding a beer to drown his sorrows.