Gwen Orders Blake To Lose 20 Lbs.

Blake Shelton’s belly is bulging over his belt — and twiggy galpal Gwen Stefani is demanding that he lose 20 pounds of flab, or risk losing her!

Blake shed 30 pounds after he began dating his fellow coach on "The Voice" in 2015. But during their two years together, the big meat-eater has packed most of the weight back on. “Blake’s gotten more comfortable in the relationship,” a friend tattled, “and he’s gotten pudgy again. Gwen calls him out on it, but he tries to joke about it, saying she should love him more because there’s more of him to love now!”

“But,” added the insider, “Gwen doesn’t think it’s funny!” Dedicated vegan Gwen makes sure Blake eats right when they’re together — but now they have separate schedules promoting their new albums. That leaves Blake to his own devices, said the pal, and back to wolfing down the wrong food.

“Gwen says she won’t stand for it any longer,” the source said. “She sees how big his belly has gotten. She tells Blake it’s not only a bad look for him, but it’s bad for his health.” The determined songbird has even penned a list of stuff Blake should eat, added the pal, and “calls him several times a day to make sure he’s sticking to it!”