Jessica Simpson's weight is back in the tabloids again, this time as a result of a "desperate" and "radical" new diet she's supposedly taken on thanks to the advice of her spanking-new boyfriend, former 49ers tight end Eric Johnson.

OK! Magazine reports that Simpson recently went on a weekend retreat of vegan eating and Pu-erh tea drinking led by Master Ming Yi Wang. And as it turns out, Master Wang's home base is right here in San Francisco.

Master Wang receives in-person consultations at the Mission District's Medicine Buddha Teahouse and Healing Center and also sells herbal remedies online via his Zen and Tea shop, where prices reach as high as $800 for a 12.6-ounce "Aged Zen Cake" of Pu-erh.

The Medicine Buddha website lists "elite athletes, weekend warriors, [and] chronic pain sufferers" among its clientele. "Shocked my system with a vegan diet, special Pu-erh tea from China, and cupping since Friday!" Simpson tweeted June 27. "Who am I right now? This might be too clean!"