The Food and Drug Administration on Tuesday advised consumers not to purchase or use “MAXILOSS Weight Advanced” — a product promoted and sold for weight loss on various web sites, including DreamLifeWeightLoss.com, and in some retail stores.

The Food and Drug Administration on Tuesday outlined a new campaign attacking fraudulent weight-loss products marketed as dietary supplements, especially those companies that proffer a “magic pill” that almost immediately achieves weight loss.

The Food and Drug Administration last week prompted the recall of two more products sold as supplements but adulterated with prescription medicines.

As a Food and Drug Administration advisory committee convenes to decide whether or not to approve a new drug for treating obesity, two nonprofit groups centered on the epidemic said more means of addressing it are needed.

The Food and Drug Administration on Thursday warned that Que She, marketed as an herbal...