Cereal killer : a Savannah Reid mystery / G.A. McKevett.

Enhanced descriptions from Syndetics:

In a world where stick-thin women adorn fashion magazines and silver screens, plus-sized private eye Savannah Reid is grateful for the wild success-and fabulous fashion tips-of full-figured model Cait Connor. When Cait is found dead after months of extreme dieting, when everyone assumes a risky regimen did her in. But then a second full-figured model meets an untimely end, and it's time to weigh the facts...and search for suspects. At first it seems that Cait's death is a clear case of dieting run amok. As the new spokesperson for Wentworth's Slenda Flakes, Cait needed to lose thirty pounds in sixty days and apparently died trying. Now her grieving husband wants to sue Wentworth Cereal for that fatal clause in her contract. Considering how much shredded wheat and puffed rice Wentworth has on the market, Kevin Connor could receive a lot of dough. It all seems cut and dry until Kameeka Wills, another plus model working-and starving-for Wentworth, is killed by a hit-and-run driver while jogging at four a.m. sisters...even if it means going under cover for the camera. There are more models on the Slenda Flakes campaign who could be at risk, and enough suspects to keep Savannah hopping. There's Kevin Connor and his high-state lawsuits; Charles Wentworthiii, whose secretly struggling company can't afford a weigh-loss cereal that packs on the pound; and Jerrod Beekman, a desperate ad executive whose agency's fate is aligned with Wentworth's. Top that off with a slimy stalker and a womanising photographer, and Savannah's bowl is more than full. But she's determined to satisfy her craving for justice-before a cunning killer strikes again...