Chantal.
Any one of them could suddenly drop dead (Tammy less likely since she got WLS and a big chunk of weight fell off), but of all of them Chantal is the one playing in traffic blindfolded.
Years of uncontrolled diabetes sending sugar raging through her veins like shards of glass, enlarged heart, fatty liver, CPAP, history of cancer, can barely walk and has a limp, massive visceral fat, fat deposits in weird places because it has nowhere else to go, probable neuropathy, probable diabetic vision problems, probable kidney disease, no real exercise, eats satellite dishfulls of “food” diabetics shouldn’t touch, squalid hygiene and living conditions, and she’s nearing 40 which is elderly for a death fat.