When 1000-LB Sisters premiered in January 2020, Tammy and Amy Slaton weighed a combined 1,000-plus pounds — the number in the title was the premise. Six years later, all five siblings have had bariatric surgery. But they have not changed equally. This fan ranking measures total change since Season 1 — health, independence, family role — not pounds alone or the current Nashville fallout. The sibling at No. 5 changed least because her life was already the steadiest.
No. 5 — Misty Wentworth: The Steadiest Life, the Quietest Win
Misty Wentworth, the eldest, spent the early years in the background: a wife and mother of four who showed up when it mattered. She waited years for surgery out of fear, then had her procedure on the same day as Amanda in March 2023, according to reports — falling from a reported 240 pounds to 166, with diabetes medication left behind. So why last? Her life barely moved while her health transformed. Season 9 gave her a spine moment alongside Amanda and Chris. Quiet win, smallest leap.
No. 4 — Chris Combs: From Background Brother to Family Anchor
Chris Combs joined in Season 2 as the big brother with his own weight to lose, and he has lost around 140 pounds since, according to reports. The bigger change is his role: the sibling everyone calls when things fall apart. Season 9 tested that role — per a Season Sisters podcast recap, Chris confronted Amy over her silence in the Nashville invitation row, and Episode 10’s synopsis promises he gets “a taste of his own medicine from Amanda and Misty.” From background brother to conscience, and now to the man on trial — a bigger swing than Misty’s, but short of the top three.
No. 3 — Amanda Halterman: The Late Arrival Who Took Over the Room
Amanda Halterman did not arrive until Season 3. She had surgery on the same day as Misty in March 2023, pushed through knee surgery, and manages POTS, a condition that leaves her weak and fatigued, according to reports. In May 2025 she became a grandmother, proudly calling herself “Lolly.” From Tammy’s sparring partner to the sibling nobody crosses twice, she called out the family’s broken communication and pushed Amy to quit smoking now, not Monday. Amanda walked in late and still ended up holding the gavel.
No. 2 — Amy Slaton: Two Kids, a New Marriage, a Stage of Her Own
Amy Slaton started at over 400 pounds, living with Tammy and chasing the same surgery goal. She lost around 125 pounds after gastric bypass, according to reports, then rebuilt everything: mother of two sons, Gage and Glenn, a divorce from Michael Halterman, and a marriage to Brian Lovvorn. Season 9 gave her the moment her arc pointed toward — her first time on a Nashville stage, performing “Pounds Hollow,” a song built from her own poetry. Add maid of honor duties for Tammy’s December wedding, and her Season 1 life is unrecognizable. Only one sibling changed more.
No. 1 — Tammy Slaton: 725 Pounds to a Wedding Date
No ranking of change since Season 1 can end anywhere else. Tammy Slaton weighed 725 pounds at her heaviest, used a wheelchair and supplemental oxygen, and needed help with everyday tasks. After rehab and July 2022 bariatric surgery, she has lost more than 500 pounds — down to a reported 238 by Season 7 — and January 2025 skin-removal surgery took off 15 more pounds, according to reports. But the pounds are only half of it: Tammy went from a woman doctors warned might not survive to a woman planning an “ice princess” wedding to fiancée Andrea Dalton on December 12. She calls it shedding “three whole versions” of herself. Nobody else started further from where they ended up.
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