10:41 AM PT -- Tammy just released a statement regarding Caleb's passing, writing, "I am devastated to share the news of my husband’s passing. He was my best friend and I loved him dearly.
"When I met Caleb he became my guardian angel and now he really is watching over me. Our families appreciate everyone’s sympathy and ask that you respect our privacy at this time."
Caleb Willingham, best known as the husband of "1000-Lb. Sisters" star Tammy Slaton, has died.
His stepmom, Shirley Willingham, confirmed the sad news to TMZ ... but couldn’t provide further details or a cause of death.
As you might know, Caleb -- nicknamed "Killa K" or "Double K," was an infrequent, yet much-beloved character on the reality show alongside Tammy chronicling their constant battle with weight. In 2022, the two met at a rehab facility in Ohio, where they underwent treatment for obesity and they tied the knot that same year.
Weeks later, Slaton told People mag, "Our wedding day was perfect, there was so much love in the room. I literally married my best friend."
But The Sun reported the couple split in May because Caleb was not following his diet, and Tammy was reportedly getting set to file for divorce.
Caleb was 40.
RIP
Originally Published -- 6:05 AM PT