NEW YORK — Richard Simmons, television’s hyperactive court jester of physical fitness who built a mini-empire in his trademark tank tops and short shorts by urging the overweight to exercise and eat better, died Saturday. He turned 76 Friday.

Los Angeles police and fire departments say they responded to a Los Angeles house where a man was declared dead from natural causes. Neither provided a name, but The Associated Press matched the address and age to Simmons through public records.

TMZ was first to report his death, which has also been reported by other outlets citing unnamed Simmons representatives.

Simmons, who had revealed a skin diagnosis in March 2024, had lately dropped out of sight, sparking speculating about his health and well-being.

Simmons was a former 268-pound teen who shared his hard-won weight-loss tips as host of the Emmy-winning daytime “Richard Simmons Show,” author of bestselling books and the diet plan Deal-A-Meal, as well as opening exercise studios and starring in millions of exercise videos, including the successful “Sweatin’ to the Oldies” line.

“My food plan and diet are just two words — common sense. With a dash of good humor,” he said in 1982. “I want to help people and make the world a healthier, happy place.”

Simmons embraced mass communication to get his message out, even as he eventually became the butt of jokes for his outfits and flamboyant flair. He was a guest on TV shows led by Merv Griffin, Mike Douglas and Phil Donahue. But David Letterman would prank him and Howard Stern would tease him until he cried. He was mocked in Neil Simon’s “The Goodbye Girl” on Broadway in 1993, and Eddie Murphy put on white makeup and dressed like him in “The Nutty Professor,” screaming “I’m a pony!”

Simmons’ daytime show was seen on 200 stations in America, as well as in Australia, New Zealand, the Philippines, Japan and South America. His first book, “Never Say Diet,” was a bestseller.

Simmons was a native of New Orleans, a chubby boy named Milton. (He renamed himself “Richard” around age of 10 to improve his self-image).

Simmons said his mother watched exercise guru Jack LaLanne’s TV show religiously when he was growing up, but he wasn’t crazy about the fitness fanatic. “I hated him,” Simmons said. “I wasn’t ready for his message because he was fit and he was healthy and he had such a positive attitude, and I was none of those things.”

Simmons went to Italy as a foreign exchange student and ended up doing peanut butter commercials and bacchanalian eating scenes for director Federico Fellini in his film “Fellini Satyricon.” He said: “I was fat, had curly hair. The Italians thought I was hysterical. I was the life of the party.”

His life changed after getting an anonymous letter. “One dark, rainy day I went to my car and found a note. It said, ‘Dear Richard, you’re very funny, but fat people die young. Please don’t die.’ ” He was so stunned that he went on the starvation diet that left him thin but ill.

After the crash diet, he gained back 65 pounds. Eventually, he was able to devise a sensible plan to take off the pounds and keep them off. “I went into the business because I couldn’t find anything I liked,” he said.

When Simmons hadn’t been seen in public for several years, some news outlets speculated that he was being held hostage in his own house.

In telephone interviews with “Entertainment Tonight” and the “Today” show, Simmons denied the claims and told his fans he was enjoying the time by himself.

In 2022, Simmons broke his silence, with his spokesperson telling The New York Post that the beloved fitness icon was “living the life he has chosen.”