Diabetes can sometimes feel like an isolating disease. You can feel like you're the only one who knows what it's like. But a number of Hollywood celebrities have type 1 or type 2 diabetes, and you may not have even known.

Halle Berry

Actress Halle Berry has type 2 diabetes. In 1989, when she was on the TV show "Living Dolls," she felt a nagging tiredness and became very ill. The Oscar-winning actress admits that she had not taken care of herself, but after the event she dramatically altered her diet to one low in fat, sugar, and processed carbohydrates.

"Diabetes turned out to be a gift," Berry, 43, told the U.K.'s Daily Mail. "It gave me strength and toughness because I had to face reality, no matter how uncomfortable or painful it was."

Tom Hanks

The Oscar-winning actor has type 2 diabetes. In 2013, Hanks announced he had the condition on "Late Show With David Letterman." Weight is a contributing factor to the disease, and though Hanks is generally in good shape, his weight has fluctuated over the years for different roles.

"I went to the doctor and he said, 'You know those high blood sugar numbers you've been dealing with since you were 36? Well, you've graduated,'" Hanks told Letterman. "'You've got type 2 diabetes, young man.'"

Salma Hayek

Actress Salma Hayek experienced gestational diabetes, a type of diabetes that occurs during pregnancy. Gestational diabetes usually goes away after pregnancy, but it raises the risk of developing type 2 diabetes. Doctors say that all women should be checked for gestational diabetes when they are 24 to 28 weeks pregnant.

Larry King

As one of the most recognizable television interviewers, Larry King, 80, has heard a lot of stories about the disease. But it wasn't until 1998 that King was diagnosed with type 2 diabetes. Today he combats diabetes complications with medication, a healthy diet, and frequent checks of his A1c blood levels.

Paula Deen

Celebrity chef Paula Deen has type 2 diabetes. Famous for her buttery, sugary recipes, Deen went public with the disease in 2012. She said she wants "to let the world know that [diabetes] is not a death sentence."

Nick Jonas

Singer Nick Jonas of the Jonas Brothers told the public about his type 1 diabetes in 2007. Before that time, he said his blood sugar had spiked at more than 700—normal blood sugar levels range from 70 to 120. His symptoms included weight loss and thirst.

To learn more about living with diabetes:

Type 1 Diabetes
Type 2 Diabetes
Coping with Diabetes

http://www.webmd.com/diabetes/ss/slideshow-celebrities-with-diabetes http://www.cnn.com/2013/10/08/showbiz/celebrity-news-gossip/tom-hanks-diabetes/ http://www.dailymail.co.uk/health/article-371528/Halle-Berry-My-battle-diabetes.html http://www.everydayhealth.com/health-report/type-2-diabetes-pictures/celebrities-with-type-2-diabetes.aspx#/slide-11