Rob Kardashian is free of diabetes

Rob Kardashian's nutritionist has told him he is free of diabetes.

The reality TV star has been battling the health issue for several years, but his fiancee Blac Chyna has motivated him to eat better and exercise - and her encouragement appears to have paid off.

"That's the best news I've heard all year, literally," the Rob and Chyna star told news show Entertainment Tonight, revealing that he is no longer a diabetic.

In addition to the good news about the diabetes, Blac Chyna, who is expecting the couple's first child together, wanted to know if having a baby was also good news and confronted her beau on the show.

"That's obviously in front of that," Rob chuckled. "The baby is obviously the best news. That's my life."

Last year (15) doctors advised heavyweight Rob to lose weight to combat his diabetes, which can often be deadly.

Since he started dating the dancer/model he has lost more than 50 pounds (22.6 kilograms) and is eating better, working out and determined to lose more weight.

He said, "I'm focused and determined to reach my goal weight of 200-205 pounds (90-92 kilograms)... happy I found my motivation."