It appears that the rumors about Biz Markie having a down syndrome or being mentally challenged are not true, as there are no official reports supporting that. Some even say that he's got a speech impediment while others say he suffers from asthma.
What we found is that the rap icon was diagnosed with type 2 diabetes before and it made him realized he needed to make a change. After focusing on his health, Markie lost around 140 pounds in 2014.
Biz Markie eats organic to maintain his slimmer figure, and plans to lose more pounds. The weight loss, he says, has also helped him in his professional life. - US Magazine
Tip! Find the latest updates about Biz Markie on Twitter @BizMarkie.