However, for the 27-year-old, it wasn't just as simple as a diagnosis.
"I was very close to a coma," he told Cigar Aficionado in a recent interview. "Like a day away, if I hadn’t gone to the hospital."
At just 13, following a dramatic weight loss and a sudden urge for soft drinks, Jonas' parents took him to a hospital. That's when doctors first diagnosed him with the condition. At first, the Jumanji star feared the condition would be a burden on him for the rest of his life: "I kept asking my parents — am I going to be okay? I was just so concerned that it was going to limit my ability to do all the things I wanted to do. I was very scared — it’s a big life change."
However, "I found out very quickly it’s a very manageable disease as long as you’re really diligent."
Jonas' condition isn't typically brought on by lifestyle choices such as poor eating but rather genes. Type 1 diabetes is characterised by irregularly high levels of glucose in the blood, diabetes either decreases the body’s ability to produce insulin, the hormone responsible for glucose breakdown, or inhibits the body’s ability to use it properly.
Managing type 1 diabetes usually includes a sticking to a healthy lifestyle with a focus on a diet and taking insulin when required.