Baseball legend talks about off-field battle with diabetes

SAN FRANCISCO (KGO) -- Baseball legend Lou Brock was in San Francisco Thursday to talk about a personal battle he faces every day. Brock suffers from type 2 diabetes.

He was at Dignity Health Saint Mary's Medical Center as part of World Diabetes Day. Brock talked about controlling his blood sugar and urged patients to get medical advice.

Half of diabetes patients don't know they have the disease.

"The importance of listening to the medical professionals. We have a tendency to get hand-me-down information, from grandma and grandpa, and it doesn't work," said Brock.

Diabetes patients also got their questions answered about what they can and can't eat to avoid spikes in their blood sugar.

It is estimated that in 20 years, one in ten people in the world will suffer from diabetes.

Brock played for the Chicago Cubs and the St. Louis Cardinals.