There have been a number of studies analyzing how aronia berries affect people with diabetes. One of them concluded that consumption of the “super berries” would not increase blood sugar levels and it can even lower them.
Aronia can be very beneficial for people who want to prevent diabetes and it can also help people manage diabetes - associated conditions. Another study (Simeonov et al, 2002) conducted at the Medical University in Plovdiv, Bulgaria, found that aronia juice without sugar added (artificially sweetened) was “a valuable adjunct” to treating patients with diabetes.
An animal modeled study in 2007 (Valcheva-Kuzmanova S et al), conducted by the Department of Preclinical Pharmacology and Biochemistry, Medical University, Varna, Bulgaria was conducted on diabetic rats. The outcome showed that the use of Aronia melanocarpa fruit juice might be useful in the prevention and control of diabetes and in the complications of diabetes.
Research seems to support the anti-diabetic effects of aronia. A 2015 study in rats found that an aronia extract helped to boost the immune system and reduce inflammation related to diabetes. Read full article here.
A 2012 study, looking at insulin-resistant rats, found that an aronia extract fought insulin resistance on several levels. This result potentially makes it an effective aid in preventing diabetes from developing.
A 2016 study found that blood glucose levels and obesity were positively affected by aronia. Read full article here.