According to researchers, blood pressure in people diagnosed with diabetes may be over-treated in many cases.

"Appropriately treating blood pressure in people with diabetes is extremely important, and good blood pressure control should still be the goal to reduce risk of heart attack, stroke and other conditions," said Dr. Eve Kerr, lead author the study and director of the Center for Clinical Management Research at the VA Ann Arbor Healthcare System.

According to researchers, modern medicine should offer a more personalized way of controlling blood pressure than using treatments that are not needed by the patient.

"But just treating to a BP target in all patients may result in over-treating and harming some patients because their blood pressures actually fall too low. We need to find better ways to measure and incentivize appropriate BP management to make sure that patients who need aggressive treatment are getting it, and to decrease the rate of inappropriate overtreatment," she added.

The research showed that there was a very aggressive way of controlling blood pressure with 94 percent getting appropriate treatment.

The study was based on the medical data of 977,282 people from U.S. Department of Veterans Affairs who had diabetes mellitus.

"We need to have performance measures that focus on appropriate treatment, and if patients are being treated aggressively but still don't quite get to a target control value we need to allow that to count as appropriate care," she said.

"It is essential that we continue to monitor and focus on BP control among patients with diabetes, but we also have to realize that when BP starts to dip too low, it may be time to decrease treatment," she concluded.

The paper is published online in the Archives of Internal Medicine.

Another study from Yale, also published in same journal, suggests that aggressively controlling blood glucose level in diabetes patients may not decrease chances of kidney failure.

According to this study, glycemic control might offer benefits but does not result in protection against kidney failure.