Research from Harvard University indicates that gluten may help lower the risk of developing Type 2 diabetes.
Study leader Dr Geng Zong said: "We wanted to determine if gluten consumption will affect health in people with no apparent medical reasons to avoid gluten".
The investigators found that study participants who ate the least amount of gluten had a somewhat higher risk of developing diabetes over time.
Researchers from Harvard University have found a link between gluten-free diets and type 2 diabetes.
However, some estimates put the proportion of adults adhering to gluten-free diets in the United Kingdom alone at more than 12 per cent.
Researchers found most participants had gluten intake below 12 grams per day, and within that range, people who ate the most gluten had lower risk of developing type 2 diabetes during the 30 years of follow-up.
The study was presented at the American Heart Association's Epidemiology and Prevention and Lifestyle and Cardiometabolic Health 2017 Scientific Sessions.
Gluten-free diets might be one of the most popular diets, with celebrity advocates such as Gwenyth Paltrow and Kim Kardashian, but a new study says it could be bad for your health.
Researchers analyzed information from three large, long-term studies-the Nurses' Health Study I and II, and the Health Professionals Follow-up Study-involving 199,794 study participants over a 30-year period.
It's worth noting that most of the participants took part in the study before gluten-free diets became popular, so more research is needed to look into the effects on gluten abstainers.
"Gluten-free foods often have less dietary fibre and other micronutrients. making them less nutritious", he said.
"It's not ideal to cut out certain complete food groups, there's nothing potentially an issue with gluten in a healthy gut".
It is the trendiest dietary fad, touted as a cure for everything from irritable bowels to depression, but research now suggests that going gluten-free could increase the risk of diabetes.
The study does not prove that limiting gluten somehow causes diabetes, according to Lauri Wright, a spokeswoman for the Academy of Nutrition and Dietetics.
The diet, for some, has become more of a trend over recent years - people hoping to lose weight in the process.
Those who have a sensitivity to the protein are often diagnosed with celiac disease.
"What is the real reason you're excluding gluten?"
Additionally, the researchers did not include data from those who have eliminated gluten from their diet completely.