Lipid fingerprints of Indian millets

Indian millets are a staple for the country’s population of over a billion. They are also gaining global popularity with rising exports and a reputation as a climate-resilient crop. Now, new research shows that their nutritional value includes a rich diversity of lipids, including a previously undetected group that may offer potential health benefits.

Lipids are essential nutrients that play a critical role in metabolism and overall health. Using advanced lipidomic technologies, researchers analyzed 59 varieties of Indian millets and identified 219 types of lipid molecules across them. Among these were fatty acid esters of hydroxy fatty acids, a class of bioactive lipids previously linked to anti-diabetic and anti-inflammatory effects.

“Different millet varieties show strikingly distinct ‘lipid fingerprints,’” notes Siddabasave Gowda, lead author of the study at Hokkaido University. “Some stood out for their superior nutritional profiles—particularly foxtail, finger, and little millet for supporting heart health and blood glucose regulation.” 

The new findings suggest that Indian millets could serve as an important dietary source of functional molecules with therapeutic potential. They are not just a sustainable crop, the study suggests that they could also be a health-promoting food group that may help address the rising rates of cardiovascular disease and diabetes worldwide. 

“Ultimately, our goal is to incorporate lipid-aware quality metrics into millet value chains,” Gowda says, “supporting the development of innovative functional foods aligned with global nutrition security goals.”