These 5 Greens Are the Greatest Sources of Prebiotics, Research Finds

Because the significance of intestine well being good points traction within the discipline of diet, a brand new research has uncovered the precise meals that supply the best prebiotic content material. The analysis additionally sheds gentle on the advantages of consuming prebiotics to keep up a wholesome intestine microbiome. 

Introduced at Diet 2023, the flagship assembly of the American Society for Diet, the research estimated the prebiotic content material of 1000’s of meals varieties utilizing present literature, highlighting the meals with the best prebiotic content material. 

Prebiotics, a kind of fiber present in sure plant-based meals, have been proven to stimulate helpful micro organism within the intestine, selling general well-being.


These meals are usually not solely helpful for intestine microbes but in addition wealthy in fiber, a necessary nutrient missing within the diets of many Individuals.

“Consuming prebiotic dense meals has been indicated by earlier analysis to profit well being,” Cassandra Boyd, a grasp’s pupil at San José State College who performed the analysis with Assistant Professor John Gieng, PhD, stated in a press release.

“Consuming in a approach that promotes microbiome wellness whereas growing fiber consumption could also be extra attainable and accessible than you assume.”

Prebiotics versus probiotics

The excellence between prebiotics and probiotics is essential to understanding their position in intestine well being. Prebiotics are meals for the microbiome, whereas probiotics include dwell microorganisms. Each can positively influence intestine well being however operate in a different way.

Prior research have linked increased prebiotic consumption to improved blood glucose regulation, enhanced mineral absorption (comparable to calcium), and markers of higher digestive and immune operate. Though present dietary pointers don’t specify a really helpful day by day allowance for prebiotics, the Worldwide Scientific Affiliation for Probiotics and Prebiotics suggests an consumption of 5 grams per day.


To conduct the research, the researchers analyzed the prebiotic content material of 8,690 meals utilizing the Meals and Nutrient Database for Dietary Research, a extensively used useful resource in diet and well being analysis. They discovered that about 37 % of the meals within the database contained prebiotics. The highest prebiotic-rich meals, together with dandelion greens, Jerusalem artichoke, garlic, leeks, and onions, contained round 100 to 240 milligrams of prebiotics per gram of meals (mg/g). 

Different meals with notable prebiotic content material included onion rings, creamed onions, cowpeas, asparagus, and Kellogg’s All-Bran cereal, every containing roughly 50 to 60 mg/g.

“The findings from our preliminary literature overview counsel that onions and associated meals include a number of types of prebiotics, resulting in a bigger complete prebiotic content material,” Boyd stated. 

“A number of types of onions and associated meals seem in a wide range of dishes as each flavoring and foremost components. These meals are generally consumed by Individuals and thus can be a possible goal for individuals to extend their prebiotic consumption.”

Primarily based on the staff’s findings, Boyd stated an individual would want to devour roughly half of a small (4-ounce) onion to get 5 grams of prebiotics.

And, notably, wheat-containing objects ranked decrease on the checklist, whereas meals with little to no prebiotic content material had been animal merchandise comparable to dairy merchandise, eggs, and meats.


The researchers hope that their research will lay the muse for assessing the well being impacts of prebiotics and shaping future dietary pointers. Nevertheless, they pressured the necessity for additional analysis to know how cooking impacts prebiotic content material and to raised assess meals containing a number of components.

Plant protein for higher intestine well being

As intestine well being continues to realize prominence within the discipline of diet, the findings from this research might pave the best way for extra personalised and efficient dietary suggestions—and the significance of consuming plant-based meals—to help general well-being and a wholesome intestine microbiome. 

One other research printed within the scientific journal Proceedings of the Nationwide Academy of Sciences discovered {that a} particular carbohydrate connected to plant proteins is a prebiotic meals supply for the micro organism in our intestine. 

VegNews.VeganProtein.sveta_zarzamoraSveta Zarzamora

Whereas fruit and greens are one of the best supply of vitamins for a wholesome intestine microbiome (the gathering of microbes that naturally dwell inside us), the research found {that a} species of intestine microbes use plant N-glycans—a kind of complicated carbohydrate present in plant meals—as vitamins.

“The intestine microbiome is an extremely necessary characteristic for human well being, and this discovering will allow us to raised perceive the microbiome,” Lucy Crouch, the research’s lead writer, stated in a press release. “By figuring out the actual enzymes that these microbes use to digest their meals, we will take into account how future diets will be developed that promote a wholesome intestine, and because of this enhance our basic well being.”

For the most recent vegan information, learn: