Rye's nutrition, health effects and sustainable food role
What it found
Rye is rich in dietary fiber and bioactive compounds, and eating it is linked to better gut, heart, blood sugar and bone health.
The authors say it is also a resilient, low-impact crop for sustainable diets.
What they found
Studies in people
Gut and bowel health
Rye fiber acts as a prebiotic, feeding beneficial gut bacteria and increasing short-chain fatty acids. Clinical evidence indicates rye can help prevent constipation and improve bowel regularity.
Weight and satiety
Rye-based foods have been reported to be more filling than wheat-based products. Eating rye products is associated with lower body weight, likely due to their higher fiber content.
Studies in people and animals
Heart and blood sugar
Whole-grain rye is linked to improved lipid profiles, lower blood pressure and less inflammation. Studies report lower blood sugar and insulin responses after rye bread compared with wheat bread, and higher whole-grain intake is linked to a lower risk of type 2 diabetes.
Bone health
Rye stands out among cereals for its higher calcium, magnesium and phosphorus content, minerals important for bone density and strength. Whole-grain diets are linked to higher bone mineral density.
Other findings
Nutrient profile
Rye has more dietary fiber than other cereals and contains arabinoxylans, fructans and beta-glucans. It also provides vitamins, minerals and phenolic compounds such as ferulic acid and alkylresorcinols.
Antinutrients and toxins
Rye contains antinutrients such as phytates and trypsin inhibitors, and can be contaminated with ergot alkaloids and mycotoxins. Processing methods like soaking, germination, fermentation and extrusion can reduce these compounds.
What the authors conclude
“Rye is a highly versatile and sustainable cereal crop with exceptional nutritional, ecological, and economic value.”
Also in their conclusions
- They conclude that rye is a highly versatile and sustainable cereal with exceptional nutritional, ecological and economic value.
- They advise that integrating rye alongside protein-rich legumes into food systems could help reduce greenhouse gas emissions and improve dietary sustainability.
- They say supportive policies, nutritional education and culinary training are essential to increase rye consumption and acceptance.
How it was done
The authors wanted to update earlier reviews with recent findings on rye's role in human health, food security and sustainability, and to highlight new evidence on its functional properties and place in plant-based diets.
They pulled together and reviewed existing research on rye's nutritional makeup, health effects, antinutrients and toxins, food products, and environmental and economic aspects. They did not run new experiments or trials.
What it can’t tell you
- This is a review of existing studies, not a new experiment. It cannot prove that rye itself causes the health effects seen in the studies it describes.
- Many of the health links come from studies that follow people over time or compare groups, which can show a link but not a cause.
- Some findings come from lab tests or animal studies, so they may not apply to people.
Who paid
- Conflicts
- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
- Authors work at
- Kaunas University of Technology, Lithuania; University of Malta, Malta; Estonian University of Life Sciences, Estonia
The paper
- Title
- Rye ( Secale cereale L.) revisited-nutritional composition, functional benefits, and role in sustainable diets
- Type
- ReviewThe authors read earlier studies and describe what they found. It isn’t a new study.
- Evidence
- Studies in people · animals · lab
- Summarised from
- Full text
- Licence
- CC BY. Words in quotation marks are the authors’; the rest is our summary.
- Cite
- Zadeike D, Copperstone C, Aleksandrova O, et al (2025). Rye ( Secale cereale L.) revisited-nutritional composition, functional benefits, and role in sustainable diets. Frontiers in nutrition. doi:10.3389/fnut.2025.1666455Free full textPubMed 41220711DOI
Summary written 30 Sep 2026. Check it against the paper before it changes what you eat. How we summarise papers · Report an error