Researchers in South Africa tested whether a traditional fermented grain drink called mageu could help new mothers have healthier digestive systems while breastfeeding. They compared mothers who drank fresh fermented mageu, store-bought pasteurized mageu, or no mageu at all for six weeks after giving birth. The study found that mothers drinking the fresh fermented version had more diverse and healthy gut bacteria, better nutrition, and different inflammation markers compared to those who didn’t drink it. These results suggest that this culturally important food may support both mother and baby’s health during the critical breastfeeding period.
The Quick Take
- What they studied: Whether drinking a traditional fermented grain drink called mageu could improve the health of new mothers’ digestive systems and overall nutrition while they’re breastfeeding
- Who participated: South African mothers who were between 4 and 10 weeks after giving birth. The study divided them into three groups: some drank fresh fermented mageu, some drank store-bought pasteurized mageu, and some didn’t drink mageu at all
- Key finding: Mothers who drank the fresh fermented mageu had more diverse and healthy gut bacteria compared to mothers who didn’t drink it. They also showed different patterns in inflammation markers and iron levels in their blood
- What it means for you: If you’re a breastfeeding mother, consuming fresh fermented grains like mageu may help your digestive health and potentially benefit your baby through breast milk. However, this is early research, and you should talk to your doctor before making major dietary changes
The Research Details
This was a randomized controlled trial, which is one of the strongest types of scientific studies. Researchers randomly assigned South African mothers into three equal groups: one group drank fresh fermented mageu (a live-culture version with active beneficial bacteria), another group drank store-bought pasteurized mageu (heated to kill bacteria), and a third group didn’t drink mageu at all. All mothers were between 4 and 10 weeks postpartum and were breastfeeding. The researchers collected information about what the mothers ate, tested their stool samples to look at gut bacteria, and measured various health markers in their blood from week 4 through week 15 after birth.
The study design was important because it allowed researchers to compare the effects of fresh fermented mageu versus pasteurized mageu versus no mageu. By randomly assigning mothers to groups, the researchers could be more confident that any differences they found were due to the mageu itself rather than other factors. The fact that they followed mothers over several weeks also helped them see how the effects changed over time.
This research matters because breastfeeding mothers need good nutrition to stay healthy and provide the best nutrition to their babies through breast milk. Understanding which traditional foods can support mother’s health is especially important in communities where these foods are already part of the culture. By studying mageu specifically, researchers can help mothers make informed choices about foods that are both culturally meaningful and scientifically beneficial.
This study was published in a respected scientific journal called The British Journal of Nutrition, which suggests it went through careful review. The study used randomization, which is a strong research method. However, the exact number of mothers who participated wasn’t specified in the abstract, which makes it harder to evaluate how reliable the results might be. The study also measured multiple health markers, which gives a more complete picture of effects. The fact that researchers looked at actual gut bacteria (not just symptoms) and used advanced testing methods strengthens the quality of the findings.
What the Results Show
The main finding was that mothers who drank fresh fermented mageu had more diverse gut bacteria compared to mothers who didn’t drink mageu. Gut diversity is considered a sign of a healthy digestive system. This increase in diversity was measured between weeks 4 and 10 after birth, which is an important time for both mother and baby’s health.
Another important finding was that mothers drinking fresh fermented mageu had lower levels of ferritin (a protein that stores iron) in their blood at week 10 compared to mothers who didn’t drink mageu. While this might sound negative, the researchers noted that this could actually be a positive sign related to how the body is using iron more efficiently.
The study also found that mothers who consumed any type of mageu (both fresh and store-bought) ate more plant-based protein than mothers who didn’t drink mageu. This is important because plant protein is a valuable nutrient for breastfeeding mothers.
When researchers looked at the overall patterns of bacteria, inflammation markers, and nutrition in the mothers’ bodies, they found that mageu consumption created distinct health signatures. Specifically, several markers stood out: IL-6 (a substance related to inflammation), ferritin (iron storage), soluble transferrin receptor (related to iron use), and a specific type of bacteria called Eubacterium hallii. These findings suggest that mageu affects multiple body systems, not just one area.
This research builds on growing evidence that fermented foods can support gut health. Previous studies have shown that fermented foods contain beneficial bacteria that can improve digestive health in general populations. However, this appears to be one of the first studies specifically looking at fermented grains in breastfeeding mothers in an African context. The findings align with traditional knowledge in Southern African communities where mageu has been consumed for generations, suggesting that traditional foods may have real scientific benefits.
The study has several limitations to keep in mind. First, the exact number of mothers who participated wasn’t clearly stated, which makes it harder to know how confident we should be in the results. Second, the study only followed mothers for about 11 weeks, so we don’t know if the benefits continue longer term. Third, the study was done in South Africa, so results might be different in other populations with different genetics and diets. Finally, while the study showed associations between mageu and health markers, it doesn’t prove that mageu directly caused all the changes—other factors in the mothers’ lives could have played a role.
The Bottom Line
Based on this research, breastfeeding mothers, particularly those in Southern African communities where mageu is culturally relevant, may consider consuming fresh fermented mageu as part of a balanced diet. The evidence suggests moderate confidence that it could support gut health. However, this is early research, and mothers should not rely on it as a replacement for medical advice. Mothers with specific health conditions, iron deficiency concerns, or those taking medications should consult their healthcare provider before making dietary changes.
This research is most relevant to breastfeeding mothers, particularly in Southern Africa where mageu is a traditional food. It may also interest healthcare providers who work with postpartum mothers, nutritionists, and researchers studying fermented foods. Mothers with iron deficiency should be especially cautious and discuss mageu consumption with their doctor, since the study showed changes in iron-related markers. Mothers who are not breastfeeding or who are not in the postpartum period should not assume these findings apply to them.
Based on this study, changes in gut bacteria diversity appeared within 6 weeks of consuming fresh fermented mageu. However, realistic expectations are important: gut health improvements typically take several weeks to become noticeable, and individual results will vary. Some mothers might notice improved digestion or energy within 2-4 weeks, while others might take longer. The study only followed mothers for 11 weeks, so we don’t know about longer-term benefits.
Want to Apply This Research?
- Track daily mageu consumption (yes/no and type: fresh fermented vs. store-bought) alongside digestive symptoms (bloating, regularity, comfort level on a 1-10 scale) and energy levels. Record this for at least 4 weeks to see if patterns emerge
- If you’re a breastfeeding mother interested in trying this, start by adding one serving of fresh fermented mageu to your daily routine (about 200-250ml). Track how you feel, your digestion, and energy levels. Gradually increase to 2 servings daily if tolerated well. Make sure to choose fresh fermented versions rather than pasteurized store-bought versions based on this study’s findings
- Keep a simple weekly log noting: (1) servings of mageu consumed, (2) digestive comfort and regularity, (3) energy and mood levels, (4) any changes in breastfeeding experience. After 4-6 weeks, review your log to see if you notice improvements. If you have access to healthcare, consider asking your provider about checking iron levels if you have concerns
This research summary is for educational purposes only and should not replace professional medical advice. Breastfeeding mothers should consult with their healthcare provider before making significant dietary changes, especially if they have iron deficiency, are taking medications, or have other health conditions. While this study suggests potential benefits of fermented mageu for postpartum mothers, individual results may vary. Mothers should not use this information to diagnose or treat any health condition. Always seek guidance from a qualified healthcare professional regarding nutrition and health during the postpartum and breastfeeding period.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.