The Study
Urine and Dried Blood Spots From Children and Pregnant Women Reveal Phytochemicals, Amino Acids, and Carnitine Metabolites as Cowpea Consumption Biomarkers.
This study found that when kids and moms in Ghana ate cowpeas, their pee and blood had some new chemicals in them. But it doesn't prove the cowpeas made them healthier — it just shows a change happened after they ate them.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
Scientists gave kids and pregnant women cowpeas (a type of pea) for two weeks and checked their pee and tiny blood spots to see what changed in their bodies.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 544 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes—these chemicals can now be used as easy-to-detect signs that someone ate cowpeas, even without asking them.
- 2After eating cowpeas for 15 days, key chemicals like S-methylcysteine and acetylcarnitine went up in both pee and blood spots.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Molecular nutrition & food research
Year
2024
Authors
M. Tipton, Bridget A. Baxter, Brigitte A Pfluger, Brooke Sayre-Chavez, M. Muñoz‐Amatriaín, C. Broeckling, Issah Shani, M. Steiner-Asiedu, Mark J. Manary, Elizabeth P. Ryan
Related Content
Claims (6)
Legumes contain protein and fiber that human bodies and gut bacteria use together.
Children aged 9–21 months and pregnant women in Northern Ghana who ate cowpeas for 15 days showed higher levels of specific metabolites in their urine and dried blood spots, including tiglylcarnitine, acetylcarnitine, S-methylcysteine, S-methylcysteine sulfoxide, mansouramycin C, and proline betaine.
After eating cowpeas for 15 days, children and pregnant women show higher levels of S-methylcysteine and S-methylcysteine sulfoxide in their urine, and these substances can be accurately measured using targeted metabolomics techniques.
Eating cowpeas for 15 days is linked to measurable changes in carnitine-related metabolites, such as tiglylcarnitine and acetylcarnitine, in the urine and dried blood spots of children and pregnant women.
After eating cowpeas for 15 days, children and pregnant women show higher levels of three specific compounds—mansouramycin C, proline betaine, and cis-urocanate—in their urine and dried blood spots.
Dried blood spots and urine samples can identify specific chemical markers from cowpea consumption, allowing dietary exposure to be tracked without invasive procedures in areas with limited medical resources.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.