Alfalfa: The Science
The science · Sprouts
Alfalfa
Alfalfa sprouts are mild and earthy. They contain isoflavones and plant sterols, and research is still building on what those mean at food-level amounts.
What the research shows
Alfalfa contains measurable isoflavones, led by biochanin A and formononetin, along with genistein and daidzein.
Review of published studiesJoolaei Ahranjani et al., Food Frontiers, 2025 · View study
Keep in mind: The review notes long-term safety data in people is limited.
Fresh alfalfa sprouts hold more phytoestrogens, plant sterols, and vitamin E-family compounds than dried sprouts; freeze-drying kept more than heat-drying.
Lab analysisMattioli et al., Journal of the Science of Food and Agriculture, 2019 · View study
Safety note: Alfalfa and clover sprouts contain L-canavanine, which peer-reviewed research has linked to lupus-like flares. If you have an autoimmune condition, a hormone-sensitive condition, or are pregnant, check with your clinician first.
How we cite: we only reference peer-reviewed studies, and we label each one by type. Lab and animal studies explain how a compound works; they do not show the same result in people. These fresh foods support a healthy lifestyle and are not intended to diagnose, treat, cure, or prevent any disease. Talk with your healthcare provider before starting a raw-sprout routine if you are pregnant, immunocompromised, or managing a medical condition.