Purslane (Portulaca oleracea) is often dismissed as an ordinary garden weed, yet it has been eaten as a leafy vegetable for centuries in many parts of the Mediterranean, Europe and Asia.
Its nutritional profile has attracted scientific interest because it provides several vitamins, minerals, antioxidants and an unusual amount of plant-based omega-3 fatty acids for a leafy vegetable.
But while purslane can be a nutritious addition to the diet, claims that it can “cure everything” go far beyond what scientific evidence currently supports.
ALA is an essential omega-3 fatty acid that the body cannot make on its own. Research comparing purslane with other leafy vegetables has found particularly high levels of ALA in its leaves.
That doesn’t make purslane a replacement for medical treatment or other established sources of omega-3s,
but it does make it an interesting plant-based food.
These minerals play established roles in normal muscle, nerve and bone function.
Studies examining its nutritional composition have confirmed that purslane can be a useful source of antioxidants as part of a varied diet.
However, eating an antioxidant-rich food shouldn’t be confused with treating a specific disease.
A systematic review and meta-analysis of randomized trials found that purslane consumption was associated with reductionsin
triglycerides and total cholesterol and an increase in HDL cholesterol. It did not show a significant reduction in LDL cholesterol.
A newer umbrella review also found improvements in some metabolic and cardiovascular biomarkers, but emphasized that much of the evidence was of low or very low certainty and that larger, longer-term trials are needed.
So purslane may fit into a heart-healthy diet, but it shouldn’t replace cholesterol or blood-pressure treatment prescribed by a healthcare professional.
One systematic review found an improvement in fasting blood glucose, but didn’t find meaningful improvements in several other measurements, including HbA1c. The researchers emphasized that relatively few trials were available.
For people with diabetes, purslane should therefore be viewed as a food—not a substitute for diabetes medication, glucose monitoring or an established dietary plan.
is where many viral articles become misleading.
There isn’t good clinical evidence that eating purslane detoxifies the liver or cleanses the kidneys. Your liver and kidneys already perform essential metabolic and filtration functions.
More importantly, purslane contains relatively high amounts of oxalate. High oxalate intake can be problematic for people susceptible to certain kidney stones.
There have even been published case reports of acute oxalate-related kidney injury following high purslane consumption, although case reports don’t tell us how common this is.
Anyone with kidney disease or a history of calcium-oxalate stones should therefore discuss frequent or unusually large purslane consumption with a healthcare professional.
Can It Improve Eyesight?
Purslane contains carotenoids and other nutrients involved in normal health, but this doesn’t mean eating it will restore lost eyesight or treat eye disease.
A balanced diet containing a variety of vegetables is beneficial for overall health, including eye health,but significant
changes in vision require proper evaluation.
How Can You Eat Purslane?
Fresh purslane has slightly succulent leaves and a mildly tangy flavor. Depending on local culinary traditions, it can be incorporated into salads, soups and cooked vegetable dishes.
Treat it like a nutritious vegetable rather than a medicine.
The Bottom Line
Purslane deserves attention for a much better reason than the claim that it “cures everything.”
It’s a nutrient-dense leafy plant containing ALA omega-3 fatty acids, potassium, magnesium, calcium, vitamin C, vitamin E and carotenoids. Research also suggests potentially beneficial effects on some metabolic markers, although stronger clinical evidence is still needed.
It can be part of a healthy diet, but it doesn’t replace medication or proven treatments for kidney, liver, heart, eye or other diseases.
This article is for general informational purposes and is not a substitute for professional medical advice.
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