Educational information, not medical advice — ask your doctor or midwife.
Silq is the leaf and stalk of Beta vulgaris, the plant sold today as chard or beet leaf. In Persian and Unani medicine it is a single drug used as a cooling, moistening food-medicine, mainly for constipation, dry skin and minor swelling. It is eaten cooked, drunk as a fresh leaf juice, or crushed into a poultice (a soft paste spread on the skin).
The one-line verdict: Silq has a long and respectable traditional record, but almost no modern human trials have tested the leaf itself. Traditional standing tells you that people have relied on something for centuries; it is not proof that it works, and that distinction is not repeated again below.
Treat Silq as a nutritious vegetable with a traditional reputation, not as a treatment for any disease. Most readers can eat it freely as food. A few groups, listed under who should avoid it, need to be careful.
Most of what Silq is thought to do is explained by ordinary food effects rather than any drug-like action. The leaves carry water, fibre, nitrates and minerals, which is why classical texts called them cooling and loosening.
Dietary nitrate from leafy plants is changed in the body to nitrite and then nitric oxide, a gas that relaxes blood vessels. That pathway is real and measurable. It has been studied mainly with beetroot juice from the root, not with chard leaf.
Unani theory describes Silq as a cold and moist drug that softens the bowel and soothes heat. That is a traditional framework for thinking about it, not a tested mechanism.
Most people take Silq simply as food: leaves and stalks boiled, steamed or dropped into soup. Boiling in plenty of water and pouring the water away lowers the oxalate load.
Traditional forms also include fresh leaf juice, a decoction (leaves simmered in water and strained) and a crushed-leaf poultice laid on irritated skin.
Dried leaf powders and capsules are sold online. They are not standardised, so the amount of nitrate, potassium and oxalate per dose varies a lot between brands.
Silq appears in Persian and Greco-Arabic medical writing as a common kitchen vegetable that doubled as a gentle medicine. Classical Unani authors grouped it with the cooling, moistening foods and used it chiefly to move the bowels.
The same plant gives us today's chard, beet greens and beetroot, all cultivated around the Mediterranean and Middle East for thousands of years. Its standing rests on long, wide culinary and household use rather than on any historical experiment.
See a doctor if constipation lasts more than two weeks, or if it comes with belly pain, vomiting, blood in the stool or unexplained weight loss.
Get medical help the same day if you have severe one-sided back or side pain that comes in waves, which can mean a kidney stone, or if you feel your heart fluttering, racing or skipping while taking potassium-rich food with kidney or blood pressure medicines.
Get emergency help if your lips, tongue or throat swell, or you find it hard to breathe or swallow.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
Reviewed by the HealisticMD editorial team How we grade evidence →
The published evidence for Silq is weak or absent. That usually means no controlled trial has tested it, not that a trial found it ineffective — the two are different, and we grade only what has been published.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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