But that doesn’t mean that they need to be tossed in the trash. And its leaves are spectacularly poisonous. Some animals such as goats and pigs, have also been poisoned by ingesting these leaves. Symptoms of toxicity include mild gastrointestinal symptoms, as well as more serious problems, such as kidney stones and kidney failure. Get…, This is an article about oxalate and its health effects. New growth is fine to eat. Rhubarb leaves poisoning occurs when someone eats pieces of leaves from the rhubarb plant. Although reports of poisoning are rare, it’s best to avoid eating rhubarb leaves, particularly if you have any condition that increases your risk of kidney stones. All You Need to Know, Debra Sullivan, Ph.D., MSN, R.N., CNE, COI, What You Need to Know About Calcium Oxalate Crystals. ), with adult supervision. In: Ryan ET, Hill DR, Solomon T, Aaronson NE, Endy TP, eds. However, there are cases of people developing kidney damage from eating high amounts of rhubarb stems, which also contain oxalic acid (7). Is Your Rhubarb "Stringy" when you cut it? CONTAINER GARDENING - Can Rhubarb be Grown in Containers/Pots? It has long fibrous stalks that range from dark red to pale green. Afterward, the bowl or pitcher will contain a rhubarb leaf infusion. Meanwhile, its large dark green leaves look a bit like spinach and are not usually eaten due to fears about them being poisonous or inedible. So is this sour vegetable good or bad for you? Rhubarb is often sold with some leaves on the stalks; simply trim them off and discard. Rhubarb contains approximately 570–1,900 mg of oxalate per 3.5 ounces (100 grams). Rhubarb leaves contain poisonous substances, including oxalic acid, which is a nephrotoxic (damaging or destructive to the kidneys) and corrosive acid that is present in many plants 2). - I don't know how I did without a knife sharpener for so long! You would have to eat several pounds of rhubarb leaves to reach a toxic level—so don’t feel like you need to toss the whole batch if tiny leaf scraps end up in your rhubarb muffins.But do avoid eating the leaves … Rhubarb leaves – 0.5 g/100 g. Spinach – 0.97 g/100 g. If rhubarb leaves are too toxic to eat because of the oxalic acid, why do we eat these other vegetables? Here are additional pages within this website that provide helpful information about growing rhubarb in the home garden (or use the website's navigation bars): ORGANIC PESTICIDE RECIPES and Information. The level of oxalic acid is so high in the leaves that they are poisonous and cannot be eaten. concern. acid is broken down, diluted and pH balanced quite quickly, this is not a However, since the oxalic Oregon State University Horticulture staff also support the recommendation to not eat rhubarb leaves because they are toxic to humans. The edible portion of rhubarb, the stalks, contain only a very low concentrate of oxalates, and are very safe to eat. Rhubarb leaves contain oxalic acid, which can cause build up in the organs and lead to kidney stones and kidney failure when consumed in high amounts. Rhubarb (Rheum rhabarbarum) – In the early spring the leaves begin to unfurl.There is a reddish cast to the veining of the leaves which will give way to the red stalk we are used to using in pies. Too much oxalate in the body can lead to a condition known as hyperoxaluria, which is when excess oxalate is excreted in the urine. The level of oxalic acid is so high in the leaves that they are poisonous and cannot be eaten. Make a Natural Insecticide with the Leaves, *FTC Disclosure: As an Amazon Associate I earn from qualifying, Interestingly, the leaves of rhubarb can be used to make a, A Recipe for Natural Insecticide Using Rhubarb Leaves, this free rhubarb resource website alive. However, lethal amounts have also been reported at lower intake levels (2, 5, 6). Related content. Since humans and animals do not normally ingest matter from a compost, During World War I, people were advised to eat rhubarb leaves as a substitute for vegetables that were unavailable at the time, leading to reports of several poisonings and deaths (3).

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