Does Too Much Kale Cause Kidney & Thyroid Problems?

Share this with a friend

Your Name
Recipient Email

3 Min Read

Curejoy Expert Dipti Mothay Explains:

Kidney stones, also known as renal lithiasis are small stone-like masses that form inside your kidneys when excess of urinary minerals are dissolved. Most kidney stones usually get expelled from the body in the urine stream, without causing any symptoms. But if the stones grow to the size of 2-3 millimeters they can cause obstruction of the ureter, and can be very painful to pass. Likewise problems with the thyroid include over-active thyroid, or hyperthyroidism, and under-active thyroid or hypothyroidism.

There are many factors that may contribute to kidney stone formation and thyroid problems. Kale which has been at the top of the healthy food list for some time may actually cause kidney stones and thyroid problems.

According to the Linus Pauling Institute, cruciferous vegetables like kale contain glucosinulates which yield goitrin, which has been linked to hypothyroidism. Also Kale and other leafy greens contain oxalates, which have been linked to kidney stones. Oxalate found in urine combines with calcium to form calcium-oxalate kidney stones. There are different types of kidney stones, but calcium-oxalate stones are the most common. If you have a high risk for kidney stones, your doctor may advise you to avoid or limit intake of foods that contains high amounts of oxalate.

Dietary guidelines for Kale to prevent kidney and thyroid problems:

– Cook Your Kale: Cooking kale or any other cruciferous vegetable lessens their goitrogenic properties.
– Using vitamins carefully: Avoid large doses of vitamin C, as your body may turn extra vitamin C into oxalate.
– Eat Seaweed: Kale on its own does not increase the risk of thyroid problems. A combination of factors such as iodine deficiency may lead to the problem. Adding seaweed or another iodine rich food to your diet is recommended.
– Vary your greens: If you’re going to eat kale one day choose a non-cruciferous, non-goitrogenic vegetable dish the next, like a simple cucumber and tomato salad, or beets.
– Drinking more fluids: Drinking at least 10 to 14 4-ounce glasses of fluid, preferably water, per day is recommended.
– Eating a healthful amount of calcium: Ideally, people should eat 1,200 milligrams of calcium each day, preferably derived from food such as dairy products
– Moderating consumption of certain foods: Consuming too much animal proteins and salt in your diet should be avoided.

Excessive consumption of kale might not be as good for us as we had previously thought. Hence we should keep in mind that even if a diet appears to be very good, it is only good for us when consumed in moderation.