Skip Nav
Bodyweight Exercises
35 Plank Variations That Will Strengthen and Tone Every Inch of Your Body
Healthy Recipes
18 Healthy Dinners That Are 5 Ingredients or Less
Sleep
The Perfect Nap Length (and Why You Need a Nap Daily)

What Causes "Spinach Teeth"

Why Does Spinach Make My Teeth Feel Funky?

Do you ever eat a fresh spinach salad and find your teeth feeling strange and chalky? You're not alone. "Spinach teeth" is caused by the high quantities of oxalic acid found in spinach. The oxalate crystals leak out from spinach as you chew, and these crystals coat the teeth, which results in that gritty feeling.

And it doesn't just come from spinach! Rhubarb, beets, kale, and chocolate are high in oxalic acid as well. Beyond that strange dental sensation, this acid increase your risk of oxalate stones in the kidneys, so people with a predisposition for such issues should steer clear of eating large amounts of spinach.

The oxalic acid contained in spinach can also prevent your body from absorbing iron. To improve iron absorption, spinach should be eaten with foods that contain vitamin C. So the next time you're chowing down on some cooked spinach, be sure to squeeze a little fresh lemon on top!

Image Source: Thinkstock
Why Do I Feel Bloated?
High-Fiber Smoothie Recipes
Healthy Pumpkin Recipes
Are Naps Bad For You?
From Our Partners
Latest Fitness
All the Latest From Ryan Reynolds