Kidney Stone Risk
Beets contain naturally occurring compounds called oxalates. While most people do not need to worry about them, those who have had certain types of kidney stones (specifically calcium oxalate stones) may be advised to limit high-oxalate foods . Consuming excessive amounts of beets could contribute to the formation of kidney stones in susceptible individuals .
Blood Pressure Concerns
Because beets can significantly lower blood pressure, individuals who already have low blood pressure or those taking blood pressure-lowering medications should be cautious. Consuming beets in large amounts could potentially cause blood pressure to drop too low . It is advisable to consult with a healthcare provider before starting a beet regimen if you are on blood pressure medication .
Beeturia: Red Urine and Stool
A common and harmless side effect of eating beets is beeturia, a condition where urine and stool take on a pink or reddish color . This can be alarming if unexpected, but it is not dangerous. It occurs because the betalain pigments in beets are not fully broken down by the body and are excreted in urine and feces .
Gout Flare-Ups
For people with gout, a type of arthritis caused by high uric acid levels, consuming beets in large quantities may trigger flare-ups . Beets contain moderate levels of purines, which the body breaks down into uric acid . Those with gout should monitor their intake and consult a doctor if they notice any adverse effects.
Sugar Content
While beets are low in calories and have a low glycemic load (5 for a 100-gram serving), they do contain natural sugars—about 6 to 9 grams per cup . The fiber content helps slow down sugar absorption, keeping blood sugar levels balanced . However, individuals with diabetes should still be mindful of their beet consumption and monitor their blood sugar responses .
Interactions with Medications
Beets may interact with certain medications, particularly those metabolized by the liver. According to WebMD, beets might change how quickly the liver breaks down some medications, potentially altering their effects and side effects .
