When You Eat Too Many Grapes, This Is What Happens To You

Grapes are one of nature's most wholesome snacks. Full of vitamins and antioxidants, they boost immunity and maintain balance throughout the body (via WebMD). But you can always have too much of a good thing, and overconsuming grapes could come with some unpleasant side effects.

Grapes are easy to buy, transport, and eat, so they make a convenient addition to meals or between-meal snacks. Because they're so easy to eat, however, it's simple to overconsume them and pack away a lot more calories than you think you're getting. One cup of grapes, which is about 30 grapes, has just over 100 calories (via Livestrong). But if you're eating them straight out of the container without pre-measuring your portion, it's easy to put away a lot of grapes in a short amount of time.

Also remember that grapes are high in carbohydrates. That single-cup serving has about 27 grams of carbohydrates. So, if you munch through several cups of grapes, you'll be adding a lot more carbs to your diet than you may have planned for that day.

One cup of grapes contains about 1.5 grams of fiber. If you eat too many grapes at once, that fiber content is going to add up, which could lead to digestive distress and nausea. Too much fiber in the digestive tract can result in either constipation or diarrhea.

Some people who are taking certain medications need to avoid grapes due to the way they might interact with the drugs. Beta-blockers are prescribed for heart conditions and to regulate blood pressure. They cause potassium levels to rise in the body, however, so people taking them need to avoid potassium-rich foods like grapes (via Medical News Today. High potassium levels can also be dangerous in people with kidney damage.

People on blood thinners should also steer clear of grapes, as the compound resveratrol, found in grapes, may cause too much of an increase in the efficacy of the drug.

One thing to note is that non-organic grapes have been found to have high levels of pesticides. To avoid exposure, be sure to wash grapes thoroughly before eating, or purchase organic grapes to avoid this issue.