How Much Fruit Is Too Much?

Have you been told to eat more fruit? There’s a good reason for that. “Whole fruits are a key recommendation for all healthy, balanced diets,” says Christopher Gardner, PhD, the director of nutrition studies at the Stanford University Prevention Research Center in California.

Fruit contains several vitamins, minerals, carbohydrates, fiber, and antioxidants needed for overall health.

Still, it’s possible to get too much of a good thing. Too much fruit can cause uncomfortable side effects. And, in some cases, may be risky for people with certain chronic conditions.

Here’s how much you need, what’s considered too much, and whether you should watch your intake.

• 1 cup of fresh, frozen, or canned fruit
• ½ cup of dried fruit
• 1 cup of 100 percent fruit juice

And, while fruit provides several nutrients key for overall health, it’s not possible to meet all your nutritional needs with fruit alone. “After meeting the recommended number of servings each day, consuming more than that can mean crowding out room to consume other important food groups, like vegetables, legumes, nuts and seeds,” Dr. Gardner says.

Sharon Palmer, RDN, a registered dietitian-nutritionist in Ojai, California, agrees: “If you’re consuming significantly more fruit than the USDA recommendations, it could be problematic.”

But there may be people who need to eat more fruit than this. For example, athletes often have greater nutritional needs than non-athletes. “If you’re a young male athlete, you may require twice as many calories from fruit as an older, sedentary woman,” Palmer notes. Ultra-marathoners, triathletes, and long-distance cyclists often snack on fruit during training or events, and some of their favorites include convenient options with fast-acting carbohydrates, such as bananas, dates, and oranges.

Palmer notes that some medical conditions may call for eating more fruit than recommended, too. For example, those with chronic constipation may be encouraged to eat more high-fiber fruits like kiwi, prunes, and pears. And people recovering from illness or surgery may want to consume more easy-to-digest, high-water, nutrient-rich foods like fruit.

Finally, people who follow plant-based diets may naturally eat more fruit to make up for animal foods missing from their diet.

Regardless of your other eating habits, consider that consuming significantly more than the recommended amount of fruits could result in excess calories or digestive issues.

But if eaten in excess, the fiber in fruit can also cause gastrointestinal (GI) symptoms, says Julia Zumpano, RD, a registered dietitian with Cleveland Clinic in Ohio. Potential symptoms include:

• Gas
• Bloating
• Abdominal cramps
• Heartburn
• Diarrhea
• Constipation

Blood sugar is another concern with high amounts of fruit. “Since carbohydrate foods have an impact on raising blood sugar, eating too much fruit may cause above-target blood sugar levels, which is an issue for those with diabetes,” says Toby Smithson, RDN, CDCES, a certified diabetes care and education specialist based in Hilton Head, South Carolina, and the senior manager of nutrition and wellness at the American Diabetes Association.

“In someone without diabetes, however, blood sugar levels will usually stay within range after eating fruit,” Smithson says.

While fruit is a nutrient-dense food that most people should be eating more of, some need to be careful not to eat too much.

People with GI issues, including IBS or inflammatory bowel disease (IBD, a group of conditions that cause chronic inflammation in the digestive tract), may struggle to digest fructose, a type of sugar found naturally in fruits. When poorly absorbed, fructose can lead to GI symptoms such as gas, bloating, diarrhea, and abdominal pain.

People with diabetes need to keep track of how many carbohydrates they consume at each meal and snack. Too many carbs, including those from fruit, can elevate blood sugar.

A few healthy lifestyle shifts can keep fruit intake under control. Here are some suggestions.

• Keep it whole. Focus on whole fruits and avoid fruit juice, which discards fiber and other important components during the juicing process, Gardner says. The fiber in whole fruits helps regulate blood sugar, promote fullness, and aid digestion.
• Add lean protein or healthy fat. “Combining a lean protein or healthy fat with a serving of fruit can help slow down the absorption of carbohydrates,” Smithson says. This may help prevent blood sugar from rising too quickly. A few examples include a small apple with 1 tablespoon (tbsp) of nut butter, a handful of grapes with cubed low-fat cheese, or a serving of blueberries and a handful of almonds.
• Estimate your serving size. “A serving is about the size of a tennis ball or one cup,” Zumpano says. Use this as a general guide to ensure you meet — but don’t exceed — your daily recommended servings of fruit.
• Limit dried fruit. “The drying process will make the fruit sweeter, so the portion size is smaller than a whole-fruit version,” Smithson says. One cup of whole fruit equals roughly a ½ cup of the dried version.
• Let the season guide you. Fruits that are grown in season are often cheaper and more nutritious than those grown out of season, Palmer says. That’s because fruit that’s picked when it’s ripe will retain more vitamins, minerals, and antioxidants. Even better, that fruit won’t undergo artificial ripening or be stored and shipped for a long time, which can reduce nutritional benefits.

• Fruit provides fiber, antioxidants, vitamins, and minerals, making it an important part of a healthy, balanced diet. But it’s possible to get too much of a good thing.
• The recommended daily serving of fruit is 1.5 to 2 cups for adult women and 2 to 2.5 cups for adult men. Significantly more than these amounts can cause digestive symptoms and spike blood sugar.
• People with GI conditions and diabetes should watch their fruit intake and be especially careful not to get too much.