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Why Certain Fruits Don't Mix

This fitness expert thinks you should follow the laws of food combining. Here's why.

Acid, sub-acid, sweet. If these aren’t terms you generally think of when picking out your pomegranates, papayas, and persimmons then you may need a lesson in how you pick and pair the fruits you eat.

Fruit typing is part of the overall concept of food combining, which follows the thinking that foods digest at different rates and ingesting an improper mix of foods can cause fermentation within the digestive system, slowing transit time and leading to bloating and possible bacterial imbalances.

The basic rules: Fruits should be consumed alone on an empty stomach; starches with cooked non-starchy vegetables; flesh proteins and dairy with cooked non-starchy vegetables; and nuts and seeds with raw vegetables.

“Proper food combining puts less effort and strain on our digestive system and faster, easier digestion increases the bioavailability of food,” says Mark Hendricks, group fitness manager at Toronto's Bay Street Club, who follows the protocol himself and advises clients to do the same. “We want our bodies to utilize the nutrients we ingest and this assists in the process and leads to healthy elimination as well.”

As a protocol, it can be particularly beneficial in helping to heal a digestive tract already compromised by an imbalance of flora, notes nutritionist Haylie Pomroy, author of the Fast Metabolism Diet and Fast Metabolism Diet Cookbook. But it’s a restrictive way to eat, nixing snack ideas like an apple with almond butter (a nutritionist favorite), all juice-smoothies that blend veggies with fruit, and arguably every unmodified restaurant meal.

Fruit typing, however, is an easy way to dip your toe into the idea and reap some of the benefits, Hendricks says. Here, his tips: