One study that caught Robinson’s eye was research done on a group of overweight men in which half took the “apple a day” adage literally, adding a Golden Delicious apple to their daily diet to see if it would improve their health. The results were shocking: The apple-eaters actually had higher levels of LDL cholesterol and triglycerides at the end of the study, making them actually more at risk for heart disease than they had been at the start. The explanation was the kind of apple they used: The Golden Delicious variety has such high sugar content and is so low in phytonutrients, that eating one daily may have actually been detrimental to the health of the study participants.
The bad news is that some apples are less healthy than others. Golden Delicious, Pink Lady, Elf Star, Empire and Ginger Gold apples are all varieties that have high levels of sugar and few antioxidants, according to Robinson. Yes, they’re still better than a candy bar – but not by much.
Now for the good news: Some of the healthiest apples available are right under your own nose (we'll get to that in a minute), and there are standard guidelines for choosing wisely. Shopping at a farmer’s market will widen your options when it comes to varieties, but it will also guarantee you a recently-harvested apple. “All apples store well – commercial growers especially know how to keep them crisp,” says Robinson, “but the ones that are fresh-picked will always have more antioxidants than ones that have been stored.” Another tip; go organic all the way. “The skin of an apple has 90% of the pesticides, but 50% of the nutrients,” says Robinson, which is why apples are the one fruit you should always buy organic and never bother to peel.
Looking for the best of the bunch? Choose from our list of apple all-stars.