By Taylor the Kinesiologist
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November 27, 2023
Around 20 years ago, something odd occurred: Iceberg lettuce started appearing on “ foods to avoid ” lists. Yes, you read that correctly. Refreshing, crunchy, near zero-calorie iceberg lettuce made it onto the list. Websites proclaimed that it had “ zero nutritional value ” (which is completely false) and that you should always eat baby spinach instead. (This was before the kale revolution, by the way) This was without knowing whether or not you actually enjoyed baby spinach. Which just goes to show: Those universal “ foods to avoid ” lists? They are nearly always a terrible idea. (Well, I suppose things like poisonous foods should appear on these lists at least!) Now let’s take things one step further, and take a look at why someone may choose iceberg lettuce over kale, the reigning champion of leafy green superfoods (sorry, baby spinach!). To be completely transparent, kale does beat iceberg lettuce in a head-to-head comparison of nutritional value. Kale is especially rich in vitamins A, C, & K, and also several disease-fighting compounds like quercetin, lutein, zeaxanthin, & sulforaphane. However, that doesn’t mean iceberg lettuce is completely devoid of nutrients. It’s considered a great source of vitamin K (though it does have much less than kale), and it is also rich in apigenin, a phytochemical which thought to be protective against cancer . Here’s where context comes in. When you take a look beyond the nutrition label, there are other more important factors worth considering. Iceberg lettuce might be the better choice if you… - Are more likely to eat a salad if you use it as your base - Can only stomach kale with an excessive amount salad dressing or oil - Will gladly eat a large quantity of it, but can only manage a couple of bites of kale - Are looking for a little extra crunch in your meal - Want more volume with few calories and lots of water, helping you feel more satiated - Are trying to increase your veggie intake and iceberg lettuce is one of the only ones you enjoy Kale may be better option if you... - Enjoy it - Like the thick texture it provides in your smoothies - Want to expand your vegetable repertoire and try something more exotic PS: Baby spinach is a great food that has lots of health benefits to it. So please enjoy all the leafy greens and don't discriminate! Or at least the ones you enjoy the taste of. I hope this post helped shed some light on the fact that there is no perfect, universal diet out there.