Also in the article linked is other links. On the romaine lettuce is a link- one of the 6 superfoods in disguise- Iceberg Lettuce | Eat This, Not That I have never heard that iceberg was good for you. I have heard it was bad and actually had Pediatricians discourage me from feeding it to my kids because there was no value. They love the stuff and eat it all the time, quite often plain.
There are a lot of people out their with opinions.... some are right, some have an agenda, some are bought off by a constituency, and others are just flat out wrong... research and learn what is best for you.... others may just send you down the wrong road for what is right.
I have always approved of veggies. The Drs haven't always agreed but if figure veggies are better for you. If the child wants a can of green beans then okay, much better the fruit loops. Same with lettuce, it was fresh and they liked it. I knew from talking to farmers that kale was a fad and not the king of superfoods, actually I think the term superfoods is not very old either.
Marketing Hype.... Mostly BS.... Veggies that you find in any Grocery Store, are just fine, and plenty Good for even the pickiest Mom...
i like kohlrabi,easy to grow here in the spring and late fall. Always have eaten it raw, it is something that you can eat without cooking. Never been a fan of kale, only eat it in soup. Had a roommate from the south turn me on to greens, collard greens, turnip greens. Greens are easy to cook and easy to grow.
Ugh...how to develop a taste for watercress.... Maybe as sprouts....hmmm.... As far as everything else on that list....meh. Kale is king over any lettuce.....the worse it tastes the better it is for ya I figure. Granted - everything on that list is easy to grow and cheap seeds so it certainly wouldn't hurt to put it all out for variety. Purple Kohlrabi certainly looks cool in the garden. Haven't tried the Superschmeltz yet though..