Yes, but in the limit it’s a paradox.
Or a pair o’ docs.
I was an adult before I learned no one except my mother called zucchini “airplane squash”. Turns out she made it up just to get us to eat it (“Here comes the airplane!”).
My dad made up some names for my picky younger brother who didn’t want to eat his vegetables. ‘Honey lettuce’ and ‘garden sweeties’ come to mind. I wish I could remember what they substituted for, maybe spinach and peas or greenbeans.
Mangia?
David Mitchell springs to your mother’s defense (first part of the video, only about 30s in)…
I recall a piece in the New Yorker, in which Margaret Thatcher visited a street market (to show that she was down with the people), and approached a man selling potato peelers. “You don’t take the jackets off, that’s where the vitamins are!” (pronouncing vitamins with a Tory short “i”) Way to go, Mrs. T! Saving Britain from the potato-peeler man.
At least for ONE nutrient, “The Coumadin Cookbook” has this for Vitamin K in micrograms per ounce:
Cucumber, peeled, raw: 0.56
Cucumber, whole, raw: 5.320
Cucumber skin, raw 100.800
Apple (no peel): 0.092
Apple with peel: 1.260
Potato: 1.134
Potato (peeled): 0.095
Potato, baked flesh and skin: 1,120
Potato, mashed from flakes: 1.428 (must be something in the processing!)
Squash (peel): 22.400
Squash, peeled, raw: 0.840
Squash, summer fresh/frozen, boiled: 1.232
Hmm, vitamin K, not one of your A-list vitamins izzit? Never heard of any past E, if my calculations are correct there should be five vitamins before we get to “K”. So forgive me if I’m not ready to jump on the K-wagon, what’s in it for me? Will it give my toenails a healthy sheen, or allow my tastebuds to warn me if there’s too much helium in my Liederkranz processed cheese?
Vitamin K is essential to proper blood clotting. So it’s sort of essential if you don’t want to bleed to death. Especially if you accidentally overdose on something like warfarin, for which it is an antidote, but it’s needed by everyone.
Also has a role in calcium metabolism which is connected to things like healthy bones.
Fortunately it’s a common enough nutrient in a lot of foods that a deficiency is very rare in anyone with normal health and anywhere near an adequate diet. The issues are mainly with people with significant health problems like liver damage or who take certain drugs (like warfarin).
That is so adorable I’m co-opting it. 
Growing up in the 70’s/80’s, I had heard many times that the best (most nutritious) way to eat a potato was to peel the skin, eat it, and throw away the rest. Also: cooking vegetables destroyed 99% of their nutritional content.
So when Mom got on a healthy kick, we had a LOT of raw carrots, celery (typically stuffed), broccoli, and cauliflower for our side veggies, as well as the usual side salad. That wasn’t too bad; Ranch Dressing was beginning to get real popular in the Midwest, so drowning everything in Ranch made it palatable.
Never did do raw potatoes.
Someone tell me: are eggs good for you? Science/nutritional experts seem to flip/flop on that, so I’ll ask random internet strangers for their opinions.
Mostly the peels, but you should chew well.
In general (because there’s always someone somewhere with an allergy or other medical condition) yes, eggs are healthy. Like everything else, don’t overdo them and eat other things besides eggs. See this WebMD article