Meat juice is the liquid/broth that forms while cooking meat - you know, the stuff you use in gravy and such. Not gross at all. If you've ever eaten a roast with potatoes, you've had potatoes in meat juice.
They're fine in moderation. Yams/Sweet potatoes are ideal, don't go crazy on the russets though.
Au jus = meat juice
Au jus is one of the finest things in cooking.
Female, 5'3", 50, Starting weight: 163lbs. Current weight: 135 (more or less).
I can squat 192.5lbs, press 75lbs and deadlift 210lbs
Honestly, if you compare Sweet and White potatoes, it's not a clear win for Sweet. Both have many similar traits, Sweet have more fiber, White have more minerals. Sweet has a lower glycemic, but i you are eating your potato with butter, I'd bet the glycemic levels are pretty similar.
Myself, I alternate between the two. I find I get gassy if I eat sweet potatoes every day.
Speaking of pealing them, i take it if you peel it well and fairly deep, you'd remove most the toxins that can cause inflammation in some?
Same goes for the rest of the dame nightshades, i think i've confirmed that nightshades do contribute to inflammation in me, as i more than likely have a degree of leaky gut so i've been avoiding them, btu i did have some potatoes at friends house for dinner to not be rude, and didn't feel any symptoms in the days after, so perhaps i could include them in moderate amounts occasionally.