and the body is 98. 6. it is a wonder we all do not all have scurvy. assuming you are not an eater of raw potatoes (l love raw potatoes as a kid) you are correct that heat can destroy some (not all) of vitamin c. i get mine from citrus. i don't really count on the versatile potato as my sole source. so take your issue up with "good eats for guys" and see how they defend their statement. we can't believe everything we hear and read so i admire you for taking up this stance.
"good eats for guys" claims baked potato as a source of vitamin c - but vitamin c disintegrates at 80 degrees celcius!