Extremly Skinny friend needs help with weight gain and a workout Routine

[Gladiola]

That is what i told her but she cringed at the Yams. What about red or regular Idaho potatoes?

I think they don't have quite so many vits & mins, but otherwise they are still a good clean carb - just eat the skin for the fiber & to keep the GI more moderate. Eat up on the taters!