Masking drugs in pill form is quite common. No one ever suspects my Vitamin C pills are actually cocaine.

Odds are she takes heavier medication than you do.

you just have to sit back and laugh at that, its a simple mistake and hopefully everyone she talked to see the lighter side and realise you Grandma is a little crazy in a funny way !

Crossing my fingers no one actually buys that story!

Meth doesn't have shit on some vitamins.

Well on the positive side, you can now take amphetamines and steroids without a blow to your reputation!

bad luck but be careful of your protein intake i lost a dear friend of mine because he took uncontrolled amounts

Ingnorants gonna ig. My wife once went utterly off the rails on me because she found what she thought was drugs in the food pantry. It was a ziplock of half the jar of PB2 peanut powder I'd bought. I'd taken the the jar to work and left the ziplock at home to avoid just this situation.

She might have just been desperate for some nasty gossip. Maybe her bingo pal Gretta was talking about how her grandson just got arrested and your gramma didn't want to be left out. Old people can be competitive.

the only solution I can think of is to talk to your grandma about it and explain to her the best you can that it's just protein and vitamins and if she believes you have her tell everyone she told that she mistook what items you had.