Student Led workshop: Nutrition Crossword

Sometimes I look like an everyday food
Heard it on the grapevine that I am safe to be around, even during a pandemic
It's been said we are twins, but if you look closely you will see we aren't
Sadly, Covid isn't the reasons for my poor interactions
I am small but powerful can be bitter or sweet, and according to reports can help keep your ticker going
Although you fear me I am not to be feared
Some might call me a hoarder
Sadly, unlike my friend I am not always natural
if you know me well you know me by my nickname
my first letter and last letter are the same, and you might know me better than you think
Like a pharmacy degree, I am believed to have four stages
The verdict is still out on how effective I really am
Although I want to help, do not place all of your trust in me alone
You might go to me to look for answers