Hey, it took 2 years, but I managed to find out what is being referenced here. It's an item from Monster Rancher, also called Vitamin C.
Troron
An item from the Monster Rancher series of games.Reimu has become muscular?!H-hmmm...?
The difference is small though...Accuracy +5
Accuracy +5
Accuracy +5
Accuracy +5Longevity -6 (weeks)Strength +10
Strength +10
Strength +10
Strength +10