Hello Deb,
I'm not sure how to answer since you did not give me the names of the other products. I'll give you a couple of examples though for most people.
Multi-Gold contains a complete B complex so unless you have SEID or other type of fatigue/energy issues, you would not need additional B's. B-12 is 200 mcg but a typical dose is 1000 mcg's a day so you may want to take extra a couple times a week to supplement. Vitamin C is 300 mg and you may take up to 2000 mg a day depending on your immune needs and your bowel tolerance. We included antioxidants Alpha Lipoic and CoQ10 but they are supporting amounts only since a typical dose is 100 mg a day or more of each depending on your need.
Likewise, the minerals we use are chelates and take up a bit of room in the capsule so we cannot give you a full portion on some that require larger amounts. Extra magnesium and calcium may be needed, especially if your diet is low in these 2 minerals.
You do need to check your dietary sources, too, when considering supplementing. For instance if you are not big on dairy or meat, you'll have to supplement calcium and magnesium beyond Multi-Gold. I hope this information helps and please give us call or email if you want to "chat" in more depth!