I looked in the drug guides EFacts and Natural Medicines Comprehensive
Database for these two supplements. I also found the homepage for
Lactaid online using Google (search: "lactaid"), as there wasn't
complete information on ingredients in either of the drug databases.
Essentially they are the same thing - both Lactaid Original and
Digestive Advantage LI (for lactose intolerance) contain 3000 FCC
units of lactase enzyme.
There is also Lactaid Extra Strength (with 4500 units of lactase),
Lactaid Ultra (with 9000 units), and two different types of Digestive
Advantage (IBD and IBS). Note that the dose for lactose intolerant
people is 9000 FCC units, so you'd need to take three Digestive
Advantage caplets, or as many of the Lactaid version as you need to
get up to 9000 FCC.
Here is the ingredients list for Digestive Advantage LI:
"Each caplet contains: Lactase Enzyme 3000 FCC units ? Lactobacillus
cultures (total ingredient weight per caplet 200 mg) 400 million.
Other Ingredients: Cellulose, Stearic Acid,
Hydroxypropylmethylcellulose, Polyethylene Glycol, Maltodextrin, FD&C
Blue #1 Lake."
According to the label for Lactaid original
the nonreactive ingredients are mannitol, cellulose, sodium citrate,
and magnesium stearate. There is also 5 mg of sodium per dose.
So, basically the difference between the two brands are in the dosage
per caplet and the "other ingredients." And, probably, the cost.
Please let me know if you need additional help!