I don’t know…
I use Universal’s - their label only mentions flash freezing.
Lots of old-timers swore by liver tabs.
You’ve got to take an ass-load of them to benefit, though.
Most guys who bitch that they’re worthless only take maybe 6/day for a week and complain about no results.
I’ve made noticeable improvements since upping my daily dose.
I also often chew them, which is something Gironda suggested.
Helps with digestibility.
And you still have teeth left? Universal's Liver tablets are like rocks.
I used them before (when they were on sale). Now, I take the Vitamin Shoppe ones, called Liver Plus. The tablets are smaller; three of them give you 2 grams of protein.
And, if you're big on liver tablets, you may want to hit Vitamin Shoppe and give them a try, as VS is doing their "Buy One; Get One 50% Off" promotion on all VS products.
The only bad thing is the prices have gone up. A bottle of 300 Liver Plus tabs used to cost $6; now, it's $10.