I found it interesting to discover that 500 mg of Meriva phytosome curcumin only contains about 96 mg of curcuminoids. A sample product from Doctor's Best
. Based on the molecular weight of phosphatidylcholine and curcumin, this represents a 2:1 ratio of phospholipid:curcumin.
In contrast, the 400 mg of BCM-95 curcumin would give you about 267 mg of curcumin. I guess which one you choose would be based on whose claims you believe for increased absorption, i.e., 8-10x for BCM-95 or 5-24x for Meriva phytosome (note that the 5x data for Meriva was in a study using rats which might be different from people). If we assume 10x for BCM-95 using the data from Europharma and 24x for Meriva phytosome from the USANA study, then we are comparing very similar numbers, 2667 mg vs. 2304 mg curcumin equivalents respectively.
On another topic, here's a free review paper discussing various phytosome complexes
For example, a phosphatidylcholine+EGCG complex increased the absorption of EGCG by 2x. Natural Factors
has this product available. However, the EGCG content seems a bit on the low side at only 7 mg. Even with the 2x absorption, one would probably get more from drinking a cup of green tea. Indeed, the book "Green Tea
" by Nadine Taylor indicates that the average cup of green tea contains 50-100 mg of catechins.
There was a Dr. Oz show a while back where he said that adding lemon juice will acidify green tea and make the polyphenols more absorbable (I don't know by how much though). I dislike the tast of lemon with my green tea so I've been adding a small amount of citric acid (it's pretty inexpensive when bought in bulk from the local health food store, it's also easier than continually cutting up and squeezing a bunch of lemons).