absorption agent is piperine (from black pepper).
i add half teaspon of turmeric in soup every day , along with black pepper (for absorption). in case you think taking black pepper with turmeric has no proven benefit or no scientific basis, read below:
"Concomitant administration of piperine 20 mg/kg increased the serum concentration of curcumin for a short period of 1-2h post drug. Time to maximum was significantly increased (P<0.02) while elimination half life and clearance significantly decreased (P<0.02), and the bioavailability was increased by 154%. On the other hand in humans after a dose of 2g curcumin alone, serum levels were either undetectable or very low. Concomitant administration of piperine 20 mg produced much higher concentrations from 0.25 to 1h post drug (P<0.01 at 0.25 and 0.5h; P < 0.001 at 1 h), the increase in bioavailability was 2000%. The study shows that in the dosages used, piperine enhances the serum concentration, extent of absorption and bioavailability of curcumin in both rats and humans with no adverse effects."
/www.thieme-connect.com/products/ejournals/abstract/10.1055/s-2006-957450