An excerpt I had from a chat at the guys at customcapsule.com back in 2012:
I have heard that Lutein powder is only 5% actual Lutein. Is this true for the Lutein you guys use as well. Should I put 20 times the amount of the dose it says to get the dosage I actually want.Hello,You are correct, the lutein powder is only 5%. On our site, we give a typical dose as 6mg-20mg, but I have seen it slightly different elsewhere. So yes, you would need to up the amount of powder times 20 to achieve your desired yield. I can't tell you how much you should take in, but I will paste below a typical dosing excerpt.LUTEIN DosingThe following doses have been studied in scientific research:
BY MOUTH :
- For reducing the risk of cataracts and age-related macular degeneration (AMD): 6 mg of lutein per day, either through diet or using supplements. People consuming 6.9 to 11.7 mg of lutein per day through diet had the lowest risk of developing AMD and cataracts.
- For reducing symptoms of AMD: 10 mg per day of lutein supplements.
There is 44 mg of lutein per cup of cooked kale, 26 mg/cup of cooked spinach, and 3 mg/cup of broccoli.That's a BIG. FUCKING. DEAL. And if companies have been doing this for a long time, is there anything we can do about it?