What is the lignan content in flaxseed hulls?

The lignan content in Flaxseed hulls can vary between 3-5%. This depends on growing season and growing conditions. We have offered 630 mg, 690mg capsules and 750 mg capsules. The capsules of flaxseed hulls are 100% pure flaxseed hulls. There are no chemicals used in the separation from the seed embryo and nothing else has been added. Therefore the lignan content in each capsule can be from 3% (18 mg) to 5% (31.5 mg) in the 630 mg capsules and 22.5 mg to 37.5 mg in the 750 mg capsules. We use 30 mg as a general rule of thumb since that is an average of 4% of the 750 mg capsule.