PSYLLIUM HUSKS ARE GRADED ACCORDING TO PURITY AND PARTICLE SIZE
Quality of Psyllium husk depends on the crop: a healthy crop produces seeds that are robust in size (2.1 to 2.8 mm thick) and bright rose white in color; a poor crop yields brownish seeds (1.5 mm thick), which contain high percentage of impurities. High quality Psyllium husk has greater swelling properties and in liquid forms a smooth, jello-like bulk; the poor quality is coarse and brown in color and forms a clumpy mass with impurities. There are nearly 40 species of Psyllium, but the husk from Plantago ovate, also known as “blonde Psyllium”, is the best and has the highest fiber content.
US FDA STANDARDS
Psyllium has become a synonymous term to describe all Psyllium products. Some contain both the husk and the seed. The seed mainly contains proteins and other nutrients.
The US FDA has ruled that the source of soluble fiber is the husk alone—not the seed—and has established a minimum purity specification of no less than 95%husk as a qualifying criterion for eligible source of soluble fiber from Psyllium
Psyllium husks with 95% purity are superior in bulk formation (swell volume) and quality (less impurities) than the cheaper, lower grades.