Absolutely !  I have been using this seed for quite some time.  I grind it up in a coffee grinder just before use (I take it every morning with a tonic that contains other ingredients (*), and add it to bread (it is marvelous in combination with Kusmin flour which I bake bread with)  – it has a strong characteristic bitter taste which I find very tasty.  Eating this seed makes me feel remarkably good and seems to help regulate my blood pressure (as recommended by an Arab I know in Beit Zafafa). For the sake of your clients, this seed is called קצח “prpKETZACH”  here, also זרעי ברכה by some Yemenites.    I always have it in the house as it has a magical effect on the sense of taste, and grinding a few seeds between the teeth instantly freshens the breath.  I can bring you some! 

Daily morning tonic drink: 1 large cup water 1 1/2  tbs.+ tomatoe concentrate 1 tbs. sesame oil 1 tsp. lemon juice 1/2 tsp. garlic, crushed and exposed to air for 10 minutes 1/2 tsp. ground Ketzach 1/4 tsp. ground ginger or 1 tsp. fresh ginger 1/3 tsp. curcum (turmeric)pinch cayenne pepperpinch black pepperpinch fenugreek1/2 tsp. powdered celery 250 mg. Vitamin C 1/2 of the powder content of a magnesium supplement capsule (occasionally)