That's why they made this illegal and gmo'd the fruit trees to produce less of it.
Went one step further, and made as many fruits as they could...seedless.
You can buy it over the counter in Mexico, or order apricot pits from Mexico and eat them.
They are about 3% leatrile/amagdylin

https://globalpossibilities.org/the-seeds-banned-by-the-fda-truth-from-a-40-year-long-cover-up-revealed/

Richardson Nutrition Center (Scottsdale AZ, I believe), sells Laetrile capsules. They are the same potency and price as my husband got with treatment in Tijuana a couple years back.
www.rncstore.com

Also selsl apricot seeds, but I believe amazon has organic apricot seeds for less $$s.