A study published in the Journal of Radiation and Biology found that amygdalin helped the immune system by increasing how many white blood cells attacked harmful cells. Those with low white blood cell counts could possibly benefit from taking B17 supplements. It may also lower blood pressure and reduce pain, but not enough research has been done to make these claims valid; it is mere speculation at this point.
So before jumping from zero B17 to taking a mega-dose, perhaps consider incremental dosing to gauge how your body responds, and then you can add or subtract as determined by how you feel. It varies from person to person, but often 500 milligrams per day twice a day can be enough. Or try including some natural Vitamin B17 foods listed above.
The best sources of amygdalin come from a variety of seeds, fruits, vegetables, sprouts, and nuts, and the very best source is found in apricot seeds. Soil and climate play a large role in how much vitamin B17 is in a particular food, so it can be difficult to determine the exact levels in each food. Below are some foods that are good sources of vitamin B17.doctorshealthpress Vitamin B17 (Laetrile) Foods: Fruits, Sprouts and More