Karen Kirkpatrick is happy to talk to anyone about vitamin B17 on 01483 423235 (UK) 9am-5pm Monday-Friday. This is a private telephone number and she may not always be able to answer, but keep trying.


No information from may be construed as medical advice or instructions. Readers should consult appropriate health professionals on any matter relating to their health and wellbeing.

How to eat apricot kernels or laetrile tablets



1½ teaspoons (UK) of ground kernels is approximately equal to 5 South African kernels - the maximum per hour. Kernels should not be swallowed whole. They should be chewed, or ground. To obtain a consistency like ground almonds use a nut mill or general purpose grinder. Ground kernels can be sprinkled on food or in fruit juice. They taste bitter - it is the bitterness that is the amygdalin/vitamin B17, so try stirred in apple juice and drink immediately while it is held in suspension.

FOR PREVENTION: have one serving in the morning and one in the evening.

FOR THOSE WHO HAVE CANCER: When eating the kernels, it is a good idea to gradually increase the number of kernels eaten, starting with one a day and increasing slowly. If the kernels are working effectively they will release toxins through the excretory organs of the body, including the skin - it is therefore helpful to have a good fluid intake (remember to drink a lot of water!). Please see the page on Toxic crisis - coping with reactions. Please also note that apricot kernels may lower blood pressure.

It is important to emphasise that it is a good idea to have some food in the stomach when eating large amounts of kernels. It is also a good idea to eat fruits containing nitrilosides such as apricots (fresh or dried), peaches, plums, nectarines, apples, pears, cherries. There is something in the flesh of the fruit which will neutralise the minute traces of beta-glucosidase present in the saliva, the stomach and the intestines, which is what may cause some people to feel a bit nauseous. Some people find eating the kernels cures constipation! If this creates a problem the other way - this usually settles down soon.

SUMMARY: aim to eat 1½ teaspoons of ground kernels (e.g. stirred into juice), or 5 whole (chewed) kernels, up to a maximum of six to ten times in a day, with at least one hour in between each serving, but remember to build up gradually, starting with one a day.

Some people have successfully treated themselves just by eating apricot kernels. However, especially if the cancer has metastasised (spread), it is advisable to consider taking a more concentrated form of vitamin B17 along with supplements and a changed diet, to maximise the attack against the cancer.


(Comments mainly taken from Christian Brothers' website, Frequently Asked Questions). Most people with cancer take 3-6 tablets a day. Taking two tablets at a time is fine (so many people would be able to have two at each meal time: at breakfast, lunch and supper). Start slowly, with half a tablet the first day. If this is well tolerated take one whole tablet the next day and increase gradually over the following week.

If you find that you are getting nauseous, take half a tablet at a time and increase gradually with half a tablet at two hour plus intervals. It is a good idea to have a little food (but not raw fruit/vegetables) in the stomach just before taking the vitamin. was another website that also emphasised that it is a good idea to have some food in the stomach when taking high doses of B17. (However, Binzel suggests taking the tablets on an empty stomach, so it is best to experiment. Personally we have found having food in the stomach best, but not raw fruit or vegetables. Bread, biscuits, cooked fruit or vegetables, soup would be fine.)

NB Dr Binzel does not start his patients on their Laetrile, either I.V. or orally, until they have been on their vitamins and enzymes and diet for a period of ten days to two weeks. He finds that the Laetrile seems to have little or no effect until a sufficient quantity of other vitamins and minerals are in the body. Zinc, for example, is the transportation mechanism for the Laetrile. In the absence of sufficient quantities of zinc, the Laetrile does not get into the tissues. The body will not rebuild any tissue without sufficient quantities of Vitamin C. When he starts the Laetrile he also increases the dosage of Vitamin C by 1 gm every third day until they reach a level of at least 6gms. NB When reducing from high dose of vitamin C please do so gradually. The comments on toxic crisis and lowering of blood pressure also apply to laetrile.

See the other parts of the B17 and nutritional therapy - (2) supplements and (3) diet, which are equally important. The people who do best in their fight against cancer are the ones who take it seriously and are thorough and consistent in applying the recommendations. Being half-hearted or inconsistent, or even feeling too much is being asked, may be understandable but doesn't bring the same results.

Recommended Reading:

  • Philip E Binzel, Jr., M.D. Alive and Well (American Media, California, 1994). Read online at
  • G. Edward Griffin World Without Cancer (American Media, California, 1974 and 1997).
  • Phillip Day Cancer, Why we're still dying to know the truth (Credence Publications, Kent 1999) B17 Metabolic Therapy in the prevention and control of cancer, a technical manual (Credence Publications, Kent 2002)
  • Francisco Contreras, M.D. The Coming Cancer Cure (Authentic Media, Milton Keynes 2003). See also
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