Amygdalin
Hover over a term you want explained. If you need more details, then click on the term and a new tab will open with a full details page.
What Amygdalin Means
Amygdalin is a natural chemical found in the pits or seeds of some fruits like apricots, bitter almonds, peaches, cherries, and plums, as well as in certain raw nuts and plants. It is sometimes called vitamin B17, though this is misleading because it is not a recognized vitamin. Amygdalin can release cyanide, a poisonous substance, when it breaks down in the body. Because of this, it has been studied and promoted by some as a possible cancer treatment, but scientific evidence does not support its effectiveness.
Why Amygdalin Matters in Cancer Care
Some patients look for alternative or complementary treatments beyond standard medical care, and amygdalin is one of the substances they may encounter. It has been promoted in some countries and clinics as a cancer treatment, often under the name laetrile or vitamin B17. However, clinical studies have not shown that amygdalin helps shrink tumors or improve survival. Using amygdalin instead of proven cancer treatments can be risky and may delay effective care. Because of its potential to release toxic cyanide, amygdalin is not approved by the U.S. Food and Drug Administration (FDA) for cancer treatment.
What Patients Might See or Hear About Amygdalin
Patients may come across the term amygdalin when researching alternative therapies, reading patient education materials, or discussing treatment options with their healthcare team. It might appear in clinical trial listings or treatment plans if a patient is considering nonstandard options. Amygdalin is also known as laetrile or vitamin B17, which can cause confusion. Hearing these names does not mean the treatment is recommended or safe. Doctors usually do not include amygdalin in cancer care because it has not been proven effective and may cause harm.
Common Confusions and Questions
Amygdalin is sometimes called vitamin B17, which might make people think it is an essential vitamin or a proven cancer treatment. This is not true. It is not recognized as a vitamin by nutrition experts. Laetrile is another name for the same substance. Because of these different names, patients may misunderstand what amygdalin is or what it can do. If you hear about amygdalin or laetrile, it is important to ask your healthcare provider about its safety and effectiveness. Questions you might ask include: What do you think about amygdalin as a cancer treatment? Are there risks or side effects? How does it compare to approved treatments? Can you provide reliable information about alternative therapies?
Safety and Next Steps
Amygdalin can release cyanide in the body, which can be harmful or even life-threatening. Because of this, it is not approved for cancer treatment in the United States, and its safety and effectiveness have not been proven in human studies. This information is educational and does not replace medical advice. If you are curious or concerned about amygdalin, the best step is to discuss it openly with your healthcare team. They can explain the current research, potential risks, and guide you toward safe and effective treatment options. Staying informed and asking questions will help you make choices that support your health and well-being during cancer care.
Sources
Public source information used for this glossary entry includes: