Food With Vitamin B 17

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If you’re like most people, you probably don’t think about food with vitamin B 17. But if you do, it’s probably because you’re wondering: What’s in my food that could kill me?

The answer isn’t as simple as “nothing.” In fact, there are some foods that contain a compound called amygdalin (also known as Laetrile) that can actually help prevent cancerous tumors from growing.

We’re here to talk about this little-known substance and how it might be able to help you avoid cancer.

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Food With Vitamin B 17

Laetrile (amygdalin or vitamin B17)

  • Go to the cancer types section for information about treatment for your type of cancer

Laetrile is promoted as an alternative cancer treatment. There is not enough reliable evidence that it works.

Summary

  • Laetrile is a man-made form of amygdalin, a plant substance found in some nuts, plants, and seeds of the fruit.
  • Claims that laetrile or amygdalin can treat cancer are not backed up by research.
  • It contains cyanide, a poison, and can cause serious side effects.

What laetrile is

Laetrile is a partly man-made (synthetic) form of the natural substance amygdalin. Amygdalin is a plant substance that exists in raw nuts, bitter almonds, as well as apricot and cherry seeds. Plants like lima beans, clover, and sorghum also contain amygdalin.

Some people call laetrile vitamin B17, although it isn’t a vitamin. 

Why do people with cancer use it?

Laetrile has been used as an anti-cancer agent since the 1800s. People used it either on its own or as part of a program. This might include following a particular diet, high-dose vitamin supplements, and pancreatic enzymes.

Although more recent studies have shown that laetrile can kill cancer cells in certain cancer types there is not enough reliable scientific evidence to show that laetrile or amygdalin can treat cancer. Despite this, people take it as an alternative cancer treatment.

  • Read more about what alternative cancer treatment is

People who use laetrile believe it might:

  • improve their health, energy levels, and wellbeing
  • detoxify and cleanse the body
  • help them to live longer

How you have it

Laetrile is available as:

  • an injection (intravenously)
  • tablets
  • skin lotions
  • a liquid to put into the back passage (rectum)

Taking laetrile as a tablet has more side effects than having it as an injection. This is because our digestive system breaks down the laetrile and releases cyanide. Cyanide is a type of poison.

Side effects

Laetrile contains cyanide. So the side effects of laetrile are the same as those of cyanide. These include:

  • fever
  • sickness
  • headaches
  • dizziness
  • liver damage
  • drooping eyelids
  • a lack of oxygen to the body tissues
  • a drop in blood pressure
  • nerve damage, causing loss of balance and difficulty walking
  • confusion, coma, and eventually death

Avoid eating other foods containing amygdalin if you take laetrile as tablets. This may include foods like:

  • raw almonds
  • carrots
  • celery
  • apricots
  • peaches
  • bean sprouts
  • beans – mung, lima, butter, and other pulses
  • nuts
  • flax seed
  • high doses of vitamin C
  • crushed fruit stones or pips

These foods are safe to eat when you’re not taking laetrile because the levels of amygdalin in them are low.

Laetrile may cause further damage to your liver if you have liver problems.

vitamin b17 benefits and sources

Laetrile is often wrongly called amygdalin or vitamin B17.

Rather, it is a drug that contains purified amygdalin — a compound found in the seeds or kernels of many fruits, raw nuts, beans, and other plant foods (1Trusted Source, 2).

Laetrile is best known as a controversial treatment for cancer. However, there is little scientific evidence to support this hefty claim (1Trusted Source).

This article explains everything you need to know about laetrile, backed by science.

Laetrile is the name of a drug created in 1952 by Dr. Ernst T. Krebs, Jr.

It contains purified amygdalin, which is a compound found naturally in the following:

  • Raw nuts: Such as bitter almonds, raw almonds, and macadamia nuts.
  • Vegetables: Carrots, celery, bean sprouts, mung beans, lima beans, and butter beans.
  • Seeds: Millet, flaxseeds, and buckwheat.
  • Pits of: Apples, plums, apricots, cherries, and pears.

You can take laetrile as a pill or receive it as an injection into the veins or muscles (1Trusted Source).

It is a controversial cancer treatment that was popular in the 1970s. However, it was banned in many US states after research deemed it ineffective and potentially poisonous.

When laetrile passes through the body, it is converted into hydrogen cyanide — a compound that can prevent cells from using oxygen and eventually kill them.

Some theories suggest that hydrogen cyanide may have anticancer effects. Yet, these theories don’t have much evidence to support their claims.

Interestingly, there is some evidence that laetrile may provide health benefits. Studies have found that it may help reduce blood pressure, relieve pain, and boost immunity.

Laetrile is a drug that contains purified amygdalin. It is converted by the body into hydrogen cyanide, which is said to be the source of its suggested anticancer effects.

How Does It Work?

The body breaks down laetrile into three compounds: hydrogen cyanide, benzaldehyde, and prunasin (2).

Hydrogen cyanide appears to be the main compound responsible for its health benefits. It is also thought to be the primary anticancer ingredient in laetrile.

Certain enzymes in the body convert hydrogen cyanide into a less toxic molecule called thiocyanate. This molecule was previously used to treat blood pressure, as it may dilate blood vessels. It was later discontinued because of its toxic effects.

There are four possible theories on how laetrile may fight cancer, though these theories are not supported by scientific evidence.

Two theories state that cancer cells are rich in enzymes that convert laetrile into cyanide. Since cyanide kills cells, this means that cancer cells may break down laetrile and kill cancer.

However, there is no evidence that cancer cells contain the enzymes that help convert laetrile into cyanide.

The third theory suggests that cancer is caused by a deficiency in vitamin B17 (amygdalin).

No evidence proves that amygdalin is actually a vitamin. It also does not naturally exist in the body, and your body cannot be deficient in amygdalin.

The last theory proposes that hydrogen cyanide(made by breaking down laetrile) will make cancer cells more acidic and cause them to die.

But hydrogen cyanide does not differentiate and may also kill healthy cells as well as cancer cells (21Trusted Source).

It’s not clear how laetrile may help fight cancer. However, a few theories suggest that it may specifically target cancer cells or treat nutritional deficiencies.

Potential Benefits of Laetrile

While most of the research on laetrile focuses on its effects on cancer, some studies have found that amygdalin, the natural form of laetrile, may have other health benefits.

Here are a few possible health benefits of amygdalin:

  • It may lower blood pressure: In one study, amygdalin helped lower systolic blood pressure (upper value) by 28.5% and diastolic blood pressure (lower value) by 25%. These effects were enhanced when taken with vitamin C (9).
  • It may relieve pain: Several animal studies show that amygdalin may help relieve pain caused by inflammatory conditions, such as arthritis. However, there is a lack of human-based evidence in this area (10, 22).
  • It may boost immunity: A test-tube study found that amygdalin improved the ability of immune cells to adhere to prostate cancer cells (11).

Keep in mind that the benefits above are only supported by weak evidence. More studies on laetrile and its health benefits need to be done before recommendations can be made.

Some evidence shows that laetrile may help lower blood pressure, relieve pain and boost immunity. However, more human studies are needed.

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Why Is Laetrile Called a Vitamin?

Laetrile is often wrongly called vitamin B17. It is actually a patented drug that was invented by Dr. Ernst T. Krebs, Jr. in 1952.

During the 1970s, Dr. Krebs falsely claimed that all cancers are caused by a vitamin deficiency. He also claimed that laetrile was the missing vitamin in cancer, which he then called vitamin B17.

He likely labeled laetrile as vitamin B17 so that it would be classified as a nutritional supplement, rather than a medicine. This is likely because the tough federal laws that apply to marketing drugs do not apply to supplements.

Interestingly, Dr. Krebs and his father had previously created vitamin B15, or pangamic acid. This was another supplement that claimed to cure a variety of diseases.

Laetrile was likely called vitamin B17 so that it could be marketed as a nutritional supplement, rather than a medicine. This allowed it to avoid tough laws that apply to marketing drugs.

Can Laetrile Treat Cancer?

During the 1970s, laetrile was a popular alternative treatment for cancer.

However, it is now banned by the Food and Drug Administration (FDA) in many states. This is because laetrile can cause severe side effects. Not to mention, there is no evidence that shows it can effectively treat cancer.

In two animal studies, scientists treated a variety of cancers with laetrile alone or combined with an enzyme that helps activate it. In both studies, animals did not show any improvement after being treated with laetrile.

Additionally, the animals seemed to experience more side effects when they received both the enzyme and laetrile, rather than laetrile alone.

Currently, only two studies have examined the effects of laetrile on cancer in humans, though neither compared it to placebo treatment. Thus, it’s not clear if taking laetrile is better than receiving no treatment at all (28Trusted Source).

In the other study, six people with cancer were treated with laetrile. Scientists found that laetrile did not help treat cancer, as each individual’s cancer continued to spread (30Trusted Source).

There are some reports that say laetrile helped treat cancer. Nevertheless, these reports also weren’t able to prove that it was laetrile alone that helped (28Trusted Source).

Lastly, a few test-tube studies have shown that laetrile may reduce the occurrence of tumors by suppressing genes that help them spread. However, there’s no evidence that this same effect will occur in living human bodies.

Overall, the evidence shows that laetrile is ineffective at treating cancer. It is also very dangerous, as it has the potential to be highly toxic and cause death.

Most evidence clearly shows that laetrile is ineffective at treating cancer in human and animal studies. While there are some reports of laetrile helping treat cancers, they aren’t based on proper scientific studies.

Side Effects of Laetrile

Laetrile is known to have various side effects.

Most of these side effects are caused by too much hydrogen cyanide in the body. That’s why the symptoms of laetrile poisoning are the same as cyanide poisoning.

Side effects include:

  • Nausea and vomiting
  • Headaches
  • Dizziness
  • Bluish skin caused by oxygen deprivation
  • Liver damage
  • Abnormally low blood pressure
  • Droopy upper eyelid (ptosis)

Side effects are worsened by:

  • Taking laetrile as a pill, rather than as an injection
  • Eating raw almonds or crushed fruit pits while taking laetrile
  • Taking too much vitamin C while taking laetrile
  • Eating fruits or vegetables that may enhance the effects of laetrile, such as carrots, bean sprouts, celery and peaches

Research shows that vitamin C can interact with laetrile and increase its toxic effects.

Vitamin C speeds up the conversion of laetrile into hydrogen cyanide. It also depletes the body’s stores of cysteine, an amino acid that helps the body detoxify hydrogen cyanide.

In some cases, taking laetrile (and amygdalin) has led to death through cyanide poisoning.

Laetrile can cause a variety of side effects, which are worsened by taking it as a pill or with too much vitamin C. Raw almonds, crushed fruit pits and certain fruits and vegetables can also worsen symptoms.

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The Bottom Line

Laetrile (amygdalin) is a highly controversial alternative cancer treatment.

It is banned in many states by the FDA because it is ineffective at treating cancer and may cause cyanide poisoning.

Laetrile comes with very serious health risks that may potentially lead to death. Thus, you should avoid it.

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