Last updated: August 11, 2021

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Methionine is an essential sulphur-containing amino acid that plays an important role in the metabolic process. It is mainly used for the treatment of bladder infections or urinary tract infections, but can also be used for the potential prophylaxis of dementia or as a support against depression.

We are pleased that you have found your way to our large methionine test 2021. The article will provide you with all the information you need to know when taking and buying methionine.




The most important facts

  • Methionine is an essential sulphur-containing amino acid and plays an important role in our metabolism.
  • Methionine is mainly used to treat and prevent bladder/urinary tract infections, but can also be taken for depression or dementia prevention.
  • Methionine preparations are available in the form of capsules or powder. However, methionine can also enter the circulation through the diet.

The Best Methionine: Our Picks

Guide: Questions you should ask yourself before buying methionine

What is methionine?

Methionine is an essential sulphur-containing amino acid. Methionine is a precursor of cysteine, taurine and the antioxidant glutathione. L-methionine is the naturally occurring form. Methionine is found in almost every body tissue, in the form of S-adenosyl-methionine.

It is needed for the production and breakdown of substances such as, adrenaline, carnitine, choline, creatine, melatonin and nucleic acids. It also supplies the body with sulphur and methyl groups and is an important structural element for skin, hair and nails.

Methionin-1

Methionine can be taken in capsule or powder form.
(Image source: stevepb / pixabay.com)

What is methionine used for?

Methionine is mainly used for bladder infections, although the effect of this treatment method is controversial. (1, 2)

Did you know that methionine is one of two sulphur-containing amino acids?

Together with cysteine, methionine is one of the only sulphur-containing amino acids, which is why these two amino acids are essential for our metabolism.

Methionine can be used in combination with other active ingredients, such as S-adenosyl, to support depression treatment, dementia prophylaxis, alcohol-related liver disease and cirrhosis. (3)

How does methionine work?

Methionine leads to an acidification of the urine, which inhibits bacterial growth and the attachment of bacteria to the urothelial cells.

The intake of methionine leads to an acidification of the urine.

The acidification comes from sulphate, which is excreted by the kidneys, whereby protons enter the urine, making it acidic.

Furthermore, methionine is said to improve the solubility of urinary stones and support treatment with antibiotics. In addition, a functional methionine cycle can lead to increased methilisation and protect the brain from damage. (4, 5)

How do I dose my methionine intake?

Most manufacturers of methionine supplements, have product specific dosage recommendations in their package insert. Usually 1-2 capsules daily, or ~9g powder 1-2 times daily.

Dosages can usually be found in the package insert.

However, if you are taking methionine not as a food supplement but as a medicine, you should always consult a doctor about taking it, and also for food supplements if you are pregnant.

What side effects can methionine have?

Taking methionine can cause stomach discomfort, diarrhoea or nausea under certain circumstances. These side effects are unpleasant but harmless.

If you are unusually tired, excitable or unresponsive after taking methionine, you should consult a doctor, as this may indicate acidosis of the blood.

What are the alternatives to methionine?

If methionine is used to fight inflammation, you can of course also take antibiotics as an alternative, but you should take antibiotics with caution.

L-methionine can also be supplied to the body naturally, as some foods have a considerable amount of methionine. If you want to know more, there is a list of foods in the trivia section.

Methionin-2

Methionine levels can also be increased through a conscious diet.
(Image source: Engin_Akyurt / pixabay.com)

Decision: What types of methionine are there and which one is right for you?

Methionine preparations are divided into these two types:

  • Capsules
  • Powder

In the following sections we go into detail about the advantages/disadvantages and areas of application of the two types of device.

Advantages and disadvantages of methionine capsules

Methionine capsules come commercially with a dosage of 500 mg per capsule. The capsules are pleasant to take by swallowing, and they dissolve in the stomach and take effect. The capsules make dosing very easy.

Advantages
  • easy dosage
  • easy intake
Disadvantages
  • more expensive

Advantages and disadvantages of methionine powder

Methionine powder is usually offered in larger quantities, often in kilo-packs. The powder is taken by mixing it with water. The amount of powder must be dosed by the user.

Advantages
  • cheaper
  • pleasant to take
Disadvantages
  • independent dosage

Buying criteria: You can use these factors to compare and evaluate methionine

Quantity

The amount of capsules or powder varies between products from different manufacturers. The more you buy, the more you pay.

It is therefore worth checking how long you plan to take methionine supplements. If you are taking the supplements for a longer period of time, you can look for discounts and buy larger quantities. If the intake is only temporary, it is worth buying a smaller pack.

Consumption

A distinction is made between capsules and powder preparations.

An important aspect when buying methionine preparations is the way in which they are taken. Essentially, a distinction is made between capsules and powder.

If you have problems swallowing capsules, you should of course opt for a powder. However, drinking such powder drinks can also be unpleasant. Therefore, it is worth being clear about your preferences before buying.

Purity

Many methionine preparations contain only methionine, while others contain other active ingredients.

If the product you are interested in contains other active ingredients in addition to methionine, you should find out about them first, as you may be killing several birds with one stone or solving one problem but creating another.

Some supplements contain other active ingredients in addition to methionine.

Organic/plant-based

Some supplements are plant-based and/or labelled organic, these supplements contain L-methionine, the naturally occurring form of methionine.

If it is important to you to use organic or plant-based products in your diet, you can safely consume them. The products are always clearly labelled.

Methionine preparations are also available in vegan, plant-based and organic quality. (Image source: jarmoluk / pixabay.com)

Testimonials

When buying medicines or dietary supplements with methionine, it is also worthwhile to refer to testimonials from people who have already taken these preparations in order to better assess their effect.

Good sites to look at testimonials are product sites with user ratings like medpex.de or sanego.de. Internet forums are also a good place to find testimonials.

Facts worth knowing about methionine

What foods contain methionine?

There are several foods that contain methionine. Usually the content of methionine and cysteine is given together, as methionine is a precursor of cysteine. Here is a list of foods with a high methionine/cysteine content:

Food (100g) Methionine/Cysteine Content
Salmon 700 mg
Prawns 670 mg
Turkey(Breast) 630 mg
Chicken(Breast) 620 mg
Soya Beans 580mg
Beef(Fillet) 570 mg
Cashew Nuts 380 mg
Wheat Germ 280 mg
Emmental 250 mg

How long should I take methionine?

You should always consult a doctor about how long you should take it.

Unfortunately, there is no blueprint that we can give you here; the duration of intake depends on your complaint and your personal disposition.

Therefore, you should always consult a doctor or health professional and get competent personal advice.

Is methionine also important for animals?

Yes, methionine is also an essential metabolic product for animals and should be supplied to the animal in sufficient quantities.

This can be achieved through the feed or through special dietary supplements. If you want to supply your animal with enough methionine, sesame, soy, chia or linseed are good methionine suppliers.

Methionin-4

Methionine can also be supplied to animals through food.
(Image source: bollection / piaxabay.com)

Picture source: Leighannef/ 123rf.com

References (5)

1. Die Studie des Instituts für Qualität und Wirtschaftlichkeit im Gesundheitswesen von 2010, befasst sich mit der Frage ob L-Methionin bei neurogenen Blasenstörungen helfen kann.
Source

2. Diese Studie von 2012 befasst sich mit der Frage ob sich L-Methionin zur Profilaxe von Harnröhrenentzündungen eignet.
Source

3. Die Studie von 2011 beschäftigt sich mit der Rolle von L-Methionin bei Erkrankungen des Zentralen Nerven Systems.
Source

4. Die Studie von 2003 befasst sich mit dem Methionin-Homozystein Zyklus und seinem Effekt auf kognitive Erkrankungen.
Source

5. Die Studie von 1997 befasst sich mit der Frage ob L-Methionin zur Reinfektionsprophylaxe von Harnweginfektionen eingesetzt werden kann.
Source

Why you can trust me?

Studie des IQWIG
Die Studie des Instituts für Qualität und Wirtschaftlichkeit im Gesundheitswesen von 2010, befasst sich mit der Frage ob L-Methionin bei neurogenen Blasenstörungen helfen kann.
Go to source
Fallstudie
Diese Studie von 2012 befasst sich mit der Frage ob sich L-Methionin zur Profilaxe von Harnröhrenentzündungen eignet.
Go to source
Fallstudie
Die Studie von 2011 beschäftigt sich mit der Rolle von L-Methionin bei Erkrankungen des Zentralen Nerven Systems.
Go to source
Fallstudie
Die Studie von 2003 befasst sich mit dem Methionin-Homozystein Zyklus und seinem Effekt auf kognitive Erkrankungen.
Go to source
Fallstudie
Die Studie von 1997 befasst sich mit der Frage ob L-Methionin zur Reinfektionsprophylaxe von Harnweginfektionen eingesetzt werden kann.
Go to source
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