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What are the harmful side effects of eating malic acid?


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2007-05-09 22:10:20
2007-05-09 22:10:20

Malic acid is found in fruits such as apples, animals and in the human body. In fact its structure is related to another structure that is a part of our energy-producing system called the Kreb's cycle. It is thought that if malic acid and magnesium are combined, this combination may help with treating pain and tenderness among those suffering from fibromyalgia. Several studies show mixed results concerning its benefits. It is sold as a supplement but has not been proven in humans to be beneficial. Scientists do not report harmful effects. However, it is recommended that pregnant and lactating women do not take it in its supplement form because scientists do not know its long term effect on the baby.


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Malic acid is not considered to be harmful to health. It is usually found in the fruits and would only pose a danger to those who are allergic.

malic acid is found in apples

There are two different structures of malic acid, an L-isomer and a D-isomer. The only difference between the two is that they rotate the light shining on them in two different directions. L-Malic acid is produced naturally in fruits. 90% of the acid in apples is malic acid. When malic acid is produced synthetically, a mixture of the two isomers is obtained which is called DL-malic acid (because it contains both D- and L-malic acid). When you eat DL-malic acid, your body digests it in just the same way as it does for L-malic acid. It is part of the Krebs cycle.

There are two different structures of malic acid, an L-isomer and a D-isomer. These two molecules are identical like your left and right hands. While they have the same atoms and bonds, they are not necessarily interchangeable, just as you cannot fit your left hand in a right hand-shaped hole. L-Malic acid is produced naturally in fruits. 90% of the acid in apples is malic acid. When malic acid is produced synthetically, a mixture of the two isomers is obtained which is called DL-malic acid (because it contains both D- and L-malic acid). When you eat DL-malic acid, your body digests the L-malic acid normally (it is part of the Kreb's cycle), but the D-malic acid is excreted in the urine. A 1967 study by the WHO shows evidence that D-malic acid is toxic and causes renal damage. When purchasing malic acid, if it is called "malic acid" it is likely DL-malic acid. If the natural form is desired, purchase specifically L-malic acid.

the answer is yes. tomatoes do contain Malic acid.

Of all the acid in green apples, 90% of it will be malic acid. This naturally-occuring acid will be found exclusively in the form of the L-isomer, whereas synthetic malic acid is made up of both L- and D-malic acid

Malic acid is often used in dog chews which claim to have dental health benefits. This is because the malic acid stimulates their saliva glands. Dogs' saliva helps to protect their teeth. It is unlikely that dogs will be allergic to malic acid. Unless they are being fed a very large amount (say 15+ grams) dogs are unlikely to show any negative effects from the acid itself.

Apples contain the most malic acid as a percentage of total fruit acid content. The amount of malic acid in apples as a percentage of the total acid is 94-98%

they are harmful because , in acid the main harmful thing is acid rain. it is acidic. it is harmful to the skin.

There are two forms of malic acid; the L-isomer is found naturally in most fruits and many vegetables in varying amounts. Of the total acid content in apples, 90-98% is L-malic acid. Malic acid can also be produced synthetically from maleic anhydride. It is impossible to choose whether natural L-malic acid or the unnatural D-malic acid isomer is formed during synthesis so a mixture of the two is formed, often called DL-malic acid. It is most likely that if malic acid is used as an additive, it is the synthetic DL-malic acid. The body metabolises the two forms in exactly the same way.

Malic Acid is found in mostly green apples, grapes and wine .

All acids with a general formula of R-COOH are organic acids from a chemistry point of view. Malic acid can be extracted from apples or produced synthetically from butane gas. From a food legislation point of view: If the malic acid is extracted from an organic apple, it counts as organic malic acid. If the malic acid is extracted from an apple which has been treated with chemical pesticides or fertilisers, it is inorganic malic acid.

Citric acid is in lemons and oranges. Tarteric and Malic acids are in grapes. Apples have Malic acid.

Malic acid found naturally in apple juice will be the L-isomer exclusively. This is the natural form of malic acid. Synthetic malic acid - the acid which has been produced rather than extracted - is a mixture of the two isomers, named D-malic acid and L-malic acid. Since it is impossible to separate the two, the mixture is often referred to as DL-malic acid. Natural L-malic acid has been declared suitable for all ages. D-malic acid should not be given to very young infants because they have not yet developed the enzymes to utilise malic acid in the Krebs cycle (which is how older humans metabolise it). If the apple juice is marketed for infants, it will not have D-malic acid added to it and will therefore be safe. Malic acid which has been used as an additive will usually have the E-number 296 and is likely to be synthetic. Any malic acid can be considered as a flavour enhancer or a preservative and is neither good nor bad for your child so long as they are older than infant age and brush their teeth regularly.

Of all the acid in a green apple, malic acid makes up for 90% of it. The acid is the L-isomer exclusively.

Malic acid is produced by all living things. Malic acid is most commonly found in fruits. The acid is commonly used as a food additive as it lends a pleasant sour taste.

Malic acid can be produced in a pure form by crystallising it out of water when it has been made synthetically from maleic anhydride, which in turn is made simply from butane gas. This reaction process leads to a mixture of the two malic acid isomers. To purify the natural form of L-malic acid, it is necessary to remove it from apples or other fruits where malic acid is present in a high concentration. This can be done by fractionated distillation. Green apples are best for this since 90% of the acid present in them is malic acid.

Malic acid is the acid found in apples.

Yes it has acid, the acid in it is Malic Acid.

No. Malic acid is an alpha hydroxy acid. Sugars are almost always cyclic hemiacetals. Whilst it is possible for the human body to utilise malic acid as a source of energy, this does not make the acid a sugar. In fact, malic acid gives apples a sour taste so it does not even add to the sweetness of the fruit.

Malic acid was first isolated from apples. Of the total acid content, 90-98% in an apple is malic acid. Apple-flavoured products have malic acid added to them because it makes the apple flavour taste more authentic. Malic acid also has the advantage of being a preservative to some degree because it lowers the pH and many bacteria do not survive outside of a neutral pH range. Finally, malic acid can also be used to keep the acidity of the product stable, so the flavour tastes the same for longer. In Europe, malic acid has the E number E296.

Citric acid is the stronger acid of the two because the molecule has three acid groups as opposed to malic acid which has only two. Citric acid will therefore dissociate more easily. From personal experience, malic acid is the more strongly flavoured though!

Apples contain Malic Acid

Before you do any type of gallbladder detox, you would need to speak with your doctor. DL malic acid and DL hydoxysuccinic acid are things you would want to run by your doctor for sure. Malic acid is found in fruit, but you want to make sure it doesn't interact with current medications.

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