Nutrition Myths
Advertisement

Ash

Foods contain ‘ash’, which depending on its mineral contents may be acid-forming or base-forming, having an impact on the acid-base balance in the body.

Ash is the total amount of inorganic material (minerals) left after organic material and water has been removed from food by a breakdown in the body’s digestive system (or in the laboratory environment). In other words, it is the particles left after burning all organic material and removing water. The ash content of food is normally below 5%. However, some products such as dry meats may contain more.

Ions are atoms or groups of atoms with a different number of electrons and protons.

If ash contains more positive ions called cations, it is called base-ash (or alkaline-ash) and is base-forming (alkaline). Cations have more protons. Examples of some more common base–ash particles: potassium, sodium, calcium and magnesium.

If ash contains more negative ions called anions, it is called acid-ash and is acid-forming. Anions have more electrons. Some examples of more common acid-ash particles are: phosphate, chlorine and sulfur. (1, 2, 3)

Related Posts

Calcium What is calcium? How much calcium do you need? Benefits of calcium. Best food sources of calcium.
Difference between acidic food and acid-forming food Acid-forming foods and acidic foods are unrelated and produce different effects on the body. Acid-forming foods may reduce the urine pH level, with no impacts on health. Acidic foods don't have an impact on the body's pH...
List of alkaline and acidic Foods List of alkaline and acidic foods and their pH levels. Find out which foods are acidic for culinary usage and for prevention of digestive issues.
Does milk cause osteoporosis? Milk, dairy products and milk derived supplements are good for bone health. The acid-ash hypothesis, which this myth originated, has been disproven by many studies.
Alkaline diet – myths and facts based on science The alkaline diet is actually healthy, but its benefits have nothing to do with what it is claimed. The inclusion of healthy, fresh and whole foods and the restriction of processed and unhealthy foods is what makes it he...
Advertisement
Advertisement

Get updates

Receive regular updates on nutrition myths, facts and curiosities. All based on the latest scientific evidence.