Alternative Names: Acidemia, Metabolic acidosis, Respiratory acidosis
Acidosis is defined as a state of increased acidity in the blood and body tissues. Under normal circumstances the kidneys and lungs automatically compensate for pH imbalances; acidosis occurs when, for some reason, this no longer happens.
There are two types of acidosis, Metabolic Acidosis (caused by overproduction of acid in the blood, or excessive loss of bicarbonate from the blood) and Respiratory Acidosis (a buildup of carbon dioxide in the blood due to impaired lung function or reduced breathing ability).
The naturopathic theory behind a proper dietary acid/alkaline balance is that because our body's blood pH is slightly alkaline, with a normal range of 7.36-7.44, our diet should reflect this preference and tend more towards alkaline foods. An imbalanced, acidic diet high in animal protein, sugar, caffeine and processed foods tends to disrupt this pH balance. This deprives the body of alkaline minerals such as sodium, potassium, magnesium and calcium and leaves us prone to chronic and degenerative diseases.
Metabolic acidosis is associated with the kidneys and can be caused by increased production of metabolic acids, reduced ability of the kidneys to excrete acids, or by the kidneys removing too much base. Many of the body's metabolic processes produce acid.
One type of metabolic acidosis is lactic acidosis, which occurs when there is too much lactic acid in the body. This can be caused by long-term alcohol abuse, heart failure, cancer, seizures, liver failure, a prolonged lack of oxygen, starvation, or low blood sugar. Diabetes can also increased acid production: an insulin deficit will lead to increased levels of ketones, which acidifies the blood. Prolonged exercise can lead to lactic acid buildup, but levels usually return to normal afterwards.
Other possible causes of metabolic acidosis include poisoning, hemochromatosis (iron overload), or decreased production of bicarbonate by the body (hyperchloremic acidosis). Diarrhea and vomiting can cause excess loss of bicarbonate.
Respiratory acidosis is associated with the lungs and is usually caused by a build-up of carbon dioxide (CO₂) in the blood due to the lungs being unable to remove enough of it. This can be due to a variety of causes including:
Risk factors that increase your chance of developing acidosis include:
Unfortunately most signs and symptoms of acidosis are shared with numerous other conditions, so careful differential diagnosis is required. They may include:
Diagnosis involves a series of blood tests which measure:
If metabolic acidosis is suspected, a urine test will check the pH to see if acids and bases are being properly eliminated.
Treatment for metabolic acidosis depends on the type.
Treatment for respiratory acidosis often involves drugs to dilate the airway and/or a CPAP device to help with breathing.
Prevention involves reducing the risk factors.
Some patients will fully recover from acidosis; others will suffer complications.
Possible complications resulting from acidosis include:
Left untreated, severe acidosis can cause shock, coma or even death.
Acidic diets (high in protein and refined food) will cause bone calcium leaching in order to maintain your blood pH balance. Chronic leeching of calcium from the bones increases the likelihood of osteoporosis. [Am. J. Clin. Nutr. 2001: 73, pp.118-122, Lancet 1968:1, pp.958-959]
A contributing cause of neuritis is chronic acidosis, that is, excessive acid condition of the blood and other body fluids. All the body fluids should be alkaline in their reaction, but when the acidic wastes are continuously formed in the tissues over a long period due to a faulty diet, it can result in an overly acid state. Stress and over work lower the tone of nervous system and contribute towards acidic neuritis.
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