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pH (Acidity) Testing

The pH (potential of Hydrogen) of saliva offers a window through which we can gauge the pH of the internal biochemical environment of our body. That includes blood, organic fluids such as lymph, and intracellular fluids. It is similar to the body temperature; a high reading usually suggests an infection and a low reading usually suggests an iodine deficiency and/or low thyroid function. Saliva pH testing represents a consistent and definitive physical sign of the ionic calcium deficiency syndrome.

Almost all degenerative diseases, including cancer, heart disease, osteoporosis, and arthritis are associated with excess acidity in the body. Acidification is directly or indirectly linked to lack of energy, fatigue, poor circulation, weight gain or loss, irritability, nervousness, inflammation, gastro-intestinal disorders, acid reflux, diabetes, irregular bowl movements, kidney and bladder stones, allergies, skin disorders, joint fatigue, rheumatism, and gout.

A healthy pH range is 7.0 – 7.5. A pH of 4.5 – 6.75 suggests a need to alter diet and lifestyle. A pH of 8.0 – 9.0 is too alkaline and is also unhealthy. The pH scale goes from 0 – 14 and is logarithmic, which means that each step is ten times the previous, i.e. a pH of 4.5 is 10 times more acidic than 5.5, 100 times more acid than 6.5, and 1000 times more acid than 7.5. Minerals with a positive electrical charge (such as calcium, potassium, magnesium, sodium) are alkaline minerals. Minerals with a negative electrical charge (such as chlorine, sulfur, phosphorus) are acidic minerals.

The effectiveness of diet and lifestyle changes intended to balance pH can be monitored and evaluated by testing your saliva and urine throughout the day. A general “Rule of Thumb” is to eat 20% acid foods and 80% alkaline foods. From a pH perspective, avoid meat, fish, processed sugar, packaged foods, dairy, coffee, alcohol, and soft drinks. Grains, legumes, and nuts are mildly acid. Eating green leafy vegetables, broccoli, and spinach is strongly advised. Fruits, other vegetables, berries, and dairy are mildly alkaline. Be aware your food choices may need to be customized because of your blood type and/or your metabolic type. Also supplement your diet with alkaline minerals. Reducing stress also increases the alkalinity of the body.

How to test saliva:

1. Wait at least 2 hours after eating.
2. Fill your mouth with saliva and then swallow it. Repeat. On the third time, put some saliva onto the pH strip, and read 15 seconds later.
3. Repeat the test in 2 hours, or at least 2 hours after the next meal or snack. Test throughout the day.
4. Document the test results on a pH chart.

In order to maintain proper pH, your body is constantly trying to get rid of acids. The primary system it uses is your renal system (kidneys). The normal rate of acid excretion through the kidneys gives urine a pH that falls between 6.75 and 7.25. By testing the degree of acidity of your urine, you can determine if your body is saturated with too much acid.

How to test urine:

1. Begin by testing the second urine of the day.
2. Fill a small cup with urine, dip the pH strip, and read 15 seconds later.
3. Repeat throughout the day.
4. Document the test results on a pH chart.


o The pH Miracle by Dr. Robert O. Young
o The Acid Alkaline Diet for Optimal Health by Christopher Vasey, N.D.