3. Acid And Alkaline In The DietWhen nutritionists talk about acid- or alkaline-forming foods, they are referring to the condition of the food after ingestion. There are many food substances which are acidic in their natural form that become alkaline when broken down within the body.
A physical description of an acidic substance would be "sour or sharp to the taste buds." Litmus paper is a simple means to determine whether a substance is acidic. Acidic substances such as vinegar, lemon juice, grapefruit juice, tomato juice, tea, coffee or sour milk will all turn blue litmus paper red. The red coloration is an indication of the substances acidic characteristics. Alkaline substances, on the other hand, will cause red litmus paper to turn blue. However, when acid and alkaline substances are mixed together, they neutralize each other, forming water and salt.
Generally speaking, the metabolic processes of the breakdown of foods from the vegetable kingdom change in character from acidic to alkaline, while the foods from the animal world change from alkaline to acid during metabolism.
All foods contain within them a combination of both acid-forming and alkaline-forming elements. The particular influence a food will have on pH will be determined simply by which elements are dominant, the acid elements or the alkaline elements. These elements, when broken down, will either release (H+) ions, and thus create an acidic medium, or they will accept and combine with (H+) ions, creating an alkaline medium.
Keep in mind the following basic concepts:
- Organic matter is taken into the body in the form of food.
- This organic matter is broken down into simple compounds (monosaccharides, amino acids, lipids etc).
- After metabolism, these compounds leave an acidic or alkaline residue in the body.
- The simple compounds contain elements such as sulphur, potassium, sodium, magnesium and calcium. These minerals determine the H+ concentration and thus the acidity or alkalinity of the body.
Most proteins contain sulphur, as well as phosphorus, within their chemical structures. When metabolized, these substances are broken down into phosphoric acid and sulphuric acid, which must then be neutralized through various chemical reactions. Another by-product of protein metabolism is uric acid. (Uric acid has been found to have a major influence on the development of arthritis; in particular, gouty arthritis.) Uric acid must be neutralized and excreted from the kidneys. Because of these toxic by-products of protein metabolism (phosphoric, sulphuric and uric acids), and for many other reasons not mentioned here, protein foods, and especially animal products, are acid-forming. Most grains and dairy products, also high in protein, are, like meats acid-forming.
Within the plant kingdom, the organic acids found in fruits and vegetables are metabolized and eventually become carbon dioxide and water. The alkaline elements such as potassium, calcium, sodium and magnesium remain. Although many fruits are acidic in nature, when broken down into their constituent elements, the acids are rendered neutral and the alkaline elements are dominant. Therefore, the end result of the organic breakdown and digestion of fruits and vegetables is alkaline in nature.
Since we are constantly supplying acids and alkalies to our bodies through the various foods we eat, it is very important that we consider the balance between these two extremes. If we consume excessive amounts of acid-forming foods, such as animal and dairy products, the body must tap its alkaline reserves (buffer salts) in order to maintain the proper pH. The kidneys, lungs and entire physiology is overworked in the process of excreting the neutralized acids from the body. This strain eventually leads to a depletion of buffer salts and the breakdown in the physiological functions of various organs, including the kidneys. Many different organ malfunctions are referred to as "disease," while the underlying cause, acidosis (due largely to faulty diet), has been overlooked. The point to keep in mind is that any food, drug or condiment that is extremely acidic in nature utilizes alkaline reserves and overworks the various organs. This type of dietary abuse may be tolerated for a period of time, but eventually the body will no longer be capable of handling this overload and will slowly begin to break down.
Following is a reference list categorizing some common foods as being either acidic or alkaline within the body.
|Most nuts (walnuts, pecans, brazils)|
|Most legumes (peanuts, lentils)|
|Greens (lettuce, spinach, etc.)||Citrus fruits|
I have refrained from giving you a complete list of all the specific acid and alkaline-forming foods, because this author feels that it is most important for you, as a student of Natural Hygiene, to grasp the major concepts and apply them to your life. Please refer to Composition and Facts About Foods by Ford Heritage for more specific details.
The following rules will supply a conceptual basis from which to apply the dietary philosophy of Natural Hygiene.
FOODS TO AVOID
- All animal foods.
- Dairy products, including milk, yogurt and cheese.
- Vinegar and various condiments.
- Drugs (acidic and alkaline).
- Refined and processed foods. (Many alkaline elements have been removed.)
- Fats. (found in both meat and dairy products.)
- Teas, coffee, cocoa and chocolate.
These should be fresh and unprocessed.
- Uncooked vegetables.
- Fresh fruits.
- Unroasted nuts and seeds.
Home > Lesson 12 - The Role Of Acid And Alkaline Substances Within The BodyP.S.If you would like to learn more about how to go raw and experience the best health and vitality of your life, please subscribe in the form below or visit Fit On Raw.
- 1. Acid-Base Balance
- 2. Body Maintenance Of Normal Ph
- 3. Acid And Alkaline In The Diet
- 4. Acute Conditions Involving Acid-Alkaline Imbalances
- 5. Case Histories Of Acid Indigestion Due To Improper Diet
- 6. The Acid-Alkaline Ratio In The Diet
- 7. Considerations For Working With pH Imbalances
- 8. Questions & Answers
- Article #1: Alkalinity And Acidity Of Foods In Metabolic Reaction
- Article #2: Acid/Alkaline: Clearing Up The Confusion By Marti Fry
In addition to weekly raw food and fitness advice, you'll also receive my free report The 4 Principles of a Healthy Raw Diet and my 5-week mini-course The Fool Proof Transition to Raw just for subscribing: