Bioimpedance Analysis


Bioelectrical Impedance Analysis or Bioimpedance Analysis (BIA) is a method of assessing your “body composition” ---assessment of tissue and fluid compartments in the body, such as the measurement of body fat in relation to lean body mass. It is an integral part of a health and nutrition assessment. 

BIA one way of measuring your lean muscle mass. Muscle is the powerhouse of your body where almost all your energy is created burning carbohydrates, protein and fat. Low energy diets and lots of aerobic exercise will strip muscle as well as fat from your body. Weight-bearing exercise is vital to maintaining your muscle with many health benefits including an increased ability to burn fat, while reducing your risk of osteoporosis and heart disease.

BIA also measures qualities such as Phase Angle, an indicator of cellular health and cell membrane integrity, and Reactance, the ability of cells to store energy.  Intracellular water is measured, which is the water contained with cells.  Healthy cells maintain their integrity and hold fluid inside cell membranes, maintaining soluble nutrients such as vitamins B and C.  Some nutrients are also held in the extracellular water, but higher than average extracellular water indicates dehydration, toxicity or other imbalances.

BIA fosters early detection of an improper balance in your body composition, which allows for earlier intervention and prevention. BIA provides a measurement of fluid and body mass that can be a critical assessment tool for your current state of health.

BIA also measures your progress as you improve your health. Improving your BIA measurement, or maintaining a healthy BIA measurement, can help keep your body functioning properly for healthy aging. Your BIA results can help guide us in creating a personalized dietary plan, including nutritional supplements when appropriate, and exercise to help you maintain optimal health and well being for a lifetime.

Bioelectrical Impedance Analysis (BIA)

Why Is Body Composition Important to My Health?

Research has shown that body composition is directly related to health. A normal balance of body fat is associated with good health and longevity. Excess fat in relation to lean body mass, known as altered body composition, can greatly increase your risk of cardiovascular disease, diabetes, and more.

A December 2012 article in the Journal of the American Medical Association has stirred controversy regarding "normal weight."  Headlines proclaimed "Being Overweight is Linked to Lower risk of Mortality."  However, reading beyond the headline in that TIME HEARTLAND article(1), the flaws in the study were discussed, including that World Health Organizations categories of "normal weight" were used

By those standards, most Westerners were over average world weights.  There are a lot more under-privledged people in the world.  Also, reverse causation should be considered: 
malnourished and sick people tend to be thin.  Having adequate muscle is important for longevity.

It is also true that fat accumulates fat-soluable chemicals from processed foods and chemical pollutants.  Detoxification programs support elimination of these accumulated toxins for safer weight loss. (2,3)

scales can't determine the lean-to-fat ratio of that weight; an individual can be "over-weight" and not "over-fat." A bodybuilder, for example, may be only 8% body fat, yet at 100kg may be considered "over-weight" by a typical height-weight chart. A person can also look thin or normal weight and be over-fat. Therefore, these charts are not a good indication of a person's ideal body weight for optimal health, much less for athletic performance. 

How much lean muscle mass do you have? Ditch the scales and have your body composition measured using BIA. It will measure your percentage body fat, body water and cell health.
You can see below how weight, height and BMI can be misleading.

The human body is composed of a variety of different tissue types. The so-called 'lean' tissues, such as muscle, bone, and organs are metabolically active, while adipose, or fat tissue, is not.  



How Does BIA Work?
BIA is much more sophisticated than your bathroom scale, but just as simple-and almost as quick.   BIA is performed in our office with the help of a sophisticated, computerized analysis.

This analyzer “calculates” and estimates your tissue and fluid compartments-using an imperceptible electrical current passed through pads placed on your hand and foot as you lie comfortably clothed on an exam table. Lean tissue offers less resistance to a current as it contains more water and electrolytes than adipose tissue.

In just minutes, we’ll have detailed measurements to help create an effective, personalized program for you.

Follow-up Tests
We can conduct a series of follow-up BIA tests to monitor your health and measure your progress.


For an accurate analysis there are some important procedures to follow before your visit (see below). Allow 20 min. for your test. It's simple and painless. 

Guidelines for BIA Assessment

For the most accurate results, the following guidelines should be followed:

What to do prior to BIA testing:
  Drink at least 1 quart of water one hour before testing.

What not to do prior to BIA testing:
  Do not consume alcohol for 24 hours prior to testing.
  Do not exercise for 12 hours prior to testing.

  Do not take a sauna within 8hrs before test.
Do not eat for 4 hours prior to testing.
And the day of BIA testing:
Do not drink caffeine, do not wear pantyhose and do not put lotion on your hands and feet.

You are advised not to have a BIA if you have a cardiac pacemaker

  Adapted from BIA testing