Why Do You Think Weight Loss is so Difficult?


For the last several years, I’ve been asked questions thru e-mail and in person about the particulars of losing weight.  Being mostly skinny all my life, I never really gave it much thought because in my case, losing weight is easy.  I just don’t eat as much and I keep exercising the same or a bit more.  Simple right?

Do we make weight loss harder it should be?

Isn’t it just as simple as:

  • Food in moderation (calories in vs calories out)
  • Decent amount of exercise

That sounds easy but to the people I’ve spoken it, it’s much more challenging.


Ideal Body Fat Percentage

What is your ideal body fat percentage?

According the International Sports Sciences Association (ISSA) they have come up with a very simple ideal body fat percentage chart that outlines from the essential body fat needed to survive to what is classified as obese. You should be able to use this body fat percentage chart to find your ideal body fat percentage based on your gender and age.

Healthy Body Fat Percentage for Males and Females
Gender Male Female Male Female Male Female
Age 18 – 39 40 – 59 60 – 79
Essential Fat 2% to 4% 10% to 13% 2% to 4% 10% to 13% 2% to 4% 10% to 13%
Underfat 5% to 7% 14% to 20% 5% to 10% 14% to 22% 5% to 12% 14% to 23%
Healthy 8% to 19% 21% to 32% 11% to 21% 23% to 33% 13% to 24% 24% to 35%
Obese 20% + 33% + 22% + 34% + 25% + 36% +

* Chart courtesy of the ISSA

Note: You may have heard terms like the following: Lean, ripped, shredded, contest shape, competition shape. If so, those terms generally refer to the category listed above as underfat. For example, if you are a male, who’s 25 years old, with significant muscle mass at 6%… not only are you lean, you are probably ripped, shredded and huge and possibly standing on stage in contest shape.

How to Test for Your Ideal Body Fat Percentage:

There are several methods that you can use to determine body fat.  It’s important at the beginning of any exercise program to at least have a guideline to determine where you are so you can set forth to make changes.  While putting too much emphasis on a number is unnecessary and leads to frustration, having excessive levels of body fat are linked to numerous health issues.

Getting your body fat tested can be motivating (for new clients) and bodybuilders getting ready for a competition (although no judge gets on-stage with calipers to test body fat; the winners are based on look and performance).  Your ideal body fat percentage can be determined thru the following methods:

  • Dual Energy X-Ray Absortiometry (DEXA):  Using a single X-ray source to determine the layout of the entire body along with regional estimates of bone, mineral, lean tissue and fat.  The software then processes this information to determine the percentage of body fat for a person.
  • Hydrostatic Weighing:  Know as underwater weighting, compares the weight of a person in air to their weight completely submerged underwater.  Because fat is less dense than water, a person with a higher percentage of body fat will weight less than a person of similar weight who has less fat.  To get accurate results, the amount of air in the lungs and intestinal tracts must be taken into account.  This requires the person to expel as much air as possible underwater.  In most cases, you do 3 tests for the average result.  If you are uncomfortable underwater, this test will test those limits!  A skilled technician can provide reasonable estimates of body density which can be converted to a percentage of body fat.  This technique is often called the Gold Standard of Body Composition.  It’s relatively inexpensive but not portable. (although in my area, there is a body fat van that comes to the clubs)
  • Potassium Ion:  Taking the amount of naturally occurring isotope, potassium that is active in the body, it is possible to take that total amount and estimate lean body tissue.  The equipment necessary is expensive and the test is not widely available.
  • Bioelectrical Impedance (BIA):  This is the most popular consumer option and the devices are relatively inexpensive and serve a dual purpose in some cases of a common scale.  These devices are based on the theory that water conducts electricity better then fat.  Muscle has a high water content while fat has a lower water content, thus the rate at which your body conducts electricity can be used to estimate body fat.  These devices can be a scale which sends a current upwards thru your feet or hand-held.  They use calculations for the average person and population at large.  If you have a high concentration of muscle, aren’t properly hydrated or are obese, these devices are highly inaccurate.   There are many other variables that can skew the results.  Take whatever these devices report with less than a grain of salt.  I had a hand-held scale at my gym tell me I was 31% body fat when a Hydrostatic test reported I was 13%!  While they are the neatest and easiest to use, they are very unreliable for the most part.  A trick you could use if you were set on purchasing one is to get Underwater Weighed and then go to a location (same day; same hydration levels) and see which devices comes the closest to a much more accurate test.
  • Nuclear Magnetic Resonance (NMR):  By sending electromagnetic waves thru tissues, the nuclei will absorb the frequency and release energy at a particular frequency.  That frequency can be matched to a type of tissue (fat or muscle).  Tissue composition can be calculated based on the results.
  • Ultrasound:  By transmitting sound waves thru tissues and analyzing the echos received, this technique has been used to measure the thickness of subcutaneous fat and the volumes of various organs.  Whole body scans are possible.
  • Near Infrared Interactance (NIR):  By placing a fiber-optic probe over the bicep, an infrared light is emitted.  The light passes thru the subcutaneous fat and muscle and is reflected back to the probe.  I had this done in Las Vegas.  It was expensive and inaccurate compared to Hydrostatic Testing and Skinfold Thickness.  It was “neat” but not worth the money.
  • Skinfold Thickness:  A total estimate of body fat can be made by measuring the subcutaneous fat.  About 50% of all body fat is under the skin.  By using a device called a caliper, you can measure the thickness of the skin at various sites representative of where body fat is stored (1 site pinch test to a 10+ site pinch test).  Using these measurements and applied to specific formulas, a indivdual or professional can get an estimate of body composition.  This technique can be done at home, with 1 site or multiple using a cheap or expensive device called a caliper.  With practice, you can become quite good at this to the point of a +/- 3% of the Hydrostatic Testing.  Skinfold testing is inexpensive, portable and done by a professional with multiple sites can be very accurate.  This is by far the best method to keep track of body composition.

Ideal Body Fat Percentage Tips:

In the past few years, I’ve received many questions (mostly from males) asking if they should bulk or cut first. I use this chart as a reference in conjunction with their overall goals. I prefer to use my current body fat as a health gauge vs. my height vs. weight. If you are a tall skinny person with a rather unusual higher than normal percentage of body fat, you’d be very unwise to start bulking up and adding more body fat without first knowing the reasons why you might be in your particular situation. Using body fat as a measurement vs. other visual aids is more accurate, safer and will help monitor your overall muscle gains or fat loss.

* If you are a male or a female who’s looking to step on stage or just wants to look good for summer, then take a quick body fat percentage check. Using that, you can then determine your best option if it’s to cut or bulk.

* If you are at the top end of healthy or considered to be obese by body fat percentage standards, focus on burning the fat. Your goal should be to get healthy first and then adjust as necessary. If you are already at the top end of healthy and you want to “bulk up,” you’ll get stronger but you probably will add more fat to your body composition making you more at risk.

* Take a body fat measurement weekly or monthly to get a continual status update of your progress. When you start a new program you should take a new measurement for a baseline.

* Don’t let a body fat measurement control your life! It’s just one of many indicators of progress and/or health. A body fat caliper can be quite accurate with practice but seek medical advice in conjunction with your own findings.

I own a ton of fitness books (both downloadable and physical).  Most resources I own always mention the use of calipers and to just use the chart that comes with the product.  But those charts leave so much room for error.  I needed something a bit more professional.  Some in-depth tutorial on how to use the thing would be nice other than the cartoonish drawing on the back you get that shows the person “pinching” around the stomach.

I tried watching YouTube videos on the subject but that’s not a reference I can refer to over and over and frankly, I’m shocked that some of them were over 16 minutes.  It’s not that complicated to use and I don’t need a lecure of every site where I want to test.  Plus, some of these people were using caliper devices that were $200 or more!?

A long time ago I stumbled across a nutrition book called Burn the Fat by Tom Venuto.  Really solid book on nutrition.  Can’t recommend it highly enough.  But one of the bonus items he has is a really detailed book on measuring your body fat.  That gem is worth it alone.  Tom covers exactly what to do and where to test for the most accurate body fat results using that caliper.  He includes charts that are down to the half millimeter!  So it’s really got all the bases covered.

If you want to know your ideal body fat percentage and precisely how to test at home, the bonus that comes with Burn the Fat is worth it.

Click here to download How to Measure Your Body Fat which is one of many bonus books that comes with the purchase of Burn the Fat Feed the Muscle.

Be Fit, Stay Strong!

Marc David – CPT

P.S. - I use an Accumeasure body fat caliper ($10) to test my body fat.  I use the book above for expanded charts for ideal body fat percentage.