How To Lose 20 Pounds Really, Really Fast

The Slimguide is the best inexpensive caliper available (about $20), but it wasn't designed for you to measure your own body fat like the Accu Measure. You'll need someone to measure you with this caliper. Other models of body fat calipers (if you want to splurge), range from $150 to $450. (At our health clubs, I use the electronic "SKYNDEX" caliper with the 4-site "Durnin formula.")

The calipers come with instructions, or you can use these formulas, which I have used and found to be very accurate:

% fat = .29288(sum of 4 skinfolds) - 0.0005(sum of four skinfolds squared) + 0.15845(age) - 5.76377

4-Site Formula for women (abdomen, suprailiac, thigh, tricep)

% Fat = (.29669)(sum of 4 skinfolds) - (.00043)(Sum of four skinfolds squared) + .02963(age) + 1.4072

[Source: Jackson A S, Pollock, M (1985) Practical assessment of body composition. Physician Sport Med. 13: 76-90.]

Body fat percentages vary based on age and gender, but 20-25% body fat is average for women (15-19% is ideal), while 15-20% is average for men (10-14% is ideal). I have detailed charts for body fat charts in my e-book if you're interested.

Once you know your body fat percentage, then weigh yourself and record your weight and body fat on a progress chart such as the one found in my Burn The Fat Feed The Muscle Program (a fat loss program, not a weight loss program). This chart is how you will track your progress and "keep score."

You can calculate your lean body mass (muscle and other fat free tissue) very easily just by crunching some numbers:

For example, if you weigh 200 pounds and you have 10% body fat then you have 20 pounds of fat (10% of 200 = 20). That means you have a lean body mass (LBM) of 180 pounds.

Now we're talking! With this data, you can get a really clear picture of how your exercise and nutrition program are affecting your physique.

Losing weight is very easy. Losing fat - and keeping it off without losing muscle - is a much bigger challenge. If you simply wanted to lose weight, we could just chop off your leg.

Or, (slightly less painful), I could show you how to drop 10 - 15 pounds over the weekend just by dehydrating yourself and using natural herbal diuretics. Wrestlers do it all the time to make a weight class. But what good would that do if it’s almost all water and you’re just going to gain it all back within days?

You don't have to "throw away your scale" like many "experts" tell you to. By all means, keep using the scale, the tape measure and even photographs and the mirror - the more feedback the better - but body fat is where it's at.

By the way, I recently bought a chain saw and a shiny new axe from Home Depot, and I've been practicing my "American Psycho" and Jack Nicholson, "The Shining" impersonations... so if you want to come to my office any time soon for personal consultation, you'd better have the right answer to my question, "What do you want?"

For more information about a nutrition and training program that focuses exclusively on FAT LOSS, not WEIGHT LOSS, visit: www.burnthefat.com

Tom Venuto is a lifetime natural bodybuilder, an NSCA-certified personal trainer (CPT), certified strength & conditioning specialist (CSCS), and author of the #1 best-selling e-book, "Burn the Fat, Feed The Muscle.” Tom has written hundreds of articles and been featured in IRONMAN, Australian IRONMAN, Natural Bodybuilding, Muscular Development, Exercise for Men and Men’s Exercise, as well as on dozens of websites worldwide. For information on Tom's Fat Loss program, visit: www.burnthefat.com

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