Body composition analyzer

Yesterday I did my second weigh-in exactly one week after my initial weigh-in before I started exercising and eating healthy. My results may be a little skewed because the first weigh-in my height was entered as 5"3 1/2 and my second weigh-in my heigh was 5'4".

But her are my results:

Weight: Went from 167.4 to 163.6.
BMR: From 1454 to 1507
Fat %: From 38.8 to 33.8
Fat Mass: 65lb to 55.4 lb
FFM: 102.4 to 108.21
TBW: 75.01 to 79.21

So what does this mean? He told me that I lost 10 lbs of fat and gained 6 lb of muscle. That seems pretty drastic for a week!

Yeah, your body fat percentage loss seems pretty dramatic for a single week. How did he calculate your body fat loss? Calipers? Water submersion? That electronic thingy (the name is escaping me) that you hold in your hands? Are you paying this guy?

Not to discredit your losses or make light of your progress. Every step matters. I just hate to see people misled about fitness and weight loss. We're already vulnerable enough.

I used the electronic things you hold in your hands. No I am not paying him- I'm not sure how that is relevant as my results would be the same regardless of whether I was or wasn't.

I used the Tanita Body Composition Analyzer. Also, my height was entered a 1/2 inch shorter than the first weigh-in (not his fault though).

Don't misunderstand, I'm not trying to offend you. I just wondered, as I thought you did, about the accuracy of your results (or, maybe you were just celebrating your drastic change, it's hard to tell.)

Often, shady trainers or weightloss "coaches" who do our analysis for us (and whom we are paying) get results that are vastly different from reality because they need to show progress. If you don't progress, you won't keep coming and won't keep paying. This is especially true if your numbers on the scale drop very little or not at all; to say that you've lost body fat (which the average person can't always measure for themselves as they can their own weight) seems convincingly like progress. You didn't identify who "he" was and it seemed to me if you were indeed questioning "his" accuracy (even given a misstep in terms of height), it might be worth considering whether "he" (a paid analyzer) could be setting you up for disappointment.