Why is it that losing weight too fast will result in gaining it all back?

neanderthin

brianpperkins wrote: »

neanderthin wrote: »

brianpperkins wrote: »

vismal wrote: »

Losing weight fast doesn't always result in a significantly higher loss in lean mass. There are many factors at work and to say "losing weight quickly causes you lose more lean mass" isn't necessarily correct. The amount of fat you have, the amount of lean mass you have, the amount of protein you take in, your training, all those things come in to play. Someone who is obese with little lean mass to begin with, who trains weights, and gets in adequate protein, can probably lose weight rather rapidly and not worry about lean mass losses. This thought comes from the world of bodybuilding where lean guys/girls become super lean. In that case you cannot lose weight rapidly and retain all your mass, but it's an extremely different case then someone 40 lbs overweight, which in turn is very different than someone 80 lbs overweight.

Nobody in this thread said what you put in quotes.

The reference to losing lean mass was mentioned 3 times, then I stopped. What was your point, it's not clear.

If the concept of quoting is foreign to you ... wow.

If you actually take time to read the literature on the subject of weight loss, losing LBM is a key component of metabolic adaptation.

lol, ok, thanks.

kyta32

http://www.ncbi.nlm.nih.gov/pubmed/24307184

I found the Look AHEAD intervention to be interesting. The participants were diabetic, so they were motivated to lose weight and maintain the loss. They were advised to get 150 min activity a week, and to eat between 1200 and 1800 calories for one year to lose weight. They were given meal-replacement shakes and bars for free for 4 months, and advised to continue using meal replacements.

The intervention then moved to maintenance for anyone who had achieved 7% weight loss in the first year. Participants were in contact with a weight loss coach a couple of times a month, and had the option of group meetups and challenges for the remaining 7 years that the intervention was funded.

Of those that lost 10% of their starting weight in the first year (the fastest losers?), almost 40% maintained that loss (with some gain that was re-lost) after 8 years. Almost 86% of this group maintained at least some of the weight lost. 65% had maintained at least 5% weight loss after 8 years.

Of those that lost less than 5% of their starting weight in the first year (slow losers?) , almost 60% maintained that loss (and 15% ended up losing over 14% of original weight over the 8 years), but over 40% were unable to maintain any weight loss. 34% managed to lose 5% of original weight after 8 years.

Those that lost the fastest and failed to maintain gained more. In those who failed to maintain, an average of 19% of orignal weight was gained in the fastest losers, compared to 7% gain in the slowest losers.

Overall, in the the fastest losers were more likely to be successful at achieving and maintaining a 5-10% weight loss. The overall success level at maintaining weight loss over time was very high compared to any other data I've seen, and the participants were all diabetic, so I don't know how generalizable the information is.

riffraff2112

My two cents worth, although I think the answers you seek were found....I do not think gaining it back after extreme loss is due to the body's metabolism changing it simply is that fast weight loss usually was a result of a pretty significant sometimes extreme change in behavior. This can be hard to sustain so the weight comes back as soon as the pattern of behavior starts to slip.

sofaking6

kyta32 wrote: »

http://www.ncbi.nlm.nih.gov/pubmed/24307184

Overall, in the the fastest losers were more likely to be successful at achieving and maintaining a 5-10% weight loss. The overall success level at maintaining weight loss over time was very high compared to any other data I've seen, and the participants were all diabetic, so I don't know how generalizable the information is.

Sounds like you're saying that the people who were the best at losing weight were the best at losing weight.

kyta32

sofaking6 wrote: »

kyta32 wrote: »

http://www.ncbi.nlm.nih.gov/pubmed/24307184

Overall, in the the fastest losers were more likely to be successful at achieving and maintaining a 5-10% weight loss. The overall success level at maintaining weight loss over time was very high compared to any other data I've seen, and the participants were all diabetic, so I don't know how generalizable the information is.

Sounds like you're saying that the people who were the best at losing weight were the best at losing weight.

The fastest at losing it lost the most and were more likely to keep it off for 8 years.

brianpperkins

WalkingAlong wrote: »

brianpperkins wrote: »

vismal wrote: »

Losing weight fast doesn't always result in a significantly higher loss in lean mass. There are many factors at work and to say "losing weight quickly causes you lose more lean mass" isn't necessarily correct. The amount of fat you have, the amount of lean mass you have, the amount of protein you take in, your training, all those things come in to play. Someone who is obese with little lean mass to begin with, who trains weights, and gets in adequate protein, can probably lose weight rather rapidly and not worry about lean mass losses. This thought comes from the world of bodybuilding where lean guys/girls become super lean. In that case you cannot lose weight rapidly and retain all your mass, but it's an extremely different case then someone 40 lbs overweight, which in turn is very different than someone 80 lbs overweight.

Nobody in this thread said what you put in quotes.

This is pretty close:
"...rapid loss can include more lost lean body mass..."

Actually, it isn't (the truncated quote is disingenuous at best). Nice try. I guess logic died with Spock.

As stated earlier, to mitigate the loss of lean mass requires some effort on the part of the person losing weight. Protein, exercise, an understanding that it takes more energy to metabolize a pound of fat into energy than a pound of muscle.

nesian_twin

You make this a lifestyle change, not just a temporary "diet" and if you have a setback which we all do it is normal! You make up for it the next day by exercising or whatever

SueInAz

kyta32 wrote: »

sofaking6 wrote: »

kyta32 wrote: »

http://www.ncbi.nlm.nih.gov/pubmed/24307184

Overall, in the the fastest losers were more likely to be successful at achieving and maintaining a 5-10% weight loss. The overall success level at maintaining weight loss over time was very high compared to any other data I've seen, and the participants were all diabetic, so I don't know how generalizable the information is.

Sounds like you're saying that the people who were the best at losing weight were the best at losing weight.

The fastest at losing it lost the most and were more likely to keep it off for 8 years.

Once again, we're talking about the difference between "fast" and "slow". I'm sorry, but 10% of body weight lost in a year is not what I consider to be a "fast" loss. That's a 300 pound person losing 30 pounds in a year. Or, in my case, a 140 pound person dropping to 126 in a year. It's just not a fast loss, it's pretty normal, in fact. When I think "fast" loss it's the 300 pound person winning a weight loss challenge by doing unhealthy things. Or these people who lost the amount of weight listed in about 4 months time by a combination of a severe calorie deficit and 5 or 6 hours each day spent exercising:

Ryan was the first winner of “The Biggest Loser.” He began the competition at 330 pounds and won after losing a staggering 122 pounds. However, since winning the title and cash prize Ryan has gained the weight back currently putting him around the 300 pound mark.

Erik won the Season 3 competition of “Biggest Loser” by losing 214 pounds.

Bill lost 164 pounds on the NBC reality competition. Since the show ended the now spinning instructor gained back 37 pounds.

Ali was the first female winner of “The Biggest Loser.” She lost over 112 pounds on the show.