Several people wrote me last year to send me the link to the New York Times article, "New Goal for the Obese: Zero Gain in Pregnancy."
Believe me, I'd already seen this article and others similar to it. There are SO many things to object to object to or comment on, it was hard to know where to start and I've been spinning my wheels for a long time, trying to find a way to communicate my concerns effectively without a giant rambling reply.
But darn it, this sort of thing needs to be challenged, and currently very few people in the media, the fatosphere, or the birth world are even questioning strict limits on pregnancy weight gain in "obese" women.
So I'm going to ramble away, because this sort of thing must be challenged. Here are a few of my concerns with this specific study and so many of the others like it.
Publicizing the Outcome Before The Study Even Begins
I think the thing that bothers me most in this Kaiser study is that the results are a foregone conclusion.
It floors me that these researchers published an article ---in the New York Times, no less---essentially promoting a conclusion they hadn't even studied yet.
It's not like these researchers had already done the study and concluded from data that gaining no weight in pregnancy was best for obese women.
No no no!! They were just starting the study....so why were they already publicizing their conclusions?
The problem is that these doctors have already made up their minds that little or no weight gain leads to the healthiest outcomes in obese mothers, and that this was the message that needed to be pushed to consumers and other doctors.
It's marketing this message that is their main concern. Why else would they be publicizing their uncompleted research like this?
There is an army of OBs out there who have reverted to the old teachings about the "dangers" of too much weight gain in pregnancy and have a TREMENDOUS agenda to promote extreme restriction of weight gain (or even weight loss) in "obese" women in pregnancy.
These OBs have been aggressively marketing the idea to the press that fat women gain "too much weight" in pregnancy and that restricting such weight gain can improve outcomes. Over and over, we have seen them pushing this agenda with the press. This is just the latest salvo in their campaign.
The phrasing of the NYT article (just look at the title...."New Goal for the Obese: Zero Weight Gain in Pregnancy") also bothers me because many people will scan the article and conclude that the study has already been done and that gaining no weight in pregnancy is best.
In fact, all the article is doing is telling people that they were starting a study to see whether gaining no weight improves outcomes......but many people (including many doctors) probably read the story and believed that gaining no weight is now the standard of care.
These researchers are trying to create an expectation in the public and among birth attendants that this no-gain policy is the new standard of care for obese women, that any gain must be prevented for women of size....and perhaps even that weight loss during pregnancy is the most optimal course of all.
This is what I'm hearing from women of size now....that they are being told to gain little to no weight in pregnancy, and many more are now even being told to lose weight during pregnancy.
In fact, THIS IS NOT THE STANDARD OF CARE AT ALL, nor should it be. There are significant reasons for concern with a policy like this.
Prenatal Weight Gain Politics
The IOM (Institute of Medicine) came out with revised guidelines earlier this year, recommending a new pregnancy gain of 11-20 pounds in obese women.
This is down from a previous recommendation for obese women to gain "at least 15 pounds" (often misreported as "no more than 15 pounds"), but the news wasn't all bad.
The good news was that the IOM resisted pressure to lower the guidelines to NO gain (or even weight loss) for "morbidly obese" women, saying there was not enough evidence in that group to make a decision.
The bad news is that now we are going to see a plethora of studies, intervening and trying to keep "morbidly obese" women from gaining any weight in pregnancy....and no doubt coming to their conclusions ahead of time, just like this study.
My concern is that the studies we will see on this topic will not be fair, rigorous, or powerful enough to really make any decisions about the best course of action.....but that it won't matter, because The Powers That Be have already made up their minds about what's best, and will use bad science to try and push their agenda as part of their "war on obesity."
And I'm afraid of what the price will be for women of size and their babies.
Details on the Study
Here are more details about the study from the Kaiser press release on October 21, 2009.
Believe me, I'd already seen this article and others similar to it. There are SO many things to object to object to or comment on, it was hard to know where to start and I've been spinning my wheels for a long time, trying to find a way to communicate my concerns effectively without a giant rambling reply.
But darn it, this sort of thing needs to be challenged, and currently very few people in the media, the fatosphere, or the birth world are even questioning strict limits on pregnancy weight gain in "obese" women.
So I'm going to ramble away, because this sort of thing must be challenged. Here are a few of my concerns with this specific study and so many of the others like it.
Publicizing the Outcome Before The Study Even Begins
I think the thing that bothers me most in this Kaiser study is that the results are a foregone conclusion.
It floors me that these researchers published an article ---in the New York Times, no less---essentially promoting a conclusion they hadn't even studied yet.
It's not like these researchers had already done the study and concluded from data that gaining no weight in pregnancy was best for obese women.
No no no!! They were just starting the study....so why were they already publicizing their conclusions?
The problem is that these doctors have already made up their minds that little or no weight gain leads to the healthiest outcomes in obese mothers, and that this was the message that needed to be pushed to consumers and other doctors.
It's marketing this message that is their main concern. Why else would they be publicizing their uncompleted research like this?
There is an army of OBs out there who have reverted to the old teachings about the "dangers" of too much weight gain in pregnancy and have a TREMENDOUS agenda to promote extreme restriction of weight gain (or even weight loss) in "obese" women in pregnancy.
These OBs have been aggressively marketing the idea to the press that fat women gain "too much weight" in pregnancy and that restricting such weight gain can improve outcomes. Over and over, we have seen them pushing this agenda with the press. This is just the latest salvo in their campaign.
The phrasing of the NYT article (just look at the title...."New Goal for the Obese: Zero Weight Gain in Pregnancy") also bothers me because many people will scan the article and conclude that the study has already been done and that gaining no weight in pregnancy is best.
In fact, all the article is doing is telling people that they were starting a study to see whether gaining no weight improves outcomes......but many people (including many doctors) probably read the story and believed that gaining no weight is now the standard of care.
These researchers are trying to create an expectation in the public and among birth attendants that this no-gain policy is the new standard of care for obese women, that any gain must be prevented for women of size....and perhaps even that weight loss during pregnancy is the most optimal course of all.
This is what I'm hearing from women of size now....that they are being told to gain little to no weight in pregnancy, and many more are now even being told to lose weight during pregnancy.
In fact, THIS IS NOT THE STANDARD OF CARE AT ALL, nor should it be. There are significant reasons for concern with a policy like this.
Prenatal Weight Gain Politics
The IOM (Institute of Medicine) came out with revised guidelines earlier this year, recommending a new pregnancy gain of 11-20 pounds in obese women.
This is down from a previous recommendation for obese women to gain "at least 15 pounds" (often misreported as "no more than 15 pounds"), but the news wasn't all bad.
The good news was that the IOM resisted pressure to lower the guidelines to NO gain (or even weight loss) for "morbidly obese" women, saying there was not enough evidence in that group to make a decision.
The bad news is that now we are going to see a plethora of studies, intervening and trying to keep "morbidly obese" women from gaining any weight in pregnancy....and no doubt coming to their conclusions ahead of time, just like this study.
My concern is that the studies we will see on this topic will not be fair, rigorous, or powerful enough to really make any decisions about the best course of action.....but that it won't matter, because The Powers That Be have already made up their minds about what's best, and will use bad science to try and push their agenda as part of their "war on obesity."
And I'm afraid of what the price will be for women of size and their babies.
Details on the Study
Here are more details about the study from the Kaiser press release on October 21, 2009.
Kaiser Permanente is launching the first clinical trial to help obese women control their weight during pregnancy. The “Healthy Moms” study, funded by a $2.2 million grant from the National Institute of Child Health and Human Development, will begin recruiting this month.Thoughts on the Kaiser Study
“The goal of the study is to keep obese pregnant women from gaining weight. We believe they can safely maintain their pre-pregnancy weight and deliver healthier babies,” says Kim Vesco, MD, MPH, a practicing OB/GYN and researcher at the Kaiser Permanente Center for Health Research, who will direct the study.
This is the first study to test a weight maintenance program for obese pregnant women, and the first to use weekly support groups as part of the intervention. A small study in Denmark did limit excess weight gain in obese pregnant women, but they still gained an average of 14.5 pounds. Two other larger studies failed to prevent excessive weight gain in obese and overweight pregnant women.
“It may seem counterintuitive to suggest that women control their weight during pregnancy, but these women are already carrying between 50 and 100 extra pounds — and for them any more weight gain could be very dangerous,” said Vic Stevens, PhD, principal investigator who has studied weight loss and weight maintenance for more than 30 years...
The “Healthy Moms” trial will enroll 180 obese pregnant women from Washington and Oregon who are members of the Kaiser Permanente health plan: half will receive one-time dietary and exercise advice; the other half will attend two individual counseling sessions and then weekly group counseling for the remainder of their pregnancy. Women who attend the sessions will be weighed and encouraged to keep and turn in daily food and exercise diaries. Professional weight counselors will facilitate the groups and help motivate the women with behavior change techniques.
The study will follow women throughout their pregnancies to find out how much weight they gain, how large their babies are, and how much weight they retain one year after they give birth. It will also look at birthing complications, the baby’s growth and feeding practices, and whether the mother continues with dietary changes after the baby is born. The study will recruit women for 18 months, and preliminary results are expected in three years.
First off, I should note that I don't object to everything in the study, contrary to what many of the Obesity Mafia would expect.
I think it's very important for women to exercise in pregnancy, and I agree it's good to discourage consumption of things like sweetened drinks and junk food. I don't have a problem with recommending those, and I have no doubt that these interventions probably will be associated with lower risks of some complications in pregnancy.
Nor do I think that obese women gaining little weight is automatically dangerous. I personally had a net gain of about 5 pounds in my pregnancies (lost 10 lbs., then gained back 15)...not because I was trying to limit my gain, was eating "better" than usual, or because I had a lot of nausea, but simply because pregnancy revs up my metabolism in a major way.
I know from personal experience that you can have a perfectly healthy pregnancy with a very small gain. Some fat women do gain very little in pregnancy, not because they have "healthier" nutrition than those who do gain, but simply because pregnancy changes their metabolism more.
My concern is promoting no weight gain as a goal for ALL obese women, and using potentially draconian means to get it. Many women can't achieve null weight gain without drastically limiting calories and thereby nutrients. In what way is that healthy?
The research (in other weight-limitation studies) shows that many "obese" women have difficulty meeting weight gain limits of 15 lbs. already. Not because they are pigs and can't lay off the french fries and bon-bons, but simply because most pregnant women, including fat women, gain at least the weight of the baby, placenta, and extra fluids in pregnancy.
In addition, many women of size who are chronic dieters or who have lost weight before pregnancy gain more during pregnancy because their bodies compensate physiologically to have enough energy for birth and breastfeeding. The body thinks it's starving, so it becomes more efficient and stores up more fat for reserves, even with normal eating.
So is it really realistic and fair to make fat women gain NO weight in pregnancy and to make them feel guilty if they do gain weight, despite eating well? I don't think it is. I think it sets them up for failure, for feeling guilty, and for disordered eating.
I think it puts the goal on the surrogate target of weight gain, when it really ought to be putting the target on the real goal...healthy nutrition, healthy baby, and healthy mommy.
If Only....
Wouldn't it be nice if this study had a Health At Every Size (HAES) component to it? If they had a group where increased exercise and reasonable eating guidelines were promoted, yet the emphasis was simply on really excellent nutrition and exercise, regardless of actual gain?
Wouldn't it be nice if there were a group where women weren't made to feel like failures if they gained pregnancy weight despite doing everything "right"?
And wouldn't it be great if they compared long-term maternal and fetal outcomes, long-term healthy eating practices, and long-term weight outcomes from each program to see which had the best results?
I have a hunch the results would be similar to the U.C. Davis HAES study, which found that emphasizing healthy habits along with body acceptance resulted in better long-term health outcomes than emphasizing weight loss.
I know, I know....it's a pipe dream. When doctors are convinced that strictly limiting weight gain is the "magic bullet" to preventing complications in the pregnancies of women of size and preventing obesity in their offspring, it's too much to hope for that they could mentally uncouple healthful habits from restricted gain. They simply cannot separate one goal from the other; in their minds, the two are always connected.
But very low weight gains are already difficult for many women to achieve; lowering the bar to even more restrictive gain is not going to be any more effective or achievable. Furthermore, weight gain is a poor surrogate for fetal outcome in most cases, so making that the focus does little to promote fetal health.
Perhaps what they should be doing instead is emphasizing healthy habits and long-term outcomes...healthy nutrition, healthy baby, and healthy mommy...over actual numbers on a scale.
Next up: Study Design Issues and Long-Term Safety Concerns in these "restrictive weight gain" studies.