Rosie Boycott was the first editor of Spare Rib, a feminist magazine running from the 1970s to the 1990s. Seems that it took her around 40 years to put two and two together and realise that if women went into the workforce and noone had any time to cook proper meals, pretty much everyone might just go and get fat from eating junk food. She explains more in her recent article, Why A Woman's Place Is In The Kitchen
Given the timeframe of women neglecting their household duties:
Today Britain has the dubious distinction of being the largest consumer of ready meals in Europe - everything from Pot Noodles to sophisticated concoctions such as duck à l'orange and chicken à la king. Not only has home cooking declined, but in many households these pre-assembled dishes are consumed individually, all over the house, when and where family members want. Food - once something that brought adults and children together around the kitchen table - is now yet another way to avoid family life.
Today, cook books dominate the bestseller lists: most of them are destined to lie, unused, on kitchen shelves. Schools no longer teach cooking per se, just variants on subjects such as home technology, in which teachers explain to children how microwaves heat up food. Meanwhile, sales of ready meals continue to climb hand in hand with teenage obesity. It may be fanciful to lay the blame for this at the feet of the early feminists, but, without a doubt, our struggle to free women from the sheer drudgery of housework was a small link in the chain.
And the timeframe of the increase in obesity, also known as The Obesity Epidemic, as explained in this article, Obesity Rate Continues Relentless Climb:
38 Percent of women are in the workforce in 1960
64 Percent of women are in the workforce in 2000
We can see a very strong positive correlation between women going into the workforce and the rise in obesity.
From the 1960s to 2004, the prevalence of obesity and overweight in the U.S. has increased at an average rate of 0.3 to 0.9 percentage points across different sociodemographic groups, according to the meta-analysis.
In 1976, about 15.1% of Americans were obese, which rose to 30.9% by 2000, Youfa Wang, Ph.D., M.D, and May A. Beydoun, M.A., of Johns Hopkins reported in Epidemiologic Reviews on the basis of a meta-analysis.
So there you have it. Feminism is making everyone fat. Prominent feminist Rosie Boycott says so.