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MIT senior research scientist Dr. Stephanie Seneff has been publishing some well-documented and logical thought pieces on how the Monsanto weed killer Roundup may be fueling the world's obesity epidemic. But these are thought pieces, not new research.

It is not without reason that Monsanto is one of the most hated companies in the world.

Until 1977, Monsanto made 99% of the polychlorinated biphenyl compounds (PCBs) used in the United States. These became a nearly ubiquitous source of cancer-causing environmental toxins that persist in water and land even today.

Until 2008, Monsanto made recombinant bovine Somatotropin (also known as rBST or rBGH), an artifical hormone injected into milk cows to force them to produce more milk, believed to have similar effects in humans, including male humans.

Monsanto developed terminator seeds, which produce a crop that cannot be saved for seed, forcing growers to buy all their seed from the biotech firm.

It did research in designer genes for hogs, and became famous for suing family farmers who saved their seeds, causing hundreds of families to go into bankruptcy, to protect its patents on genetically modified corn.

And now Massachusetts Institute of Technology electrical engineering professor Dr. Stephanie Seneff alleges that the Monsanto herbicide Roundup, which contains the active ingredient glyphosate, is a likely culprit in the worldwide epidemic of obesity.

Dr. Seneff's Case Against Roundup

Monsanto introduced the world to the herbicide Roundup in 1975. As hard as it may be to believe now, in 1975 obesity was a relatively rare condition. In 1975, fewer than 3% of people in the United Kingdom were obese. By 1999, 27.5% of Britons were obese, and in 2013, 2/3 of Britons are overweight or obese.

In the United States in 1975, about 11% of men and 16% of women were obese. In 2013, the percentages were 36% for men and 37% for women. And in South Africa, the nation in Africa that uses the most Roundup, obesity was essentially unknown in 1975 but by 2011 fully one-third of black South African women were obese.

Dr. Seneff says that the growth in girth in every country that uses Monsanto Roundup over the last 40 years has a scientific explanation. Seneff blames Roundup for deficiencies in the amino acid trytophan. the brain uses tryptophan to make the feel-good chemical serotonin.

Tryptophan is not easily absorbed into the brain. When trytophan levels in food are low, or the bloodstream concentrations of competing amino acids are high, the brain attempts to make it easier for trytophan to enter the brain by raising blood sugar levels. And to raise blood sugar levels, our brains give us the munchies. A shortage of tryptophan is the reason people eat more when they are depressed, and people eat more to keep from getting depressed.

Roundup's Double Whammy On Brain Health

Seneff says that the glyphosate ingredient in Roundup causes plants to make less tryptophan, so the plant foods we eat contain less trytophan. Glyphosate also causes the friendly, probiotic bacteria in the intestines to release less tryptophan. The net result is greater depression, greater appetite, and greater obesity. Since the introduction of Roundup, Seneff says, since the chemical is pervasive in soil, food, and water, people simply have to eat more to feel right.

Continue reading after recommendations

  • Anthony Samsel and Stephanie Seneff, "Glyphosate's Suppression of Cytochrome P450 Enzymes and Amino Acid Biosynthesis by the Gut Microbiome: Pathways to Modern Diseases" Entropy 2013, 15(4), 1416-1463
  • doi:10.3390/e15041416.
  • Stephanie Seneff, Robert M. Davidson and Jingjing Liu, "Is Cholesterol Sulfate Deficiency a Common Factor in Preeclampsia, Autism, and Pernicious Anemia?" Entropy 2012, 14, 2265-2290
  • doi:10.3390/e14112265.
  • Photo courtesy of Nicole Mays by Flickr : www.flickr.com/photos/mnicolem/2497786292/
  • Photo courtesy of cheeseslave by Flickr : www.flickr.com/photos/ammichaels/8138886831/