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This article is about the psychologist and scientist. For the professional football player, see Seth Roberts (American football).

Seth Roberts (August 17, 1953 – April 26, 2014) was a professor of psychology at Tsinghua University in Beijing and emeritus professor of psychology at the University of California, Berkeley. A prolific blogger, He was the author of the bestselling book The Shangri-La Diet.[2][3] He was well known for his work in self-experimentation which led to many discoveries, including his personal diet, multiple publications and his expansive blog.[4]

Roberts’s work has been featured in The New York Times Magazine and The Scientist.[2][5] He was also a contributor to Spy and a member of the university’s Center for Weight and Health.[6][7]

Self-experimentation

In the early 1980s, Roberts suffered from insomnia. Through self-experimentation, he set out to solve this problem by varying aspects of his lifestyle, like exercise and calcium intake.[8] After many failures to see an improvement in his sleep, he eventually discovered that delaying breakfast, seeing faces in the morning, morning light, and standing solved this problem.[9] When Roberts discovered a trend or solution, he typically looked backwards evolutionarily for an explanation.[10] Roberts would later apply this method to solving problems in health, sleep, and mood, among other things.

The generalized validity of Robert’s conclusions have been questioned by scientists who assert that his experiments lacked a control group, were not blinded, and were potentially biased.[11]

Roberts was called the “champion of self-experimentation” for his contributions to the field.[4] Professor Tyler Cowen called Roberts’ theme of experimenting on the self the “highest stage of science”.[12]

The Shangri-La Diet

Main article: The Shangri-La Diet

As a graduate student, Roberts studied animal learning, specifically “rat psychology”.[13] After Roberts read a report by Israel Ramirez studying the effect of saccharin on weight gain in rats, he thought of his new theory “in seconds”.[14] Roberts tried about ten different variations, such as eating sushi, eating foods with low glycemic index, and drinking vinegar, before arriving at the Shangri La Diet.[13]

Roberts argued that weight is controlled by maintaining body weight at a certain amount, referred to as a “set point”. When weight is above the set point, appetite decreases, and it takes less food to feel full. When weight is below the set point, appetite increases, and it takes more food to feel full.[15] He further stated that eating strongly flavored foods (like soda or donuts) can raise the set point, whereas flavorless foods (like sugar water, canola oil, extra light olive oil) can lower the set point.[16] These flavorless foods must be consumed in a “flavorless window,” at least one hour after and one hour before consuming flavors. Consumption of 100-400 flavorless calories per day lowers the set point, and therefore, lowers weight.

The name is taken from the fictional Shangri-La, a reference Roberts explained by stating that Shangri-La is a “very peaceful place. My diet puts people at peace with food.”[13]

The diet has been endorsed or mentioned by Tyler Cowen, Stephen Dubner, Tim Ferriss, Tucker Max and Wired Magazine writer Gary Wolf.[2][17][18][19][20] It was criticized by UCLA nutritionist Dr. John Ford.[21]

Book

Through word of mouth, the book became a New York Times bestseller.[22] It made it as high as #2 on Amazon.com‘s bestseller list.[23] At one point in 2006, Roberts’ book was ranked #3 on Amazon while on Freakonomics, a friend and early supporter of the book, it was ranked #4.[24]

The Shangri-La Diet was also featured on Good Morning America, where journalist Diane Sawyer tried a tablespoon of olive oil.[25][26]

Criticism of Ranjit Chandra

In September 2001, Dr. Ranjit Chandra, a prominent nutrition researcher, published a study about the effects of vitamin supplementation on the cognitive functions of the elderly.[27] Roberts and Saul Sternberg, a psychology professor at the University of Pennsylvania, discovered inconsistencies in the data presented, specifically in the data distribution and standard deviation.[28] Roberts is quoted as stating “the results were not just implausible, they were impossible.”[further explanation needed][29] The story received recognition in both the British Medical Journal and the New York Times.[29][30] The CBC ran a three-part documentary about the controversy called “The Secret Life of Dr. Chandra”.[31] In 2005, Nutrition issued a retraction of Chandra’s original paper.[32]

Death

Roberts died on Saturday, April 26, 2014. He collapsed while hiking near his home in Berkeley, California.[1] Occlusive coronary artery disease and cardiomegaly contributed to his death.[33]

See also

References

  1. ^ a b “Seth”. Seth Roberts Blog. 27 April 2014. Retrieved 27 April 2014.
  2. ^ a b c Dubner; Levitt (September 11, 2005). “Does the Truth Lie Within? The Accidental Diet”. New York Times Magazine.
  3. ^ “About the Author”. SethRoberts.net. Archived from the original on 2008-07-04.
  4. ^ a b Frauenfelder, Mark (June 1, 2008). “Seth Roberts’ fascinating self-experiments”.
  5. ^ Slack, Gordy. “The Self-Experimenter”. p. 24. Archived from the original on 2008-06-30.
  6. ^ “Spy Magazine Articles”. Seth Roberts. Archived from the original on 2008-05-11.
  7. ^ “Interview with Gary Taubes (Part 7)”. February 7, 2008. Archived from the original on 2008-06-30.
  8. ^ Minkel, J. R. (March 18, 2008). “Self-Experimenter freed himself from insomnia, acne, and love handles”. Scientific American.
  9. ^ Roberts, Seth (2004). “Self-experimentation as a source for new ideas: Ten examples about sleep, mood, health, and weight”.
  10. ^ Dubner; Levitt (September 11, 2005). “Does the Truth Lie Within? The Accidental Diet”. New York Times Magazine. Once he stumbled upon this solution, Roberts, like many scientists, looked back to the Stone Age for explication.
  11. ^ Dubner; Levitt (September 11, 2005). “Does the Truth Lie Within? The Accidental Diet”. New York Times Magazine. Many modern scientists dismiss it as being not nearly scientific enough: there is no obvious control group, and you can hardly run a double-blind experiment when the researcher and subject are the same person. But might the not-quite-scientific nature of self-experimentation also be a good thing? A great many laboratory-based scientific experiments, especially those in the medical field, are later revealed to have been marred by poor methodology or blatant self-interest.
  12. ^ Cowen, Tyler. “Self-Experimentation”. Seth realizes that the self is often the last thing we know and discovering the self is the highest stage of science not to mention performance art.
  13. ^ a b c “Interview with Author Dr. Seth Roberts”. The Diet Channel.
  14. ^ Ramirez, Israel (September 25, 1989). “Stimulation of Energy Intake and Growth by Saccharin in Rats”.
  15. ^ Roberts, Seth (2007) [2006]. The Shangri-La Diet: The No Hunger Eat Anything Weight-Loss Plan. Perigee Books. ISBN 978-0399533167.
  16. ^ “A Spoonful of Sugar” (PDF) (Book Review). Archived from the original (PDF) on 2008-05-13. {{cite magazine}}: Cite magazine requires |magazine= (help)
  17. ^ Cowen, Tyler (April 7, 2006). “The Shangri-La Diet”. Marginal Revolution.
  18. ^ Ferriss, Tim. “Relax Like A Pro: Five Steps to Hacking Your Sleep”. thanks Seth Roberts, PHD. for this tip
  19. ^ “Tipping the Scales”. Rudius Media Messageboards.
  20. ^ Wolf, Gary (June 2, 2008). “Annals of Self-Experiment – Seth Roberts is His Own Mouse”. Gary Wolf blog. Im becoming a devoted fan of Seth Robert’s, one of the great champion of self-experimentation.
  21. ^ Ford, John. “Troubles in Shangri-La]”. TCSDaily. Archived from the original on 2011-11-12.
  22. ^ [1] May 21st, 2006. New York Times Bestseller list.
  23. ^ Shangri La De Da Diet in Comic Form Calorie Lab. May 2006
  24. ^ Levitt, Steven (May 5, 2006). “Friends in High Places”. Freakonomics Blog, New York Times. Retrieved 2008-06-26.
  25. ^ “Oil and Water: Key to Weight Loss?”. ABC. November 14, 2005. Retrieved 2008-06-26.
  26. ^ Dubner, Stephen (November 14, 2005). “The Shangri-La Diet, Between Hard Covers”. Freakonomics Blog, New York Times. Retrieved 2008-06-26.
  27. ^ Chandra, Ranjit (April 13, 2001). “Effect of Vitamin and Trace-Element Supplementation on Cognitive Function of the Elderly” (PDF).
  28. ^ Roberts, Sternberg (November 12, 2002). “Letters to the Editor: Do Nutritional Supplements Improve Cognitive Function in the Elderly” (PDF).
  29. ^ a b Brody, Jane (May 6, 2004). “A Top Scientist’s Research is Under Attack”. New York Times. Retrieved 2008-06-28.
  30. ^ White, Caroline (January 10, 2004). “>. BMJ. Retrieved 2008-06-28.
  31. ^ “CBC Documentary”.
  32. ^ “Nutrition Retracts 2001 Paper”. TheScientist.com.
  33. ^ “Seth”. Seth Roberts Blog. 10 May 2014. Retrieved 6 June 2014.

Further reading