Dorsey practices meditation for 10 days a year. He starts each day with "salt juice", which is water with Himalayan salt and lemon added; Twitter makes this available at its offices around the world. Before going to work each day, he alternates several times between using a home electromagnetic field-blocking infrared sauna and an ice bath (the latter is normally a legitimate treatment for people with high fevers). He fasts from Friday evening until Sunday evening, and only eats one low carbohydrate meal on other days. Dorsey began his fasting regimen in 2017 after viewing the film Fasting. Dorsey also takes a multivitamin as well as "a lot of vitamin C",[note 1] which probably does nothing but could
give him the runs be compensatory for his dietary deficiencies.
Because of his unusual dietary habits, Dorsey has been accused of promoting eating disorders, for this is what it is even if the tech bros call it "biohacking". According to a UK dietitian, Dorsey's diet is dangerous since he likely runs a constant calorie deficit.
Even though he is so busy running two multi-billion dollar companies, he still finds time to promote his brand of crankery. His nose ring shows that he is a leader and that you too can be led around like a water buffalo if you buy his promoted products.
- Gwyneth Paltrow, whom the New York Times has compared Dorsey to unfavorably
- Soylent — another techbro biohack
- Steve Jobs
- Dorsey didn't say how much "a lot" is, but 2000 mg is the maximum recommended dose per day, which if exceeded can cause gastrointestinal disturbances, increased oxalate excretion and kidney stone formation, increased uric acid excretion, excess iron absorption, lowered vitamin B12 levels, systemic conditioning, pro-oxidant effects.
- Top UK dietitian weighs in on Jack Dorsey’s bizarre diet (it’s risky!) by Matthew Hughes (April 15, 2019) The Next Web.
- Jack Dorsey Is Gwyneth Paltrow for Silicon Valley by Nellie Bowles (May 2, 2019) The New York Times.
- Billionaire Jack Dorsey’s 11 'wellness' habits: From no food all weekend to ice baths by Catherine Clifford (Published Mon, Apr 8 2019 • 10:10 AM EDT Updated Tue, Apr 9 2019 • 4:24 PM EDT) CNBC.
- Watched this documentary on fasting. Good. For the past year and a half I've been eating only one meal a day: dinner. Not for everyone, but it works for me. Non-intuitive, but I find I have a lot more energy and focus, feel healthier and happier, and my sleep is much deeper. by Jack Dorsey (17 Jul 2018) Twitter (archived from May 3, 2019).
- Nutrient Recommendations: Dietary Reference Intakes (DRI) National Institutes of Health Office of Dietary Supplements (2011).
- Zeratsky, Katherine. "Is it possible to take too much vitamin C?" Mayo Clinic, https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/vitamin-c/faq-20058030. Accessed May 14th, 2019
- Jack Dorsey’s 5-meals-a-week diet looks a lot like a Silicon Valley-style eating disorder. From keto to fasting to 5:2 to hundreds of supplements, the tech world’s food “bio-hacking” is just another word for disordered eating.by Sarah Manavs (10 April 2019) New Statesman.
- Jack Dorsey Got a Nose Ring by Sam Schube (June 8, 2018) GQ.