When I wrote about Soylent and Silicon Valley’s quest to reinvent food for TechCrunch I checked with a registered dietician from the Oregon Health and Science University about stuff. She was pretty down on it. So was the dietician consulted by Business Insider. And now io9′s Lauren Davis has talked to three more experts:
We reached out to a handful of nutritional scientists to get their opinions on the product, and they were generally surprised that anyone would want to replace their food with a single mixture. Their opinions of Soylent were overwhelmingly negative. Steve Collins, founder and chairman of Valid Nutrition, a company that manufactures Ready to Use Foods for the prevention and treatment of malnutrition, said, speaking through a colleague, that, except in exceptional circumstances, he felt that trying to replace a diverse diet with a single product was misguided. Susan Roberts, Professor at Tufts University’s Friedman School of Nutrition Science and Policy, likened Soylent to already available nutritional shakes. While there might be some benefit to Soylent’s low saturated fat content, she said, there are certain risks inherent in a non-food diet. “[T]here are so many unknown chemicals in fruits and vegetables that they will not be able to duplicate in a formula exactly,” she said in an email. She says that, if Soylent is formulated properly, a person could certainly live on it, but she doubts they would experience optimal health. She fears that in the long-term, a food-free diet could open a person up to chronic health issues.
Tracy Anthony, Associate Professor of Nutritional Sciences at Rutgers University, speaking to us in an email, criticized the formula specifically.
The Soylent company has now released an ingredient list and it’s much more “food like” than creator Rob Rhinehart had implied previously:
-Oat Powder (carbs, fiber, protein, fat)
-Whey Isolate (protein)
-Grapeseed Oil (fat)
-Powdered Soy Lecithin
-Ferrous Gluconate (Iron)