Does the brain need carbohydrates?

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Low carb can be great for losing weight and lowering blood glucose. But isn’t it dangerous for the brain? Doesn’t the brain need carbohydrates in order to function?

We asked some of the top low-carb doctors in the world to give their quick and spontaneous answers, and made the video above (transcript).

Here are the doctors in the video:

  0:20  Dr. Sarah Hallberg
  1:21  Dr. Rangan Chatterjee
  1:48  Dr. Jason Fung
  3:59  Dr. Peter Brukner
  4:54  Dr. Eric Westman


Do you want to check out one more of these videos? These are many more, with doctors answering more of the most common and important low-carb related questions:

Top videos about low carb


  1. bill
    I like this new music better.
  2. Keith
    "Does the Brain need Carbs" best answers Dr Jason Fung and Dr Peter Brukner who mentioned Gluconeogenesis the livers and kidneys ability to produce new glucose from the break down of protein and fatty acids. Dr Fung described it extremely well.

    Anyone wanting to know more about LCHF and Alzheimers I recommend "The Alzheimers Antidote" by Amy Berger (kindle book on amazon) very easy to read and up to date describing how glucose/fatty acids (from lipolysis and gluconeogenesis) are able to cross the brain barrier and the fact that while Alzheimers can have multifactorial causes responsible for parts of the brain being starved of glucose (genetic/environmental and diet with usually hippocampus most obvious is affected first) it can be slowed by LCHF and that early intervention in at risk people (before cognitive decline for most thats in their 30's) the disease can be halted in its progression to a much later age by LCHF and drug presciption.

    Would be good to see more videos on condtions that are not MetSys such as Alzheimers and IBS/Crohns/Colitis. Recent video of "A life without Migraines" interviewing Elena Gross is one example.

  3. Rebecca
    How about a baby's developing brain? I'm finding answers all over the place about carb needs during pregnancy. Does a developing brain needs more carbs than an established brain? Or are protein and natural fats still optimal, since that little brain is built from them?

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