Is less protein good for ketosis, longevity and cancer prevention?

Is it better to eat more protein, or less? This question is intensively debated in the low-carb and keto community.

Dr. Ted Naiman is one of the most influential experts who believes that more protein is better and recommends a higher intake. In this interview he sits down with Dr. Andreas Eenfeldt and explains his viewpoint in depth, and how he believes that people should plan their protein intake.

Watch a part of the interview above, where Dr. Naiman answers whether he thinks lower protein is good for ketosis, longevity and cancer prevention (transcript). The full interview is available (with captions and transcript) with a free trial or membership:

Why more protein is better – Dr. Ted Naiman

Join free for a month to get instant access to this and hundreds of other low-carb videos. Plus Q&A with experts and our awesome low-carb meal-plan service.

More with Dr. Naiman


  1. Peter
    Great interview Andreas...thank you..
    My next steak will taste even better...
  2. Steve
    So the best things to eat are ribeye steaks and eggs from pasture raised animals! Love it! Those have been my foods on my journey to

    Remission !!!

    I am in remission from high volume aggressive metastatic prostate cancer as well as type 2 diabetes.

    Summer 2011: diagnosed with aggressive prostate cancer (Gleason score of 10 out of 10).

    Fall 2011: hormone therapy (androgen deprivation) + external radiation treatments (prostate removal not possible because cancer had spread a little beyond the prostate - T3N1)

    Summer 2016: chemo therapy because cancer had metastasized to bone sites, mostly on spine.

    At this time I was also following a low carbohydrate high fat diet (LCHF) that had successfully put my type 2 diabetes in remission. I experienced no nausea during chemo, so took no medication for it, due to my LCHF diet I think.

    Type 2 diabetes is caused by too much insulin being secreted by the pancreas; a metabolic disease. An alternate school of thought in cancer theory and research is that cancer is also a metabolic disease, not caused by genes.

    So I decided to double down on my diet / lifestyle and remove essentially all carbohydrates from my diet (no foods from plants - like our ancestors before agriculture).

    After a few months my oncologist declared my cancer in remission, saying it was "remarkable" and to "keep doing what you're doing."

    One side effect of hormone therapy is bone loss; osteopenia to osteoporosis. Lately mine has gotten worse. So, since I'm in cancer remission, I've gotten my oncologist to agree to intermittent hormone therapy and have stopped getting the injections (so now I'm getting NO "standard of care" treatments or medications). My oncologist wrote,

    "Certainly we could consider intermittent therapy. You do have a very aggressive cancer, successfully controlled, so we would have to be very careful. ... Note: it may take 6 - 12 months for testosterone to rise."

    All cells express appropriate hormone receptors on their surface membranes. Prostate cells express testosterone receptors and hormone therapy drives testosterone levels very low. But all cells express insulin receptors and cancer cells express an over abundance of insulin receptors because they need to collect a huge amount of glucose to use as building blocks to drive their growth. That's what I'm now targeting with my no-plant (zero carbs) diet, an extremely low insulin level to deprive cancer cells of their building blocks.

    Meanwhile, normal cells can get their energy requirements from fatty acids and ketones (which cancer cells can't use because of their uniquely deranged​ / damaged​ metabolism).

    I hope others can learn from my n=1 experiment, but they should expect only negative reactions, sometimes very emotional, from their doctors and dietitians. The best you will probably get, as did I, is "keep doing what you're doing."


    Above from my post,

    Reply: #4
  3. Bruce Jones
    What about with impaired kidney function?
    Reply: #10
  4. Shelly
    That’s incredible, Steve! Thank you for sharing your story.
  5. FC
    Ok, you can eat bunch of protein and stay in ketosis, but do you know that glucose is not the only thing in the body?
    Excess methionine depletes essential methylation nutrients that are used up for recycling of toxic homocysteine.
    Excess leucine which acts like oxidant, suppress mTOR and rises IGF-1. May lead to liver and brain damage.
    Also studies show that protein restriction equals most benefits of calorie restriction and fasting. It can extend lifespan of fruitflies up to 67% and rats up to 40%.
    Protein need to be balanced with methylation nutrients.
  6. FC
    increases mTOR, my bad
    increases ammonia
  7. 1 comment removed
  8. Gentiann
    I have never noticed that ...
    However, I feel the same way when I see vegan advocates : they always look older than they are..
  9. Janet
    Ok. I’m a 70 yo woman. I am eating what I think is “moderate” protein. When I was younger we all ate on dinner plates about the size of salad plates now. Orange juice from tiny glasses called “juice glasses” no vending machines at my school. People were much thinner and I don’t remember anyone in my small high school that was so overweight as they are now. Portion size is so out of whack that no wonder we are fat and sick. I eat now from one of those “antique “ plates😁. So I use a protein portion that looks comfortable and reasonable on that plate. Weighing and worrying is too stressful. I upped my protein sources (clean) up a bit because I am working out harder and as I age I need more. I’m trying to use the same reasoning for my veg, salads and such. Works for me. Maybe more butter and bacon because although we had bacon as kids we were limited. Now if I want it, I have it. 😁
  10. Chris
    Should help with impaired kidney function.
  11. juancarlos viveros
    excelente opinión, mas carne al menú, gracias por la aportación

Leave a reply

Reply to comment #0 by

Older posts