Questions and answers about LCHF

Frågor och svar om LCHFHere are common questions and answers about low carb high fat (LCHF) nutrition and health:

Is saturated fat dangerous?

No. That is an old and disproven theory. It’s been a mistake from the beginning. More.

I started eating LCHF / very low carb and I feel dizzy / a headache / tired?

Dizziness / headaches and similar symtoms are common during the first week as your body adapt to a very low carb diet. These symptoms usually go away in a few days.

Adding a bit more carbs to the meals reduces the symptoms but can slow the adaptation (and weight loss).

Another possibility is that you are dehydrated / low on salt. When starting a very low carb there is extra loss of salt and fluids through the kidneys in the first weeks, until the body adapts. Drinking some extra fluid and putting some extra salt on your food during the first week can avoid this problem and often cures the symptoms. Alternatively you can drink some buillon a few times a day.

Do you use blood pressure medication? A very low carb diet can lower high blood pressure, and medication may need to be reduced in that case. Low blood pressure may result in dizziness.

Why are Asian rice eaters thin?

Probably because they do not eat a lot of sugar or refined starch. More.

What about gallstones and LCHF?

High fat food can give you short term trouble if you already have gallstones. Low fat food gives you gallstones in the long term. More.

Can you eat LCHF if you’ve had your gallbladder removed? Yes.

Can you eat low carb cookies / bread / pasta and lose weight?

That is probably not a good idea:

Do you get cancer from eating red meat?

Highly unlikely, although favoring unprocessed meat is the healthiest choice. Replacing meat with processed carbs may be one of the worst things you can do for your health and weight. More. 

Do you get hypothyroidism on a very low carb diet?

No, hardly on a well-formulated low carb diet, meaning you replace the energy from carbs by eating more fat. In scientific studies on LCHF there are no problems with the thyroid and I see no new thyroid issues in my patients going strictly low carb.

However, starvation can lead to hypothyroidism, and if you remove carbs AND fat from your diet you will be starving. So you do need to eat carbs or fat to fuel your body.

Bottom line: A LCHF diet is fine for your thyroid. More.

Is there scientific proof that LCHF is good for weight / blood sugar / cholesterol / blood pressure?


Are studies showing better weight loss on low carb diets sponsored by the meat industry or the Atkins foundation?

Yes, a few of them are. But repeated independent studies show the same results.

Does insulin play a role in weight gain / loss?

Yes, it’s absolutely crucial in most cases. Some bloggers have objections but they do not change biochemical facts. More.

Can you drink alcohol on LCHF?

Sure, in moderate amounts. But beer and sweet drinks need to be avoided. Choose wine or non-sweetened liquor. More.

Is salt dangerous?

No. At least not in moderate amounts. More.

What’s a good LCHF breakfast except for eggs?

Perhaps this.

Can you eat fruit on LCHF?

Only occasionally, as an exception, if you want to be strict and get the maximum effect. Fruit contains a lot of sugar. Fruit is candy from nature.

Why are Americans obese?

This is why.

More knowledge

This talk by me from the Ancestral Health Symposium 2011 summarizes the history and science behind the ongoing revolution in diet and health.

More theory and practice

Here four of the world’s biggest experts on the subject explain the theory and practice of various kinds of carb restriction:

Do you have more questions?

Here’s more Q & A from my mailbox.

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  1. Annie
    I am on week 2 of LCHF diet but have put weight on. Is this normal? I have not cheated.
    I have eaten a lot of full fat yogurt!!
    Reply: #465
  2. Barbara Morris
    Is the low carb label on Mission Tortillas a lie?
    Reply: #453
  3. Zepp
    They say its 50% carbs.. the rest is fibers.. and if it taste like shit.. its true!
  4. thotho
    i am 35 years old and i want to try the LCHF but i am on herbalife program drinking formula 1 shake mix as a meal replacement for breakfast and lunch and eat normal at dinner, how bad is it,should i stop drinking the shake as i want to start the LCHF? PLEASE HELP!!!!
    Reply: #455
  5. Zepp
    Yeah spend your money on real food instead!

    You know this Herbalife. is just low calories.. you can eat real food and make it less calories if you want!

    Here is a way to say it!

  6. Boris
    Hi everyone...
    This was probably discussed here already but there are just to many comments to read them all.
    So i'm sorry if this is a repost...

    So i'm eating LCHF for a couple of days now... I like it, i feel better and everything... BUT....

    I'm constantly hungry! When i eat i feel like i could just eat huge amounts of food and never get full... And even if i somehow manage to eat so that i feel full at the moment... i somehow feel hungry after an hour or so... And it's driving me nuts...

    Also is eating like 4 eggs every day too much? Or are eggs ok no matter the quantity?

    Thanks for any kind of help!

    Reply: #457
  7. Zepp
    Its lack of glucose spikes.. and if one get those one get a reward.. namly Dopamin.. then you get satisfyed!

    Its about eating for reward!

    It goes over after some more days.. at least if you get your energy/fat/calories.

    One shouldnt eat more then 20 eggs whith majo a day.. becuse then it gonna be excesses of calories.

    Eggs is one of the most nutrient food one can eat.

  8. Shirin
    Hi Doc :)

    I am sort of following the Paleo but with a bit of dairy and I have a question regarding the carb issue - I make a seed cracker that has chia, pepitas, sunflower seeds, white & black sesame seeds and flax seeds which I eat with lots of butter (yummy!) - would this be considered as too much carb? Also, for nuts (which I love) - how much is too much?
    Thanks for your reply!
    Shirin :)

    Reply: #459
  9. Zepp
    Its only you and your medical/metbolic conditition that can answer that!

    You know there are many people that eat a lot more carbs then that.. and are healty!

    If you eats proper meals and take those crackers for evening tea or at breakfast it cant do any harm.. I think!

    And it goes for nuts too.. nuts are not real meals.. they are tasty, some of them have kind of benefits.. like RS, minerals, fats and so on.

    Soo.. as long nuts and cracker dont is instead of real meals they are part of healty life style.

  10. amber
    Like some people bread is not my problem, it's sweets. I have found that peanut butter and whipped cream calms my cravings. Is it bad to eat that, if not how much is too much in a day?
  11. Melly
    Hello, love this site!

    I'm looking for more ideas for a vegetarian following LCHF. Resources, support and ideas. Thank you, Melly

  12. Zepp
    Start here !

    And later Google "Low carb vegetarian".. there are lots of links, but I dont know wich is good!

    Laura Dolson is however well knowed!

  13. Rafiq
    I was diagnosed type 2 type 2 diabetic 3 weeks ago. I started LCHF and I have lost 4 kg already.I am 58 ears old and have always continued to play 5 a side football with guys who are aged between 16 and 30 who are friends of my son. In the last 2 years I have begun to slow down and was considering packing up. I felt very stiff after games and increasingly asthmatic. Since my LCHF diet started apart from the first week when I felt quite weak, my stamina, my breathing capacity and my mobility has improved remarkably. Last night my energy levels were such that I could no stop running and my circulation and sweating just felt great. The youngsters could not believe where I had got all the energy from and nor could I. It is like a miracle. My target was to play till 60 but now I am thinking of revising my target to 65. Had I not been diagnosed as a diabetic I would never have changed my diet because I always thought it was about eating less. I will send photos of me playing footbal soon.!!
    Reply: #464
  14. Zepp
    Yes, send in your sucess story!

    "Do you have a success story you want to share on this blog? Send it (photos appreciated) to Let me know if it’s OK to publish your photo and name or if you’d rather remain anonymous."

    In the meen time you can watch this excelent video frome Australia!

    "Low Carb Diet: Fat Or Fiction "

  15. pearl
    hope this is not too late -eat less yogurt and increase butter
  16. Paul Waulker
    Trying to get on top of this however I'm having difficulty coming to terms with a few things. Grains are apparently out, however seeds are permissible. They way I see it, beans must surely be seeds since they are not in heads as in grains. Why are they not included?

    As I'm on Warfarin I am limited to the amount of green intake or should I say it must be daily which can be not a likely scenario. Tomatoes are suppose to be a "health" item in particular to prostate health etc, what is the alternative?

    Thanks for you input.

    Reply: #467
  17. Zepp
    Its becuse moste of them is high in carbs, goes for lentils too.

    Well you have a special condition.. otherwise one recomend people to eat ther veggies, many eats to litle veggies frome the beginning!

    Becuse, if you cut out tubers, moste fruit, limiting dairys, limiting beans and lentils cuts out all seeds, one probably need the veggies for water soluble vitamines!

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