Low Carb

How Low Carb is Low Carb?

How few carbs are there in a low-carb diet? It depends. It depends on what you’re trying to achieve and who you are.

Generally speaking, the fewer carbs the more effective it will be. Faster weight loss without hunger. More rapid and powerful reversal of type 2 diabetes. But also more restrictive and possibly more challenging.

Here are three examples of how a low-carb meal can look, depending on how many carbs you eat per day (the yellow stuff is delicious herb butter).



Under 20 grams per dayStrict low carb(this meal: 6 grams)


20-50 grams per daymoderate low carb(this meal: 16 grams)


50-100 grams per dayLiberal low carb(this meal, including
sweet potatoes: 37 grams)

Our definition

Here’s the way we define different levels of low carb at Diet Doctor:

  • Ketogenic low carb <20 gram carbs per day. This is a ketogenic diet (if protein intake is moderate). This level is defined as below 4 energy percent carbs in our recipes, where we also keep the protein level low or moderate (excess protein is converted to carbohydrates in the body). Previously we often called this “strict low carb”, but as the word “keto” or “ketogenic” became commonly used we switched to only use this term, for simplicity.
  • Moderate low carb 20-50 grams per day. This level is defined as between 4-10 E% carbs in our recipes
  • Liberal low carb 50-100 grams per day. This means 10-20 E% carbs in our recipes

For comparison, a regular Western diet can easily contain 250 grams of carbs or more in a day, most of them bad refined carbs, including sugar.


The above numbers refer to digestible carbs, and discount the fibre. You can deduct them from your carb counts, i.e. eat all the natural fibre you want from vegetables, for example.

Another word for digestible carbs, with the fiber deducted, is “net carbs”.

However, don’t be fooled by the label “net carbs” on processed products, like chocolate bars. That’s usually just a way to trick you, and these products are often full of sugar alcohols with negative effects on your weight and blood sugar. I suggest not eating anything with the words “net carbs” printed on it.

An effective low-carb diet should be based on real food. Learn more


How to choose

Some people need to keep the carbs very low for maximum effect – a strict low-carb diet. This includes many people with significant weight issues, diabetes (mainly type 2) and food or sugar addiction, for example.

Others – less carb-intolerant people – do great on a more liberal low-carb diet. This also minimizes the risk of any side effects.

A third group of healthy, lean, active people may not even need to eat very low carb, as long as they mainly eat unprocessed slow carbs.

If you want to start doing low carb, I suggest starting out on a strict version, just to experience the power of it. Later, as you hopefully approach your weight and health goals, you can try adding more natural carbs to see how much you tolerate.

Here’s a two-week guide to a strict low-carb diet.

Meal plans

Get lots of weekly low-carb meal plans, complete with shopping lists and everything, with our premium meal planner tool (free trial).


Low Carb for Beginners

Low-Carb Recipes – marked strict, moderate or liberal

A Ketogenic Diet for Beginners (strict low carb)

Low-carb basics videos

How to eat LCHF4.5 out of 5 stars5 stars71%4 stars14%3 stars8%2 stars3%1 star3%1097 ratings1,09711:18 How to Do an LCHF Diet – Dr. Eric Westman4.6 out of 5 stars5 stars77%4 stars12%3 stars6%2 stars1%1 star1%177 ratings1771:00:45The 5 common mistakes on LCHF4.6 out of 5 stars5 stars82%4 stars8%3 stars1%2 stars2%1 star4%240 ratings24009:25


LCHF means low carb, high fat. It’s the only way to successfully do a low-carb diet long term.

Low Carb Made Easy How to Lose Weight Low-Carb Recipes Low-Carb Success Stories
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  1. annemarie
    Hey im on low carb at the moment 30 to 50 thinking of moving to 50 to 100 can anyone give me advice on how to do this without any side effects? Or what are the most common side effects thanks😊
  2. Darlene
    I have had success in the past with LCHF eating. I lost 22 pounds. I felt great had lots of energy, my skin was clear and the brain fog was gone along with the headaches. I have not eaten gluten or processed food for 10 years so it wasn't a difficult adjustment for me.
    I have increased my carb intake from low to moderate and have had an increase of 15 pounds in the past 5 months so I reduced the carbs back to the low carb meal plan. I have not had success with it this time, i go down a couple of pounds then right back up. It is so frustrating. I have hypothyroidism, could that have something to do with my struggle? Are there special considerations for people with this condition when eating LHF?
    Reply: #57
  3. Floyd
    Ok guys I'm thinking about doing this low carb diet,but I have some questions so I weight 365 lbs what would that weigh in kg and I want to get back down to about230 to 240 lbs what would that weigh in kg that way I know how muck protein to eat I think I need to stick with 30 to 40 carbs a day because I need to gain muscle back as I spent a yr laying on my back fighting for another chance at life and I lost all of my muscle mass and gained a lot of weight from eating hospital food ( carb city lol ) and I have had no exercise I've just recently started back to the gym and I'm have a hard time with cardio because I had to learn how to walk again and deal with the Neuropathy but it's much better I seriously need a lifestyle change lol
  4. Alan
    The foods are disgusting. Eating fat in majority is NOT natural and normal at all. No weight loss whatsoever in 1 week worse my blood pressure went up. Will give this 1 more week if the same i will switch to Rina diet which helped me lose 5kg in 1 months (fat loss not water). Theory for keto sounds right practice sucks. Not to mention you must be rich to afford this in Australia
  5. Marina
    That pic looks more about portion size than food nutrient carb counting??..
  6. Amana
    Hello. . I'm 30yrs old .. I'm a mother of 2 kids. . My weight is 94kgs. . Please recommend me diet plans. .
    Please reply asap..
    Thank you in advance..
    Reply: #58
  7. Andy
    Hi Darlene have you gotten response?
    My case is similar to you and I'm a bit stuck, not sure how to break the process.
  8. Hi Amana!

    Try this:

    Hello. . I'm 30yrs old .. I'm a mother of 2 kids. . My weight is 94kgs. . Please recommend me diet plans. .
    Please reply asap..
    Thank you in advance..

  9. Mia
    I am very new to keto diet but I'd love to give it a go. Now I want the under 20 carbs food plan how much protein and fat can I consume. Please note I am so new you have to break things down for me to understand and not ask even more questions. I don't drink coffee so could I replace that with a none flavored protein shake which says no carbs on the lebel? Do I add similar to the coffee butter and coconut oil?.

    Please help and thank you for every effort made in advance.

    Reply: #73
  10. Michele
    If i want to do the moderate lowe carb then what are my protein and fat intake?
  11. T
    Get in line and look up keto diet...it helps figure the ratio of carb, fat & protien.. not so hard..losinv a pound a day
  12. Alfonso Roman
    Fat is 75% Protien is 25% and carbs are 5%
  13. Carmen
    I have been diagnosed with chronic joint inflammation (RA) and chronic pain ( specifically: secondary Fibromyalgia- 2dary to the RA). Is this diet good for me?

    I also need to stay away from red meats...! Would chicken and fish alone suffice?

    Reply: #66
  14. Sachel
    Hi I am trying to lose weight and try to do my best with this diet I am only 3 days in but I don't eat eggs and a good amount of the allowance foods. I am scared to eat feel like I don't know what I am doing and have been left just eating meat as a meal. Need help 😭
  15. Courtney
    Hi! I'm currently breastfeeding, but am almost to 12 months so I will be done soon. I see the suggestion is to add 3 large fruit a day if breastfeeding. Which fruits do you suggest?
  16. Rebecca
    This diet has helped with my joint pain from hypermobility syndrome and I've heard really good things about its effect on other joint problems.
    You can easily do this without red meat, just use the recipe search.
    I recommend you try it for a month and see how you feel :)
  17. Julia
    Why dont you guys add more activities . Just diet does not work:)
    Go for a long walk daily , keep your carbs ynder 50 gm per day, use Loose it app to calculate your carbs, fats and protein and keep your meals to the size of your fist .
    Reply: #68
  18. Sandy
    Adding exercise is definitely important for weight loss/overall health. I assume that you're stating this as a "kind" suggestion. I hope that it wasn't meant as a judgement towards posts that are seeking advice.
    Just need to be careful to not assume that people aren't exercising.
    Also, some people have limited or no ability to exercise. They may need to work with a professional to determine their alternatives.
  19. San
    Most of weight loss will come from what you eat. Only 20% comes from exercise. I have been reading over this diet and I'm going to try it primary because I need to detox from eating a little bit of everything since December. I previously lost 100 lbs. eating low carb but it was a lifestyle. I got off course this past year and it has been difficult getting back to it without support. The support is really key to getting and staying healthy.
  20. AnniC
    San, same here. I lost about 100 pounds myself a few years back doing the LCHF. I got pregnant and let myself go. It's been difficult but I'm back on the Lo carb wagon.
  21. Alex
    I have cut out most of the junk food and reduced sugar intake and had bacon and eggs every day for the last 12 months, cheese or ham or tuna salad for lunch all with parmesan, olives and mayonnaise. Dinner consists of a normal meal but with the potatoes/pasta replaced with either cauliflower/zoodles etc. I've lost 2 stone in the last 12 months and have never eaten more in my life!
  22. Jacob
    Hey, quick question! It's described here talking about fiber vs carbs. Now, to my understanding, carbs is fiber. But it also states that fibers won't count since they aren't digestible in the same manner as basic carbs (sugars?). I just want to know, when looking at a nutrition label, what common terms am I going to see under Carbohydrates, and how should I treat them?
  23. Christel
    I did keto for 7 month and lost 65 pounds with the minimum of 20g carbs per day. I figured out first what is my BMR = Basic Metabolic Rate and from this Basic calorie amount I ate 75% fat, 20% protein and 5% carbs. The carbs you have to adjust not to go over 20g.
    I downloaded my fitnesspal from playstore which is free and put everything in what I eat and this show you the amount of fat, protein and carbs. You put in first your basic calories you want eat daily
    Just follow the myfitnesspal.com
    I still using it and I will lose another 10 pounds
    I am so used to calculate my carbs etc. I can't leave without it.
  24. Donna D.
    A low carb diet worked for me initially and I lost 20 lbs of the 40 lbs that I needed to lose. I felt really good physically and mentally but perhaps a bit overconfident because I became lax. Now, I thought, I had the secret to permanent weight loss. i.e. If I gained a few pounds I reasoned, all I had to do was go back to eating low-carb. Furthermore, after a few months, I began missing starches like: potatoes and pasta. I also thought an occasional sweet treat wouldn't hurt... but I was wrong. Ultimately I ended up gaining all 20 lbs back because I couldn't seem to sustain eating a low-carb diet forever.

    As stated, I thought my answer lied in returning back to low-carb eating, assuming I would have the same result as I did the first time. Wrong again! It didn't happen that way for me at all. For whatever reason, low-carb stopped working and my body did not respond as it once did I searched all over the internet for low-carb methods of resuming weight loss, but to no avail.

    I tried lowering my carbohydrates even further to ketogenic standards. I drank more water, I ate as clean and fresh as possible, I lowered my calories, I upped the fat, I added specifically recommended supplements, but my body would not cooperate and I felt miserable. Occasionally I would drop 2-3 lbs, but then it would come right back. Furthermore I felt extremely exhausted, lethargic and depressed. My energy levels were depleted and I also experienced severe leg cramping and hair loss. My energy levels and depression were so bad, I remained on my sofa for the most part of any day. "This is no way to live" I thought... Where were all those low-carb and ketogenic benefits I read about?

    Then I discovered keto flu and how for some it was part of the fat adaptation process. While I suspected that was what I was experiencing, I also learned that keto-flu could last for months. For some, fat adaption is a quick process for others it can be brutally slow. I gave the keto diet a 6 week shot, but I was so unhappy and depleted I finally relented and had a sweet potato loaded w butter.

    Then... holy cow! I finally found an answer... Enter intermittent fasting (IF) and I have since dropped 15 lbs. It has taken me about 6 weeks of experimentation on how to do an IF method that would work for me, (since there are many ways to do IF) I have finally settled on 2 meals a day (5 hrs apart) for 5 days, and one meal a day (OMAD) for 2 days a week -- and, I mix it up. This method is what finally broke my frustrating and long plateau. I am also learning about the phenomenal healthful benefits from following an IF lifestyle, but what was clearly obvious for me was: it apparently balanced my hunger hormones and kick-started my weight loss. Now my goal, other than a specific number on the scale (120-125 lbs) and to become more fit, is MOSTLY --> a desire to maintain an IF lifestyle forever. Fortunately, this time I know I can sustain this way of eating forever because my body finally feels THAT good when I'm in an IF state. Here's the deal... If we enjoy something enough, and the rewards are there, we can easily adopt it as a lifestyle, just like any habit that we have started in the past.

    PS. I typically eat a reasonably low-carb diet but not necessarily ketogenic. My lab markers are great, my energy is back, and I'm finally on my way down to a normal healthy weight, but most f all, I actually enjoy it.

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