A low-carb diet for beginners
Studies show that low-carb diets can result in weight loss and improved health markers.1 These diets have been in common use for decades and are recommended by many doctors.2 Best yet, there’s usually no need to count calories or use special products. All you need to do is to eat whole foods that make for a complete, nutritious, and filling diet.3
Learn more about low carb and how to use it for your personal goals here.
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1. What is low carb?
A low-carb diet means that you eat fewer carbohydrates and a higher proportion of fat (with adequate amounts of protein as well). This can also be called a low-carb, high-fat diet (LCHF) or a keto diet.4
For decades we’ve been told that fat is detrimental to our health. Meanwhile, low-fat “diet” products, often full of sugar, have flooded supermarket shelves. This has likely been a major mistake, that coincided with the start of the obesity epidemic.5 While this doesn’t prove causation, it’s clear the low-fat message didn’t prevent the obesity increase, and it is possible it contributed.
Studies now show that there’s no reason to fear natural fats.6 Instead, on a low-carb diet fat is your friend. Simply minimize your intake of sugar and starches, make sure you are getting adequate protein, and you can eat all the fat you need to feel satisfied.7
When you avoid sugar and starches, your blood sugar tends to stabilize and the levels of the fat-storing hormone insulin drop.8 This helps increase fat burning and may make you feel more satiated, thereby naturally reducing food intake and promoting weight loss.9
- Eat: Meat, fish, eggs, vegetables growing above ground and natural fats (like butter).
- Avoid: Sugar and starchy foods (like bread, pasta, rice, beans and potatoes).
Below are examples of what you could eat, alternatively check out our 700+ low-carb recipes.
Who should NOT do a strict low-carb diet?
Most people can safely start a low-carb diet.13 But in these three situations you may need some preparation or adaptation:
- Are you taking medication for diabetes, e.g. insulin? Learn more
- Are you taking medication for high blood pressure? Learn more
- Are you currently breastfeeding? Learn more
If you’re not in any of these groups, and don’t have other severe chronic medical conditions, you’re good to go! You can read more in our post about contraindications to keto diets.
This guide is written for adults with health issues, including obesity, that could benefit from a low-carb diet.
Getting started fast
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In 60 seconds
Does low carb still seem complicated? Check out our visual low-carb in 60 seconds guide
2. What to eat on a low-carb diet
In this section you can learn exactly what to eat on low carb, whether you prefer visual guides, detailed food lists, delicious recipes or a simple get started guide.
Let’s start with a quick visual guide to low carb. Here are the basic food groups you can eat all you like of, until you’re satisfied:
The numbers above are grams of digestible carbs per 100 grams (3.5 ounces). Fiber is not counted, you can eat all the fiber you want.14
All foods above are below 5% carbs. Sticking to these foods will make it relatively easy to stay on a strict low-carb diet, with less than 20 grams of carbs per day.
Try to avoid
The numbers are grams of digestible carbs per 100 grams (3.5 ounces), unless otherwise noted.
What to drink
What drinks are good on a low-carb diet? Water is perfect, and so is coffee or tea. Preferably use no sweeteners.15 A modest amount of milk or cream is okay in coffee or tea (but beware of caffe latte!).16
The occasional glass of wine is fine too.
Visual low-carb guides
Here are more detailed visual guides to the amount of carbs in common foods. Is a specific food item low or high in carbs? Click to find out:
The meal plans below is available through Diet Doctor Plus. Not a member? Sign up for a FREE 30-day trial to get all our meal plans and many other membership benefits. After the free trial ends, it’s only $9.99/month or $99/year.
Don’t feel like much of a chef but still want to serve and have healthy homemade meals? This is the meal plan for you! Boost your confidence in the kitchen with these delicious and easy-to-make recipes that help you stay below 25 grams of carbs per day.
This is a varied low-carb meal plan filled with delicious meals. If you’re in need of new inspiration or just curious to see what low-carb is all about, this meal plan is for you. It will help you stay below 25 g of carbs per day.
This week’s meal plan really has it all! It’s fresh, varied, filling and also affordable. It will help you stay below 25 grams of carbs as well.
Check out the meal-planner tool
How low carb is a low-carb diet?
The lower your carbohydrate intake, the more powerful the effects on weight and blood sugar appear to be.17 For that reason we recommend initially following the dietary advice fairly strictly. When you’re happy with your weight and health, you may carefully try eating more carbs if you want to (although we find many people don’t want to).
Here are three examples of what a low-carb meal can look like, depending on how many carbs you plan to eat per day:
A strict low-carb diet is often called a keto or ketogenic diet. It’s not a no-carb diet, but it contains less than 20 grams of carbs per day.
Here’s an 11-minute video course on how to eat low carb, high fat. Sign up for our free newsletter18 for instant access to it:
Keen to get started? Then sign up for our free 2-week low-carb challenge, where you’ll be guided step-by-step through your low-carb journey.
Here’s a leaflet with basic low-carb advice, that you may want to print and have around, or give to friends who are curious:
Low-carb advice in 40 languages
- Brazilian Portuguese
- Bulgarian (different version)
- Chinese, Chinese (Taiwan)
Do you have another translation or a significant improvement of one of the earlier ones? E-mail us.
3. Health benefits of a low-carb diet
Why would you consider eating fewer carbs? There are many potential benefits, proven by science and supported by clinical experience, like these:
Most people start eating fewer carbs to lose weight. Studies have shown that low-carb diets are often more effective than other diets.19 Low carb makes it easier to lose weight without hunger, and without having to count calories.20
- How to lose weight – the full guide
- Why low carb can help you lose weight
- How to lose weight with a low-carb diet
- Top 10 weight-loss tips for women 40+
- 600+ success stories
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Reverse type 2 diabetes22
Low-carb diets can help reduce or even normalize blood sugar, and thus potentially reverse type 2 diabetes.23 Since the data to date have focused on very strict low carb diets, we do not know if more liberal low-carb diets will also result in type 2 diabetes reversal. However, as the American Diabetes Association notes, carbohydrate reduction of any level is likely an effective tool for blood sugar control.
Low carb might help settle a grumpy gut, often reducing symptoms of irritable bowel syndrome such a bloating, gas, diarrhea, cramps, and pain.25 Indigestion, reflux and other digestive issues can sometimes improve, too.26
Are you struggling to stay away from sweet foods, even though you try to eat them in “moderation”? Many people do.28
Weight loss, shrinking fat stores, lower blood sugar, improved mental clarity, and a calmer digestive system are the most frequently cited benefits of low-carb eating.30
But some people experience even more improvements, some of which can be life-changing: lower blood pressure and other improvements in risk factors for heart disease,31 less acne and better skin,32 fewer migraines,33 possibly improved mental health symptoms, better fertility,34 and more.35
The links below share more inspiring testimonials and scientific research about potential low-carb benefits.All low-carb benefits
We’ve been sent over 600 amazing low-carb success stories, and get more all the time. Here are a few, and links to all of them sorted by categories:
4. Low-carb tips and guides
To make a low-carb diet truly simple and enjoyable requires a few new skills. For example, how do you cook low-carb breakfasts that you love? How do you eat more healthy fats? And what’s important to think about when dining out?
Here are all the guides you need.
There are many other options – both delicious and fast
So, What’s for lunch and dinner on a low-carb diet? You could have mouth-watering, delicious dishes full of meat, fish, chicken, vegetables and full-fat sauces. The options are nearly limitless as you will see by our variety of recipes and meal plans.
Check out our recipes to learn to cook amazing low-carb meals
In short, we can show you plenty of great low-carb alternatives that are both tasty and healthy. You may even end up liking them better than their carb-heavy predecessors.
It’s very possible to eat low carb even when leaving your house, for example at restaurants. Just avoid starchy foods and ask for some extra natural fat (e.g. olive oil or butter).
This guide helps you with tips for fast food, other restaurants, buffets and for when you eat at a friend’s house
You probably don’t need to snack as much on a low-carb diet, as you’ll likely feel satisfied longer.37
However, if you want something right away you could have cheese, nuts, cold cuts or even an egg. There are lots of amazing options
Do you have a hard time living without bread?
You may not have to. Just be aware that there are good and bad low-carb bread options. Spoiler: you’ll probably want to stay away from “low-carb” bread from the grocery store! Here’s why, and what to do instead
Fat can be both satiating and an amazing flavor enhancer. But how do you get enough of it in your diet? And how much fat should you really eat? Hint: enough to feel satisfied and not hungry.
Many who are eating a low-carb diet can get seduced by creatively marketed “low carb” products — cakes, cookies, candies, chocolate, pastas, breads, ice cream and other substitute foods.
Unfortunately this rarely ends well, especially not for weight loss. These products are usually lacking beneficial nutrients and are often higher in carbs than their labels imply. We recommend avoiding them entirely if possible. Learn more
A low-carb diet doesn’t have to be expensive. In this guide, you’ll learn how to make it cheap.
With a little planning and preparation you could save a ton of money
Is it a good thing to occasionally stray from on a low-carb diet? That depends. And it’s worth thinking about what’s right for you. Learn more
Do you want more low-carb guides? We have more low-carb guides!All low-carb guides
5. Potential side effects on a low-carb diet
If you stop eating sugar and starch cold turkey (recommended) you may experience some side effects as your body adjusts. For some people these side effects are mild, while others find the transition more difficult. It usually lasts a few days, up to two weeks, and there are ways to minimize it (see below).38
Another option is to decrease the intake of carbohydrates slowly, over a few weeks, to minimize side effects. But the “Nike way” (Just Do It) may be the best choice for most people. Removing most sugar and starch often results in several pounds lost on the scale within a few days. This may be mostly fluids, but it can still be great for motivation.39
Here are side effects that may occur when you suddenly start a strict low-carb diet.
By far the most common short-term side effect is called the induction flu. It’s what makes some people feel really poorly for a few days (up to a week) after starting low carb.
Here are common symptoms:40
These side effects rapidly subside as your body adapts and your fat burning increases. Within a week or two, they are usually gone.41
The primary reason for this may be that carbohydrate-rich foods can increase water retention in your body.42 When you stop eating high-carb foods you’ll lose excess water through your kidneys. This can result in dehydration and a lack of salt during the first week, before the body has adapted, resulting in the symptoms above.
You can minimize the induction flu by drinking more fluids and by at least temporarily increasing your salt intake. A good option is to drink a cup of bouillon/broth one or two times a day. This usually keeps the induction flu minor or even non-existant.43
Alternatively, drink a few extra glasses of water and put more salt on your food.
Other common issues on low carb
Beyond the induction flu, there are six more relatively common side effects on a low-carb diet. It seems like many of them can also be mostly avoided by getting enough fluid and salt.44
There are also more things you can do to minimize any problems, click to read more if you’ve experienced one of these issues:
Less common issues
These are less commonly noticed issues, that generally only affect a minority of people:
Beyond the mostly transient side effects that may occur on a low-carb diet (see above) there are many controversies, misunderstandings and a few pure myths that simply don’t hold up to closer scrutiny. For example, your brain is supposed to stop working unless you eat carbs. We’ll, that’s simply wrong.45
Read all about these topics on our low-carb controversies page, or choose a specific topic below:
6. Learn more
Here’s the sixth and final section of this low-carb page. Do you want to truly understand low carb, and get answers to your remaining questions? Or do you want extra inspiration for yourself or for people you’re trying to help?
Find it here, and start becoming a low-carb expert.
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What are you designed to eat, and why can sugar and starch be a problem? Essentially, how does a low-carb diet work?
Are you having problems on low carb? Are you not losing weight like you want to? How many carbs should you eat?
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A lot of people still fear natural fat. But really, the whole idea that we should fear fat is based on low quality science that does not support the broad sweeping conclusion. Recent research and many open-minded experts now agree.46