Keto Diet: A Complete List of What to Eat and Avoid, Plus a 7-Day Sample Menu

Looking to lose weight? Keto is one of the biggest diet fads out there today. But first, learn what you can and can’t eat with this comprehensive food list and meal plan.

On the keto diet, you’ll need to drastically cut your carbs, prioritizing protein, nonstarchy veggies, and healthy fats instead.Nadine Greeff/Stocksy

If you’re looking to get a jump start on your health and fitness goals this year, you may be thinking about trying the ketogenic diet. Maybe you’ve heard the phrase before — it’s a huge diet buzzword — but aren’t sure what it means. Here’s a primer: The ketogenic diet is an eating plan that drives your body into ketosis, a state where the body uses fat as a primary fuel source (instead of carbohydrates), says Stacey Mattinson, RDN, who is based in Austin, Texas.

When you’re eating the foods that get you there (more on that in a minute), your body can enter a state of ketosis in one to three days, she adds. During the diet, the majority of calories you consume come from fat, with a little protein and very little carbohydrates. Ketosis also happens if you eat a very low-calorie diet — think doctor-supervised, medically recommended diets of 600 to 800 total calories per day.

What Is the Keto Diet?

Benefits and Risks of the Diet That Beginners Need to Know

Before you dive in, it’s key to know the possible benefits and risks of keto.

Research backs up undertaking a ketogenic diet in three circumstances: to aid treatment of epilepsy, to help manage type 2 diabetes, and to support weight loss, says Mattinson, and the last two purposes still need more studies. “In terms of diabetes, there is some promising research showing that the ketogenic diet may improve glycemic control. It may cause a reduction in A1C — a key test for diabetes that measures a person’s average blood sugar control over two to three months — something that may help you reduce medication use,” she says.

But for people with diabetes, one big concern is you’re eating a lot of fat on keto, and that fat may be saturated, which is unhealthy when eaten in excess. (The much higher total fat intake is also a challenge among keto beginners.)

Because people with type 2 diabetes are at an increased risk for cardiovascular disease, there’s a specific concern that the saturated fat in the diet may drive up LDL, or “bad,” cholesterol levels, and further increase the odds of heart problems. If you have type 2 diabetes, talk to your doctor before attempting a ketogenic diet. She may recommend a different weight loss diet for you, like a reduced-calorie diet, to manage diabetes. Those with epilepsy should also consult their doctor before using this as part of their treatment plan.

The keto diet may also help improve short- and long-term cognition among people who are living with Alzheimer’s disease and are experiencing mild cognitive impairment, according to a systematic review of randomized controlled trials that was published in Advances in Nutrition in June 2020. right up arrow Researchers caution that further research is needed to confirm these findings and prove a cause-and-effect relationship between keto and preventing dementia.

In terms of weight loss, you may be interested in trying the ketogenic diet because you’ve heard that it can make a big impact right away. And that may be true. “Ketogenic diets will cause you to lose weight within the first week,” says Mattinson. She explains that your body will first use up all its glycogen stores (the storage form of carbohydrate). With depleted glycogen, you’ll drop water weight. While it can be motivating to see the number on the scale go down (often dramatically), do keep in mind that most of this is water loss initially.

But the keto diet can be an effective option over time. One review suggested the keto diet can spur fat loss in obese people when used for a couple of weeks and up to one year. right up arrow A meta-analysis noted that one likely reason for weight loss is that keto diets may suppress hunger. right up arrow

One downside to the ketogenic diet for weight loss is that it’s difficult to maintain. “Studies show that weight loss results from being on a low-carb diet for more than 12 months tend to be the same as being on a normal, healthy diet,” says Mattinson. While you may be eating more satiating fats (like peanut butter, regular butter, or avocado), you’re also way more limited in what’s allowed on the diet, which can make everyday situations, like eating dinner with family or going out with friends, far more difficult. Because people often find it tough to sustain, it’s easy to rely on it as a short-term diet rather than a long-term lifestyle.

Another potential downside to the keto diet: the keto flu. One study, published in March 2020 in Frontiers in Nutrition, right up arrow found that across 43 different online forums for people following a keto diet, about a third of commenters reported experiencing this short-term keto side effect. In the first few days after you begin your keto diet plan, you may experience headaches, muscle cramps, fatigue, nausea, constipation, and other flu-like symptoms, according to Harvard Health Publishing. right up arrow These symptoms usually resolve within a few days to a few weeks, and you can help to counter them by drinking plenty of fluids with electrolytes, according to an article published June 2020 in StatPearls. right up arrow

Before starting, ask yourself what is really realistic for you, Mattinson suggests. Then get your doctor’s okay. You may also work with a local registered dietitian nutritionist to limit potential nutrient deficiencies and talk about vitamin supplementation, as you won’t be eating whole grains, dairy, or fruit, and will eliminate many veggies. “A diet that eliminates entire food groups is a red flag to me. This isn’t something to take lightly or dive into headfirst with no medical supervision,” she says.


Text and visual resources taken from:
Sep 14th, 2021

Now answer the following questions.

  1. Who of the people you know would like to go on a keto diet and why?
  2. What other diets do you know of that are better? How are they better?
  3. Why wouln’t you go on this diet?



Puntuación: 0 / Votos: 0


  1. María Elena Reyes escribió:

    At first I believed that the keto diet would be good for my sister-in-law but with the information provided in the article I would not recommend it due to the risks it has, especially for her who has diabetes.
    I believe that the best diet consists of eating healthy and balanced, as well as exercising. However, the idea of being healthy is confused with the idea of being thin.
    I would not follow this diet because it would be very difficult not to eat carbohydrates, although the possibility that it improves brain activity is very interesting.

  2. Yanet Leon escribió:

    Who among the people you know would like to follow a ketogenic diet and why?
    My cousin is a person who is overweight and she and her friends do many types of diets to lose weight because on social networks they talk about this type of diet stating that numerous studies confirm that a ketogenic diet can help you lose weight, but it is not recommended for everyone or to maintain it in the long term, also because a diet should always be recommended by the specialist, which in this case is the nutritionist.
    What other diets do you know that are better? How are they better?
    I know many but the main ones are known as the Mediterranean diet, Dash and the Flexitarian diet, which allow an active lifestyle, weight control and a diet low in red meat, sugar and saturated fat and high in vegetables, nuts and others. healthy food. They also ensure good heart and brain health and the prevention of cancer and diabetes, among others, and the flexitarian diet for its emphasis on the consumption of whole grains, fruits, vegetables and plant-based proteins, can basically be defined as a vegetarian diet
    Why wouldn’t I follow this diet?
    Because it is convenient to know exactly what a keto diet consists of to practice it well and also to know what its consequences are to avoid metabolic diseases, thyroid and kidney problems, and others why. Likewise, a long-term diet could become dangerous to health since it is very unbalanced and could cause a rebound effect.

  3. Roger Tumi escribió:

    Who among the people you know would like to follow a ketogenic diet and why?

    The ketogenic diet is good for controlling type 2 diabetes, I would recommend it to my aunt who suffers from this disease.

    What other diets do you know that are better? How are they better?

    I know the vegetarian diet, it is healthier.
    Why don’t you follow this diet?
    The ketogenic diet is recommended in three circumstances: diabetes, epilpsy, and weight loss. I am not in any of these circumstances.

  4. Karina Leon escribió:

    From my point of view Keto diet is pretty interesting because all the good benefits it can bring to your body and health, it could be other options for people who suffer specials illnesses too. Speaking personally I’ve never done a diet but for a healthy routine, I do exercise, I eat vegetables and fruits, and small amounts or carbohydrates, and I do not eat sugary food. I think Keto diet could be an option if you have self-control.

  5. juan rengifo escribió:

    This diet is difficult to follow, you have to be very careful because it can hurt you.
    I think that each person should look for their diet. I would not do it. I would look for a professional to receive a diet according to my needs

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