ne thing’s for sure: The keto diet is super-restrictive, and it can be tough to get it “right.”

For instance, on this diet you’ll have to nix starchy veggies, limit fruits, and avoid grains, sauces, juice, and sweets. And, per the standard keto food list, you’ll need to load up on fat (lots of it). Doing so will kick you into ketosis, which is the metabolic state that causes your body to burn fat instead of carbs, potentially accelerating weight loss, according to the Cleveland Clinic.

But because carbs are in just about everything, and fats come in various forms (not all healthy), it can be easy to make mistakes here, especially if you’re a beginner to the keto lifestyle.

Avoid the following common pitfalls of keto to ensure you’re following this approach as safely as possible.

1. Cutting Your Carbs and Increasing Your Fat Too Quickly
One day you’re eating cereal, sandwiches, and pasta, and the next you decide to hop on keto and eat less than 50 grams (g) of carbohydrates a day, which is often the amount recommended at the beginning of keto, according to research published in Frontiers in Nutrition in July 2021. (A medium apple has 25 g of carbs, for reference, notes the U.S. Department of Agriculture [USDA].) That may be a drastic change for your body. Consider easing in. “Prior to starting a keto diet, individuals may benefit from tapering down their carbohydrate intake, instead of reducing carbs cold turkey,” says Lara Clevenger, a ketogenic dietitian-nutritionist with a private practice in New Smyrna Beach, Florida.

2. Not Drinking Enough Water
For all the focus on what you’re eating, don’t forget about what you’re sipping. Dehydration is an increased possibility on keto. “The drastic decrease in carbohydrate intake on the ketogenic diet can cause shifts in your fluid and electrolyte balance. Carbs are stored along with water in the body, so as these stores are depleted, that water is lost along with them,” says Alyssa Tucci, RDN, a nutrition manager at Virtual Health Partners in New York City. She also says that the body flushes out the buildup of ketones in urine, which also depletes water and sodium from the body. All that to say: Drink up. Tucci recommends waking up to a large glass of water and sipping regularly throughout the day to reach a goal of consuming half of your body weight numerically in ounces of water daily.

5 Myths About the Keto Diet
3. Not Preparing Yourself for the Keto Flu
As your body transitions from carbohydrate burner to fat burner, you may experience what’s known as the “keto flu,” or flu-like symptoms that begin shortly after you start the diet and that eventually go away. The exact reason why people may experience the keto flu isn’t known, according to Harvard Health.

It doesn’t happen to everyone, FYI. But in a study published in the March 2020 Frontiers in Nutrition that analyzed online forums where people reported their keto flu symptoms, people described 54 different symptoms of the keto flu, most commonly headache, fatigue, nausea, dizziness, brain fog, GI distress, decreased energy, faintness, and changes in heartbeat, which started within several days of beginning keto, peaked after one week, and diminished after four weeks.

If you’re not prepared for this feeling, you may think something is drastically wrong and give up on the diet completely. Furthermore, you can help yourself through the transition period of low energy by planning your meals and meal prepping, says Clevenger. She recommends eating foods rich in potassium, magnesium, and sodium, as well as hydrating to ease keto flu symptoms. There are also electrolyte rehydration drinks that can help you replenish sodium, magnesium, and potassium levels, she says. Drinking fluid and getting in these electrolytes can help ease some, but not all these symptoms, according to a book on the ketogenic diet published by StatPearls.

4. Forgetting to Eat Foods Rich in Omega-3 Fatty Acids
While fat reigns supreme on the diet, don’t just turn to bacon, cheese, and cream. There are both good and bad fats on keto! When choosing yours, aim to include healthy sources such as more anti-inflammatory omega-3s, particularly EPA and DHA, the type of fat found in salmon, sardines, oysters, herring, and mussels, says Clevenger. (If seafood isn’t your thing, you can also take cod liver oil or krill oil, according to the National Institutes of Health Office of Dietary Supplements.)

Other healthy fats are a good choice, too; if you haven’t stocked up on avocado, olive oil, and seeds such as chia seeds and flaxseed, definitely do. They’re not only keto friendly — they offer healthy polyunsaturated and monounsaturated fats that are heart protective, according to the American Heart Association.

5. Not Salting Your Food Enough
With people consuming more sodium than ever in a diet rich in processed food, you’re probably not used to hearing the call to eat more salt. But on keto, it’s necessary. “As ketones build up in the body, they are excreted from the body through urine, which takes water and sodium out with it,” says Tucci. In addition, you may be getting much less table salt (which is composed of 40 percent sodium and 60 percent chloride, per the Centers for Disease Control and Prevention [CDC]) now that you’ve kicked out the top source of salt in the standard American diet: packaged, processed foods, including bread, chips, crackers, and snack mixes, per the CDC. (There are a host of packaged keto foods now; though they should not play a large role in your diet, they can help you stay on track with your macro counts in a convenient way. If you’re eating these, check the sodium content on the label.) “Chances are if you’re following a ketogenic diet you may need to prepare most, if not all, of your own meals and snacks from scratch, so simply season with salt,” says Tucci.

6. Going It Alone and Not Clearing the Diet With Your Doctor
Many followers of the keto diet try it because they’re hoping to use it therapeutically for a medical condition. If that’s you, talk to your doctor first and make sure they’re on board with your plan — especially if you’re also taking says Clevenger. “Some may need to be adjusted by your healthcare practitioner as your signs and symptoms improve,” she says. Just one example is insulin, as a lower dose may be needed now that you’re severely limiting carbohydrates.

7. Not Paying Attention to Your Veggie Intake
Vegetables have carbohydrates. And that means that you have to watch how much of them you eat — even lettuce. If you're not careful or are eating them as a free-for-all, you could overconsume carbs and kick yourself out of ketosis. On the other hand, you may be skipping veggies altogether if counting every baby carrot is getting too complicated. But it’s important to get your vegetables in (they contain the fiber that will prevent constipation, a potential side effect of keto, according to University of Chicago ) while minding portions and properly counting carbs. Go for nonstarchy options in a rainbow of colors for a variety of nutrients, says Tucci, like leafy greens, cucumber, tomato, broccoli, cauliflower, bell peppers, and asparagus.

8. Getting Caught Up in Carb-Counting and Forgetting That Food Quality Matters
When it seems as if the sole goal of keto is to drastically cut carbs, the rest can feel like an afterthought. “Reducing your carbohydrate intake is great, but higher-quality products, when your budget allows, will help improve your health, too,” says Clevenger. That means choosing omega 3–rich foods, like wild salmon; grass-fed, local, or organic meats; and snacking on whole foods rather than processed keto-approved treats. It also means trying to follow a balanced diet as best you can by incorporating as many nutrient-rich fruits and veggies as you can. Many registered dietitians aren’t fans of keto because it can lead to nutrient deficiencies. You can avoid this by working with an RD yourself as you follow keto. Find one at EatRight.org.