Best Vitamins For Keto – Top 4 Picks For The Ketogenic Diet

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By Leslie Waterson

Reviewed by Juliana Tamayo, MS, RDN - Last Updated

Best Vitamins For Keto

The ketogenic diet is one of the most famous diets today. Many testify that this high-fat, low-carb diet does help them burn fat and maintain a healthy weight. A ketogenic diet provides a variety of benefits aside from helping you burn off that fat. In fact, if you are here, you are probably already following (or starting to follow) the ketogenic diet plan.

However, just as with many radical changes in our body, we have to expect some unwanted side effects as the body adapts to the change – and shifting to a ketogenic diet is no different.

Among other physical changes that will take place as you adopt a high-fat, low-carb diet, your body will lose some key minerals and nutrients which, in turn, can cause unwanted side effects such as the keto flu.

To prevent and better deal with this stage, it is important you supplement yourself with these nutrients. In this article, we are going to share some of the best vitamins, minerals, and other nutrients that can help you manage your keto diet better.

We’ll start by giving your our top-rated keto vitamins and supplements, and then go on to explain how these supplements were chosen. Let’s get to it!

Best Vitamins For Keto


Best Multivitamin

The keto diet is restrictive, which can make it difficult to get all of the vitamins and minerals your body needs to perform optimally.

Nutrigenesis is a multivitamin that can help fill any nutritional gaps by providing 17 essential vitamins and minerals.

Nutrigenesis contains high-quality ingredients in optimal doses, making it our top-rated multivitamin for people on the keto diet.

NutriGenesis Multi For Men

Perfect Keto Electrolytes

Best Electrolytes

The keto diet can dehydrate your body. As you eliminate carbs from your diet, your body stores less water than it normally would. This can lead to dehydration and other undesirable symptoms often associated with the “keto flu.”

Electrolytes help your body stay hydrated, which can help you feel better and stay healthier when following the keto diet.

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Perfect Keto Electrolytes Bottle

Brain Octane Oil

Best MCT Oil

Brain Octane Oil is an MCT oil supplement that utilizes only the highest quality MCT’s (medium chain triglycerides).

MCT Oil supplements are popular with keto dieters for two reasons.

First, these supplements provide a healthy source of fat from coconuts.

Second, MCT oil provides a burst of focus and energy that can help you stay full and focused (helping you avoid any brain fog that may be associated with the keto diet).

Brain Octane Oil

Perfect Keto Keto Nootropic

Best For Focus & Energy

Perfect Keto’s Keto Nootropic is the ideal supplement for anyone who is either struggling with brain fog or simply wants to boost their mental energy and focus.

Keto Nootropic is the most comprehensive supplement on our list, containing: vitamins, minerals, nootropics, exogenous ketones, MCTs, and collagen.

If you’re looking for an all-in-one performance optimization on the keto diet, this is it.

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Keto Diet & Mineral Consumption

When you are just starting out on your ketogenic diet, you are going to lose some key minerals in your body. This is because much of the water inside your body will be flushed out as glycogen is forcibly flushed out from your body. Along with water, these key minerals will be flushed out as well.

Now, what’s with these minerals, and why they are important? They are important because these minerals are electrolytes that your body uses to keep your nerve and muscle function intact. These electrolytes are also needed to control your blood pressure.

If you don’t supplement yourself with these electrolytes, you are going to experience some side effects such as the symptoms and effects of the keto flu.

Now, what are these 4 key electrolytes? These are magnesium, sodium, calcium and potassium. These 4 key electrolytes are needed to avoid or minimize the possible side effects as you switch your diet to a high-fat, low-carb diet.

1) Magnesium

Magnesium is a key mineral that promotes the primary energy systems of your cells and ensuring your tissues work well and remain intact. It’s for this reason that magnesium plays a vital role in our muscle and nerve function.

Surprisingly, around 57% of Americans are actually clinically deficient in magnesium. So, before you begin your ketogenic diet, you are probably already magnesium-deficient – and that’s significant!

To sustain yourself with magnesium, the general rule is to take 500mg of magnesium supplement each day before you go to bed. For food sources, nuts such as pumpkin seeds and leafy green vegetables like spinach are good choices, but they may not be enough especially if you live a very active lifestyle.

2) Sodium

Of all the supplements, you probably do not think that sodium will come in the list. This is because sodium is often demonized, at least in regular diets – and for good reasons; too much sodium is not good.

However, when you shift on a ketogenic diet, you will lose a considerable amount of sodium that supplementing yourself with it would be necessary. In fact, low sodium can lead to problems like fatigue, headaches, constipation, and even palpitations.

Generally, it is good to get around 3,000 to 5000mg of sodium per day, unless you are already getting it elsewhere like if you are prescribed to take sodium due to a medical condition.

Most sodium supplements often come as an electrolyte or ketogenic supplement.

3) Calcium

Aside from being a building block of your bones, calcium is also one of your body’s electrolytes that will also be flushed out once you shifted to the ketogenic diet.

You can get a lot of calcium through dairy products, but if you don’t eat dairy products, then foods like broccoli, fish or kale are good sources as well. Of course, you can take dietary supplementation to boost your intake.

When taking calcium, it’s best you take vitamin D supplements as well because vitamin D helps you better absorb calcium.

4) Potassium

Lastly, we have potassium, another key electrolyte – and of course, an electrolyte that will be flushed out from your body as you switch to a ketogenic diet.

Potassium is a mineral that is key when it comes to keeping your cellular health intact. Studies show that deficiency of potassium can actually lead to problems like hypertension and heart disease.

If you are on a ketogenic diet, it is suggested you take up to 3,000mg of potassium per day, but be sure not to go beyond this dosage as too much can be toxic.

Aside from these 4 key supplements, here are some other supplements that can be beneficial for you as you take the ketogenic diet:

  • Vitamin D
  • Vitamin A
  • Omega-3 fatty acids
  • MCT Oil
  • Fiber
  • Iron

Keto Diet & Vitamin Consumption

While you can get most of the vitamins you need from the food you eat, this is easier said than done. Most of us do not have our diets optimized well enough to get our daily dose of micronutrients.

This is especially true with the keto diet, which is restrictive in nature. Many keto dieters will gravitate to the same foods, which may be able to meet macronutrient needs but may fall short of the proper micronutrient profiles.

It can be a good idea to introduce a high-quality multivitamin supplement to your diet so you can fill in these nutritional gaps.

Keto Diet & Supplements

The keto diet involves changing your body’s primary fuel source (switching from carbs to fat). While this can ultimately lead to fat burning, improved mental performance, and a variety of other benefits, it is also a major adjustment for the body.

While ketosis is a natural process in the body, the keto diet aims to “hack” this process by forcing the body to burn fat for fuel through the elimination of carbs. As your body adjusts to this process, it may experience certain undesirable side effects (keto flu, dehydration, brain fog, etc.).

There are supplements that can help alleviate these side effects and/or improve your daily well-being if you are already over the initial hump.

For example, MCT oil may be used as a healthy fat source to reduce food cravings and boost mental energy. Exogenous ketones may help your body adapt to ketosis and provide energy throughout the day. Additionally, certain nootropic ingredients may help boost mental performance, allowing you to stay energized and focused while following the keto diet.

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Leslie Waterson

Leslie has been passionately involved in the health and fitness industries for over a decade. She is constantly reviewing the latest scientific research and studies in order to take a research-backed approach to lifestyle optimization. Her main areas of interest include nutrition and supplementation. Leslie shares her findings on Fitness Clone to help other health enthusiasts choose the products and routines that will help them achieve their goals.