The 7 Best Keto Electrolyte Powder Brands (For Fasting Too)

Image of a water bottle with person holding the bottle at sunset with wording best keto electrolyte powder for fasting by The Healthy RD

Electrolyte powders vary wildly in total electrolyte counts, so this guide is to help you pick the best keto electrolyte powder for a keto diet and intermittent fasting. 

These electrolyte drinks can be really important tools to make your intermittent fasting, endurance exercise, using a sauna, or keto diet regimens to be successful as well as safe.

Surprisingly, there are no standards for containing adequate electrolytes for these drinks, so a product can call itself an electrolyte drink without having any appreciable levels of electrolytes.

Keep in mind, that they are also meant for healthy people and are not meant to be taken if you have kidney disease. 

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What qualifies as the best keto electrolyte powder?

The basic criteria for the best electrolyte powder are that they actually contain the necessary electrolytes to stay hydrated.  

Electrically charged minerals include sodium, chloride, potassium, and magnesium

You may be surprised to find out that most electrolyte drinks do not actually contain significant enough electrolyte amounts to help you.  

This is even true of the most common ones on the shelf today like Gatorade and Powerade. 

Here are the criteria for the best electrolyte powders for fasting that are important for good taste and quality:

  • Contains plenty of electrolytes: sodium, potassium, and magnesium
  • Free of artificial sweeteners
  • Contains bicarbonate for acid-base balance as a bonus
  • Uses natural sweeteners, preferably monk fruit, for taste
  • Free of artificial colors
  • Trace minerals are a nice bonus
  • Vitamin C and natural B vitamins are helpful but not required
  • Sugar-free and low-carb

Best keto electrolyte powder brands overview

Key Nutrients
Best overall
140 mg250 mg100 mgBest tasting, highly rated, the best value, lowest calorie, also contains zinc and calcium, comes in 12 flavorsStevia flavor is too sweet for some people
Body Bio E-Lyte (per tsp)-Best overall178 mg374 mg130 mgPer 2 capfuls-Highly rated, Glyphosate freeSalty taste for some people
Uppermost Hydrate Electrolyte Packets Best electrolyte packets 400 mg350 mg50 mgBest tasting and excellent for exercise, sweating, and fastingSlightly less magnesium
Perfect Keto Daily Electrolytes240 mg600 mg250 mgHighly rated, the most magnesium, contains BicarbonateSome people experience a laxative effect
LMNT Keto Electrolyte Drink1000 mg200 mg60 mgHighest potassium contains trace mineralsStevia-sweetened, which has an aftertaste for some people
Dr. Berg’s Electrolyte Powder10 mg1000 mg120 mgHighest potassium, contains trace mineralsStevia-sweetened, not enough sodium
Ultima Replenisher Hydrating Electrolyte Powder55 mg250 mg100 mgHighly-ratedStevia-sweetened and does not have enough sodium, no added features

Criteria for the best keto electrolyte powder brands

Electrolytes on keto diets often make or break the experience. If you don’t have enough electrolytes, you will feel fatigued and have keto flu symptoms.

When trying to find the best electrolyte supplement for keto diets or fasting, the following electrolyte criteria are a must.

A good keto hydration powder will have plenty of sodium, magnesium, chloride, and potassium. This is actually a good rule of thumb for any best electrolyte supplement for athletes too.

Related post: 15 of the Best Salt Types + Uses and Health Considerations

Must contain at least 100 mg of sodium

The electrolyte that you stand to lose in the highest amounts during exercise or a fast is sodium.  Yet, manufacturers shy away from adding sodium to their electrolyte solutions. 

This simply isn’t acceptable.

When shopping for an electrolyte drink, make sure that it contains at least 100 mg of sodium per serving.  

This is harder to find than you would think. 

Still, if you are doing intense sweating, you may need to add a salt tablet or extra sodium to your drink no matter how much sodium your drink contains. 

Note: If your electrolyte drink contains sodium, it will also contain chloride because they are found together as a salt.  Having enough sodium is critical in reducing your symptoms of keto flu.

Related post: How to Do 14 10 Intermittent Fasting + Benefits

Contains a good amount of magnesium

I recommend finding electrolytes containing at least 100 mg of magnesium.  

This is because of the simple fact that most people are low in magnesium at baseline and fasting and exercise depletes magnesium further. 

Because this can be difficult to find in perfect combination with other electrolytes, I included those with greater than 50 mg of magnesium per serving. 

Related post: Magnesium for IBS Constipation

Contains a good amount of potassium

The best electrolyte powders are going to have at least 300 mg of potassium in them too.

Other key nutrients and helpful ingredients:

  • B-vitamins and other key nutrients like vitamin C
  • Trace minerals
  • Zinc

Best overall and best keto electrolyte powder for fasting 

There are three that stand out as the best overall electrolytes because they clearly have better mineral ratios and better overall ingredients than all the other brands on the market today.  

Those three brands are Kiss My Keto, Seeking Health, and Trace Minerals They check all the boxes for the best electrolyte powder for keto diets as well as fasting.

Key Nutrients Electrolytes

Key Nutrients Electrolytes is the best electrolyte powder because it contains a perfect blend of electrolytes, tastes great, it is sugar-free, and has zero calories in it. Simply mix this tasty powder in water to help with hydration and replace electrolytes.

This means that you can easily have this drink while fasting or on a ketogenic diet. Plus, it tastes delicious and doesn’t have a stevia aftertaste like many low-carb drinks.

The other benefit of Key Nutrients is that it is very highly rated and it’s a very good value at $35 for 90 servings. Customer service with this product is great and you can return it if you aren’t fully satisfied.

Body Bio E-Lyte

Body Bio Elyte

My favorite part about this brand is that it is unsweetened and can be added to water throughout the day for hydration. Each 16 oz bottle contains 16 capful servings. You can also save 15% by using the code THEHEALTHYRD 

Highly rated with hundreds of positive reviews, this is a great no-nonsense electrolyte supplement. 

This electrolyte drink has zero calories, too, making it perfect for keto meal plans and fasting. It is glyphosate-free and contains absolutely zero additives.

Most Magnesium

If you are low in magnesium, as a large majority of people are, this is a good bet for replacing electrolytes during a fast or when following a ketogenic diet. When looking at the best keto electrolyte supplements, this one fits the bill for containing the most magnesium.

Perfect Keto Electrolytes Hydration Powder contains 250 mg of magnesium as magnesium citrate, a highly absorbable form of this mineral.

It also contains a good ratio of sodium at 240 mg and potassium at 600 mg per serving. The occasional reviewer states that it clumps, but overall this product is highly rated and gets good reviews.

Best for endurance or heavy sweating

LMNT Keto Electrolyte Drink: By far the best sodium content for endurance and sweating is LMNT.  These keto electrolyte powder packets are helpful for anyone following a fasting regimen or a keto diet routine.

It contains 1000 mg of sodium per serving and 200 mg of potassium.  Unfortunately, it only contains 60 mg of magnesium and contains stevia as a sweetener.  

It gets very good reviews for energy and performance, but many people do complain that it is too sweet because of stevia leaf extract or has an aftertaste of stevia. 

Highest potassium content

Dr. Berg’s Original Electrolyte Powder is among the best electrolytes for keto 2022 because it has the highest potassium content with 1000 mg of potassium per serving. 

Unfortunately, it only contains 10 mg of sodium, which isn’t enough for people who have salty sweat or for people who are fasting. 

But, it does contain trace minerals which is a bonus.  

It is all-natural and is stevia-sweetened. 

Best keto electrolyte powder packets

Uppermost Hydrate Electrolyte Powder Packets are a great nutrient electrolyte powder because they contain lots of B vitamins and meet the criteria for the best keto electrolyte too. Great for both exercise recovery and for helpful hangover relief too.

They are Paleo diet-friendly because they are gluten-free and don’t have any artificial ingredients. Because they come in packets, they are very helpful for travel, and when you don’t have room to bring a canister of electrolytes.

  • Key Nutrients contain 6 key electrolytes: Magnesium, Potassium, Sodium, Zinc, Calcium & more. It is also enriched with 6 additional natural vitamins.
  • Free of filler and artificial ingredients. Simply mix this powder in 16 ounces of water.
  • NSP and GMP-certified company.

Honorable Mention

Ultima Replenisher Hydrating Electrolyte Powder

Unfortunately, it only contains 55 mg of sodium, but checks all the other boxes for electrolytes, including 100 mg of magnesium, 250 mg of potassium, also contains 65 mg of calcium and 100 mg of vitamin C. 

The sodium can easily be remedied by adding ⅛ teaspoon of salt, which would bring this mixture up to around 350 mg of sodium.

Comes in lemonade, grape, and raspberry flavors and is zero calories. 

Better than common sports drinks, but didn’t make the cut

It is easy to add sodium to your electrolyte drinks, but it’s not as easy to fix a low-magnesium electrolyte supplement.  For this reason, these popular electrolyte powders didn’t make the cut. 

  • Nuun Electrolyte Drink Tablets
  • Liquid IV Hydration Multiplier
  • Keto K1000 Electrolyte Powder
  • Jigsaw Health Electrolyte Supreme Powder Packets
  • Pedialyte Hydration Station: didn’t make the cut because it has sucralose and artificial sweeteners don’t belong on this list. 

Of course, you could always buy your own magnesium powder to correct this issue fairly easily.

Why magnesium?

Fasting can make your body lose more magnesium, especially for prolonged fasts and if the body becomes acidic.

Your body’s magnesium blood content can drop by 10 percent after exercise. 

Not to mention, the average American is low in magnesium anyway. 

For this reason, I held fast to the magnesium rule for my electrolyte recommendations. 

Related post: 13 Interesting Benefits of Fasting for Gut Repair

Why sodium?

When you fast or follow a ketogenic diet, you will also lose more sodium in your urine than you would if you weren’t fasting. The weight loss from these meal plans can increase your loss of electrolytes.

Combine this with exercise and sodium is a critical ingredient in your electrolyte supplements. 

From experience, I can tell you that I am able to complete an intermittent fast much more effectively if I drink some sodium.

Many other experts in fasting recommend adding salt to their water or electrolyte drinks for this reason. 

Why potassium?

Most electrolyte drinks don’t skimp on potassium and for good reason. Potassium is an electrolyte that many people fall short of in their diets. 

Exercise causes poor replenishment of potassium in the muscle without supplementation.

Luckily, fasting doesn’t cause large losses of potassium, so it is probably of lesser importance during a fast than sodium and magnesium.  

Still, most Americans don’t eat enough potassium-rich foods, so it never hurts to get a little extra in your supplements as long as you have healthy kidneys. 

Fasting considerations

Research shows that intermittent fasting can be beneficial for many health conditions, such as reducing cancer risk, and heart disease risk, and is even helpful for reducing body fat and reducing body weight. 

However, most people living in the West grew up grazing on food all day and all night, so adapting to a fast often requires some tools like electrolytes.

Maintaining hydration with adequate water and herbal tea can be really helpful during a fast.

But to be successful with fasting, many people need to replenish their electrolytes during the fasting period.  

There are many perfectly good electrolyte hydration drinks on the market, but they have sugar.  Because of this, they don’t work if you are fasting. 

Most people can maintain a fast if they have an electrolyte drink with around 20 calories in it. 

What about coconut water?

Coconut water doesn’t contain enough sodium and contains carbs and natural sugar, which means it doesn’t meet the criteria as an electrolyte drink for keto or fasting. 

The information on this website has not been evaluated by the Food & Drug Administration or any other medical body and is shared for educational purposes only. While The Healthy RD’s posts are backed by research, you are unique, so you must seek care from your own dietitian or healthcare provider. This post is not meant to diagnose or treat any conditions. Consult your doctor or healthcare provider before making changes to your supplement regimen or lifestyle.

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