10 Best Fasting Electrolytes of 2025

Tested and Reviewed: Top 10 Fasting Electrolytes deals with expert ratings from 8.1 to a perfect 10

April 2026 Edition

Editor's Choice

9.7

Ultima Replenisher

Ultima Replenisher Daily Electrolyte Powder – Original Variety Pack, 20 Stickpacks – Zero Sugar Hydration Packets with 6 Electrolytes and Minerals – Sugar Free, Plant Based & Keto Friendly Drink Mix

Free Shipping

Editor's bottom line:

“This fasting electrolytes is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Refresh and replenish: Ultima electrolytes powder packets deliver balanced daily hydration with 6 key electrolytes, vitamin C, zinc and delicious plant based flavors; this Ultima Variety pack provides enhanced hydration with no sugar, calories or carbs
Naturally delicious: Electrolyte drink mix with 6 electrolytes - magnesium, calcium, potassium, chloride, phosphorus and sodium, plus vitamin C and zinc; sugar free electrolytes sweetened with organic stevia leaf extract, infused with real fruit flavors
Whats inside: Lemonade, Grape, Raspberry, Cherry Pomegranate and Orange Ultima electrolyte packets; zero calorie hydration packets replenish electrolyte levels with no artificial sweeteners; sugar free, gluten free, vegan, keto friendly, Non-GMO
Take it with you: This 20-serving pack of our electrolyte powder packets is perfect for on the go and exploring different flavors; simply add 1 stickpack of hydration powder to 16 ounces of water and shake or stir well, then add ice if youd like it cold
The Ultima Replenisher difference: Weve spent over 25 years taking electrolyte hydration to a delicious new level; you deserve balanced ingredients to hydrate your body while youre living your ultimate life, every day

Show Price

Picked by 397 people today

9.5

Nutricost

Nutricost Electrolyte Complex Advanced Hydration (120 Capsules) - 8 Hydrating Electrolytes & Vitamins, Gluten Free, Non-GMO, Vegetarian

Free Shipping

Main Highlights

8 Hydrating Electrolytes & Vitamins
Advanced Hydration
120 Capsules for 120 Servings Per Bottle
Non-GMO, Gluten Free, Vegetarian Friendly
Made in an NSF Certified, GMP Compliant, FDA Registered Facility.

Show Price

9.5

FAST LYTE

Fast Lyte Fasting Electrolyte Supplement Powder | No Sugar Unflavored Raw Electrolytes | 25% RDI Magnesium and Potassium with Trace Minerals | Carnivore & Keto Friendly | Sugar Free Fasting Salts

Free Shipping

Main Highlights

Fasting supplement powder with 1175mg Potassium, 575mg Sodium, 100mg Magnesium, 25mg Calcium, and over 74 trace minerals and co-factors.
High concentration mineral source from naturally occurring minerals to supplement any diet or electrolyte need. No fillers or sweeteners; unflavored, raw mineral powder. Great for Keto, Vegan, Paleo, Carnivore, and Intermittent Fasting diets, and as a general electrolyte supplement
Our updated serving size reflects refined dosing guidance for overall fasting needs, while maintaining the same formula, total product quantity, and value in every bag, as always. Since 2019, Fast Lyte has been committed to making electrolytes from natures most pristine mineral sources.
Now with marine sourced magnesium - Extracted from north Atlantic seawater, more bioactive than other forms of magnesium thanks to its rich mineral matrix containing over 74 trace minerals and co-factors
Our fasting salts now include multimineral support - From plant based red algae, this rich in calcium, magnesium, and trace mineral profile source has been studied for decades with studies showing increases in bone mass density due to its complex and rich mineral composition like that of human bone

Show Price

9.2

The Good Intentions Club

The Good Intentions Club Fasting Electrolytes - Unflavored Electrolyte Powder - 100 Servings - Fasting Salts - Fasting Supplement - Electrolytes for Fasting

Free Shipping

Main Highlights

Fasting-Friendly Formula: Supports hydration and replenishes essential electrolytes without breaking your fast.
Complete Mineral Blend: Includes sodium, potassium, and magnesium to help maintain balance and energy during fasting.
Unflavored & Clean: Mixes seamlessly into water without any added flavors, sweeteners, or unnecessary ingredients.
100 Servings of Value: A long-lasting supply designed to keep you prepared for all your fasting protocols.
Tailored for Your Goals: Whether you're intermittent fasting or embarking on an extended fast, this mix is your reliable partner for staying hydrated and focused.

Show Price

9.0

FAST LYTE

FAST LYTE No Sugar Electrolytes Powder in The Raw | Mix in Coffee, Soup, Juice, Water, Smoothies, Broth, Anything | No Sweeteners or Flavorings | Keto & Sugar Free | Non-GMO & Vegan

Free Shipping

Main Highlights

Zero Calories: Fast Lyte offers a guilt-free hydration solution, with no added caloriesperfect for those on a keto or low-carb diet.
Versatile Mixing: Go beyond the limitations of traditional hydration drinks and easily mix Fast Lyte in coffee, soup, juice, water, smoothies, broth, or any beverage of your choice.
Anytime Hydration: Packed with essential electrolytes, Elevate any beverage or meal and unlock the power of electrolytes with this flavor-free no sugar electrolyte mix.
Clean Electrolyte Boost: Say goodbye to artificial sweetenersFast Lyte's electrolyte mix is free from sweeteners, flavorings, and added carbs.
Keto-Friendly: Fast Lyte supports your ketogenic lifestyle while delivering essential electrolytes for optimal hydration.

Show Price

8.8

Nutri-Align

Nutri-Align Fasting Salts Electrolytes Powder | 400g Sodium Potassium Magnesium Electrolytes | Pure Unflavoured Electrolytes for Extended and Intermittent Fasting | Sugar Free & Filler Free

Free Shipping

Main Highlights

FASTING ELECTROLYTES: Our specially formulated Fasting Salts powder delivers a powerful combination of 1280mg Sodium, 630mg Potassium, and 75mg Magnesium per scoop. No more guesswork or having to buy three separate products and mix them yourself!
PURE UNFLAVORED POWDER: Our Fasting Salts powder is completely free from all fillers, flavorings, sugars, sweeteners and gluten. Calorie-free so won't disrupt your autophagy or ketosis. Made with Sodium Chloride, Potassium Chloride and Magnesium Citrate forms of electrolytes for optimal absorption and bio-availability
NUTRI-ALIGN FASTING SUPPLEMENTS: our fasting range is designed to support your well-being throughout Extended or Intermittent Fasting. Empowering you to break away from sugar and junk food and progress towards your health and fitness goals as quickly as possible
400g PER POUCH: One pouch delivers 20 max daily servings if used for Extended Fasting (max daily serving 20g) or 80 servings if used for Intermittent Fasting or Keto (recommended daily serving 5g). Includes a 5g scoop to measure out servings. See the back of the pouch for our dosage calculator tool
QUALITY ASSURANCE: Our FDA-registered manufacturing facilities are accredited with GMP, BS EN ISO 9001 and HACCP Food Safety certifications, adhering to strict production quality standards to ensure your supplements are pure and safe. Halal-certified and suitable for vegetarians.

Show Price

8.6

Ultima Replenisher

Ultima Replenisher Daily Electrolyte Powder Drink Mix – Sugar Free – Lemonade, 30 Servings – Hydration Powder with 6 Key Electrolytes and Trace Minerals – Keto Friendly, Vegan, Non-GMO

Free Shipping

Main Highlights

Refresh and replenish: Ultima electrolytes powder delivers everyday hydration packed with 6 key electrolytes, vitamin C, zinc and delicious plant-based flavors; Ultima electrolytes provide enhanced hydration with 0 sugar, calories or carbs
Naturally delicious: Electrolyte drink mix made with 6 key electrolytes - magnesium, calcium, potassium, chloride, phosphorus and sodium, as well as vitamin C and zinc; naturally sweetened with organic stevia leaf and infused with real fruit flavors
Whats inside: Our daily electrolyte drink mix replenishes your electrolyte levels without the sugar, calories or artificial sweeteners; sugar free, gluten free, vegan, keto friendly and Non-GMO
Find your favorites: This 30-serving canister is perfect for having different flavors on-hand, or finding which you like the best; simply add 1 scoop to 16 ounces of water and shake or stir well, then add ice if youd like it cold
The Ultima difference: Weve spent over 25 years taking electrolyte hydration to a delicious new level; you deserve balanced hydration to replenish your body while youre living your ultimate life, every day

Show Price

8.3

Drink LMNT

LMNT Zero Sugar Electrolytes - Raw Unflavored Salt | Drink Mix | 30-Count

Free Shipping

Main Highlights

THE BEST ELECTROLYTE DRINK MIX EVER: LMNT is a tasty electrolyte drink mix with everything you need and nothing you don't perfect for training, low-carb or keto diets, fasting, and those leading active lifestyles.
MORE SALT, NOT LESS: A growing body of research reveals that optimal health outcomes occur at sodium levels 2-3x government recommendations. Thats why we say, More Salt, Not Less.
OUR FORMULATION: Each stick pack contains 1000 mg sodium, 200 mg potassium, 60 mg magnesium a truly meaningful serving of electrolytes in a science-backed ratio.
FEEL THE DIFFERENCE: All-day energy starts with optimal hydration. More energy. No brain fog or cramps. You feel the difference when you get it right.
HOW TO #STAYSALTY: Mix one stick pack with 1632 ounces of water, sparkling water, tea, smoothie, or more.

Show Price

8.1

Nutri-Align

Nutri-Align Fasting Salts Fasting Electrolytes, 120 Capsules | Pure Electrolyte Capsules for Extended and Intermittent Fasting | Sodium Potassium Magnesium Electrolytes | Sugar Free & Filler Free

Free Shipping

Main Highlights

ADVANCED FASTING CAPSULES: Our specially formulated Fasting Salts capsules deliver a powerful combination of 555mg Sodium, 297mg Potassium, 79g Phosphorus and 38mg Magnesium per 3 capsules serving. No more guesswork or having to buy separate products and mix them yourself!
NO ADDITIVES, NO FLAVORINGS, NO JUNK. The last thing you need when fasting is chemical junk! Our Fasting Salts contain ZERO flavorings, sugars, sweeteners, gluten or soy. The only ingredients are pure electrolyte salts. Includes a small amount of calcium carbonate (bulking agent to enable machine encapsulation) - also a natural electrolyte salt which will not interfere with your autophagy or ketosis in any way.
TOP-QUALITY SOURCE INGREDIENTS: Our Fasting Salts are made from premium forms of electrolytes for optimal absorption. Advanced formulation includes Magnesium Glycinate which is easier to absorb and less likely to cause any digestive upset.
120 CAPSULES PER PACK: Compact easy-to-swallow capsules. 6 capsules are equivalent to 1 scoop of the Fasting Salts powder. Recommended daily dosages: 12-24 capsules per day for EF, 3 capsules per day for IF, 1-2 capsules per day for Keto. See packaging for more detailed information about dosages.
QUALITY ASSURANCE: Our FDA-registered manufacturing facilities are accredited with GMP, BS EN ISO 9001 and HACCP Food Safety certifications, adhering to strict production quality standards to ensure your supplements are pure and safe. Fasting Salts capsules are also Halal-certified and suitable for vegetarians.

Show Price

8.1

Simply Primal

Simply Primal WATERFAST Keto Electrolyte Powder for Fasting and Hydration - Lemon Lime Flavor | Pink Himalayan Salt (Sodium), Potassium, Magnesium, Calcium | Sugar Free, Gluten Free, Soy Free

Free Shipping

Main Highlights

SPECIALLY FORMULATED FOR LONG TERM FASTING: Key electrolytes in the correct proportions allow the body to remain active and alert during fasting periods. Formulated according to guidelines from US/CA recommended daily values (with fasting in mind) to help you succeed in your fast while being KETO-friendly and contains zero sugar.
SUCCESSFUL FASTING WITH TASTY MEAL: Natural flavors and stevia eases the fasting process by making the drink taste like a meal and more palatable to drink. The great taste of lemon & lime helps you consume more water which is vital during a fast and makes the fasting process more enjoyable. Enjoy this delightful drink and continue to be active while fasting.
HIGH QUALITY INGREDIENTS: Pink Himalayan Sea salt, potassium chloride, magnesium citrate, and calcium citrate are all high-quality ingredients and common supplements found in capsules or powders taken by people across the world. These widely used ingredients offer better absorption and reduce the likelihood of side effects.
SUGGESTED ROUTINE: A 3 day fast followed by 2 days of refeeding is recommended for optimal results. A shorter 1-2 day fast will not require refeeding. Refeeding allows the body to slowly come back from a fasting state and continues the weight loss for a couple more days. Drinking bone broth after a long fast will replenish the body with rich nutrients, good fats, and collagen.
100% USA MADE: 1000mg of Sodium, 1000mg of Potassium, 100mg of Magnesium, and 420mg of Calcium per Serving and tested to be gluten-free and soy-free

Show Price

Our Best Overall Choice

Best Choice

9.7

Ultima Replenisher

Ultima Replenisher Daily Electrolyte Powder – Original Variety Pack, 20 Stickpacks – Zero Sugar Hydration Packets with 6 Electrolytes and Minerals – Sugar Free, Plant Based & Keto Friendly Drink Mix

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Refresh and replenish: Ultima electrolytes powder packets deliver balanced daily hydration with 6 key electrolytes, vitamin C, zinc and delicious plant based flavors; this Ultima Variety pack provides enhanced hydration with no sugar, calories or carbs
Naturally delicious: Electrolyte drink mix with 6 electrolytes - magnesium, calcium, potassium, chloride, phosphorus and sodium, plus vitamin C and zinc; sugar free electrolytes sweetened with organic stevia leaf extract, infused with real fruit flavors
Whats inside: Lemonade, Grape, Raspberry, Cherry Pomegranate and Orange Ultima electrolyte packets; zero calorie hydration packets replenish electrolyte levels with no artificial sweeteners; sugar free, gluten free, vegan, keto friendly, Non-GMO
Take it with you: This 20-serving pack of our electrolyte powder packets is perfect for on the go and exploring different flavors; simply add 1 stickpack of hydration powder to 16 ounces of water and shake or stir well, then add ice if youd like it cold
The Ultima Replenisher difference: Weve spent over 25 years taking electrolyte hydration to a delicious new level; you deserve balanced ingredients to hydrate your body while youre living your ultimate life, every day

Show Price

Deals are Live

Special Amazon deal ends in:

10 Best Fasting Electrolytes of 2025

Tested and Reviewed: Top 10 Fasting Electrolytes deals with expert ratings from 8.1 to a perfect 10

Ultima Replenisher

Ultima Replenisher Daily Electrolyte Powder – Original Variety Pack, 20 Stickpacks – Zero Sugar Hydration Packets with 6 Electrolytes and Minerals – Sugar Free, Plant Based & Keto Friendly​ Drink Mix

Editor's bottom line:

Main Highlights

Nutricost

Nutricost Electrolyte Complex Advanced Hydration (120 Capsules) - 8 Hydrating Electrolytes & Vitamins, Gluten Free, Non-GMO, Vegetarian

Main Highlights

FAST LYTE

Fast Lyte Fasting Electrolyte Supplement Powder | No Sugar Unflavored Raw Electrolytes | 25% RDI Magnesium and Potassium with Trace Minerals | Carnivore & Keto Friendly | Sugar Free Fasting Salts

Main Highlights

The Good Intentions Club

The Good Intentions Club Fasting Electrolytes - Unflavored Electrolyte Powder - 100 Servings - Fasting Salts - Fasting Supplement - Electrolytes for Fasting

Main Highlights

FAST LYTE

FAST LYTE No Sugar Electrolytes Powder in The Raw | Mix in Coffee, Soup, Juice, Water, Smoothies, Broth, Anything | No Sweeteners or Flavorings | Keto & Sugar Free | Non-GMO & Vegan

Main Highlights

Nutri-Align

Nutri-Align Fasting Salts Electrolytes Powder | 400g Sodium Potassium Magnesium Electrolytes | Pure Unflavoured Electrolytes for Extended and Intermittent Fasting | Sugar Free & Filler Free

Main Highlights

Ultima Replenisher

Ultima Replenisher Daily Electrolyte Powder Drink Mix – Sugar Free – Lemonade, 30 Servings – Hydration Powder with 6 Key Electrolytes and Trace Minerals – Keto Friendly, Vegan, Non-GMO

Main Highlights

Drink LMNT

LMNT Zero Sugar Electrolytes - Raw Unflavored Salt | Drink Mix | 30-Count

Main Highlights

Nutri-Align

Nutri-Align Fasting Salts Fasting Electrolytes, 120 Capsules | Pure Electrolyte Capsules for Extended and Intermittent Fasting | Sodium Potassium Magnesium Electrolytes | Sugar Free & Filler Free

Main Highlights

Simply Primal

Simply Primal WATERFAST Keto Electrolyte Powder for Fasting and Hydration - Lemon Lime Flavor | Pink Himalayan Salt (Sodium), Potassium, Magnesium, Calcium | Sugar Free, Gluten Free, Soy Free

Main Highlights

Our Best Overall Choice

Ultima Replenisher

Ultima Replenisher Daily Electrolyte Powder – Original Variety Pack, 20 Stickpacks – Zero Sugar Hydration Packets with 6 Electrolytes and Minerals – Sugar Free, Plant Based & Keto Friendly​ Drink Mix

Editor's bottom line:

Main Highlights

Deals are Live

Ultima Replenisher Daily Electrolyte Powder – Original Variety Pack, 20 Stickpacks – Zero Sugar Hydration Packets with 6 Electrolytes and Minerals – Sugar Free, Plant Based & Keto Friendly Drink Mix

Ultima Replenisher Daily Electrolyte Powder – Original Variety Pack, 20 Stickpacks – Zero Sugar Hydration Packets with 6 Electrolytes and Minerals – Sugar Free, Plant Based & Keto Friendly Drink Mix