5 Best Electrolyte Drops For Optimal Hydration When Fasting

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5 Best Electrolyte Drops For Optimal Hydration When Fasting

Conquering a fast can be a rewarding experience, but staying hydrated throughout is challenging. Discover the best electrolyte drops that help you on your journey.

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By Aimee Shelton
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Edited by Jovan Mijailović

Published May 23, 2024.

A woman drinking water enriched with mineral drops for fasting hydration.

Hydration is essential when fasting, whether you want to balance your insulin, reduce dietary ketosis, or achieve another fitness goal. You also won't take the electrolytes your body needs to fire nerve signals, contract muscles, create hormones, or clear cellular waste.

For example, you might want to supplement with a sports drink, but your body needs sodium, magnesium, and potassium in amounts different from those provided for the beverages. Sports drinks may also contain sugar, carbohydrates, and flavorings that don't align with the purpose of your fast.

Sugar-free electrolyte drops are a convenient and easy way to access these essential nutrients, so let's look at the best ones to ensure optimal fasting hydration.

Our 5 Best Electrolyte Drops For Water When Fasting

  1. Best overall for water when fasting - MAYU Electrolyte Drops
  2. Best keto-friendly drops for water when fasting - Keto Chow
  3. Best sugar-free drops for water when fasting - Total Hydration Daylyte
  4. Best potent drops for water when fasting - Trace Minerals Endure
  5. Best flavorless electrolyte drops for water when fasting - Buoy

Why Hydration Is Essential for Fasting

Here's why hydration is crucial during a fast:

  • Your body is mostly water: We're around 60% water, and all bodily functions rely on it. During a fast, you're not replacing fluids through food intake, so staying hydrated becomes even more critical.
  • Flushing toxins: Water helps your body eliminate waste products produced during cellular processes. Fasting can lead to increased waste as your body breaks down stored energy, so flushing them out is essential.
  • Regulating body temperature: Water regulates your internal temperature. Dehydration can lead to overheating, which can be dangerous.
  • Electrolyte balance: Electrolytes are minerals that help with muscle and nerve function. Fasting can lead to electrolyte imbalances, which can cause fatigue, headaches, and dizziness. Water helps maintain these levels.
  • Digestive health: Even when you're not eating, your digestive system still needs water to function correctly and prevent constipation.
  • Nutrient transport: Water transports nutrients throughout your body, even when you're not consuming food.
Best overall drops for water when fasting


Electrolytes Mineral Drops
Electrolytes Mineral Drops
Electrolytes Mineral Drops
Electrolytes Mineral Drops

MAYU Minerals | Electrolyte Drops

Replenishing your body's essentials




Magnesium, Chloride, Sodium, 72 organic trace minerals


1 fl.oz./ 30 mL

MAYU Electrolyte Drops contain sodium, potassium, and magnesium, along with 72 other trace minerals.

Fasting imbalances in these essential minerals, so the contents will help your body function properly. Remember to consult your physician before supplementing, especially if you have any underlying health conditions.

Zero additives

72 additional trace minerals

Subscription available

Convenient borosilicate glass dropper

Slight mineral taste

Best keto-friendly drops for water when fasting


Keto Chow Electrolyte Drops
a bottle of electrolyte drops next to a dropper
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Keto Chow Drops




Magnesium, chloride, potassium


4 fl. oz./120ml

Keto Chow is an electrolyte blend of drops for water when fasting tailored especially for keto needs. A single bottle contains chloride, potassium, and magnesium.

These minerals are essential if you're on a keto diet, as the body switches from glucose to ketones as its fuel source.

Specially formulated for the keto lifestyle

No additives

Available in many different sizes

Packaged in plastic

Tastes salty at recommended dilution

Best sugar-free drops for water when fasting


Daylyte Drops
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a person holding a glass of water with the caption just add to any drink

Total Hydration Daylyte Drops




Potassium, magnesium, sodium, zinc, calcium, L-Lysine, lithium, boron


4 fl. oz./118 ml

Daylyte Drops offer a convenient way to add electrolytes to your water when fasting without any added sugars or artificial sweeteners.

They're packed with essential electrolytes like magnesium, sodium, potassium, and seven other trace minerals crucial for optimal hydration and muscle function.

Additionally, the presence of magnesium may help prevent stomach upset sometimes experienced with other electrolyte drinks.

Zero carbs and sugars

Allergen free

Subscription available

Contains guar gum and potassium sorbate

Packaged in plastic

Best potent drops for water when fasting


Trace Endure Drops
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Trace Minerals Endure Drops




Magnesium, chloride, potassium, sodium, sulfate


4 fl. oz./118 ml

Trace Endure Drops are a concentrated electrolyte supplement designed to maximize nutrient absorption from water when fasting.

Unlike caffeine, which provides a temporary boost followed by a crash, these provide sustained benefits by ensuring your body gets the most out of the nutrients you consume.

This can be especially helpful for athletes or those with demanding schedules who need to stay on top of their game.

Naturally sourced and highly absorbable

Instant and effective hydration

Reduces muscle cramps

Packaged in plastic

Excessive intake may upset your stomach

Best flavorless electrolyte drops for water when fasting


a close up of a bottle of buoy hydrant
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Buoy Electrolyte Drops




Sodium, chloride, potassium, magnesium, boron, selenium, manganese, silica, vitamin B complex


2 fl. oz./60ml

Most electrolyte drops have a natural salty flavor. If you don't like the mineral taste, Buoy is a suitable substitute. It contains chloride, sodium, potassium, and magnesium, enriching your water and keeping you hydrated.

You also get 87 ionically charged trace minerals that revitalize you at the cellular level, supporting gut health, nutrient absorption, and detoxification.

Includes B vitamins and antioxidants


100% PCR bottles

Smaller bottle than other alternatives on this list

Requires correct dosage for the flavorless taste

Choosing Electrolyte Drops When Fasting: Factors to Consider

Fasting restricts your body's usual intake of nutrients, making electrolyte balance even more crucial. Here are key factors to consider when choosing electrolyte drops specifically for fasting:

  • Electrolyte Profile: Look for drops containing a balance of sodium, potassium, magnesium, and sometimes calcium. These electrolytes are vital for hydration, muscle function, and nerve transmission. Ensure the dosage aligns with your activity level during fasting.
  • Sweeteners and Additives: Many electrolyte drops contain artificial sweeteners or flavors. Depending on your fasting goals, these could break your fast. Opt for unflavored drops or those with natural sweeteners like stevia if maintaining a strict fast is important.
  • Form and Convenience: Drops are portable and easy to dilute in water, making them ideal for on-the-go use during fasting. When making your choice, consider factors like potential taste and ease of mixing.
  • Quality and Reputation: Choose brands like MAYU, which is known for quality ingredients and third-party testing. It ensures you're getting a safe and effective product.

Replenish Your Electrolytes and Maximize Fasting Results

While fasting isn't for everyone, it can be an excellent practice to help you achieve your lifestyle goals. Maintaining hydration and electrolyte balance can be challenging, and that's where electrolyte drops come in.

Using electrolyte drops can help avoid the diuretic effects of fasting and its side effects. As always, take the time to learn which product best fits your dietary restrictions, lifestyle goals, and desired outcomes.

As you are taking proactive steps towards a more vibrant and energetic lifestyle, you can be confident in the hydration-enhancing power of MAYU Minerals Electrolyte Drops.