The Best Electrolytes for Fasting

Support healthy, prolonged fasts with the latest innovation in electrolyte supplementation, allowing you to get the electrolytes you need without breaking your fast.

Electrolytes are crucial to fasting, yet most electrolyte options on the market today actually break your fast.

Electrify your fasting journey with Buoy's zero calorie electrolytes. Unflavored and unsweetened hydration drops perfectly formulated to not break your fast. Great for Intermittent Fasting (IF), Keto and prolonged fasts.

The Importance of Electrolytes for Fasting

How To Prep For Your Fast

What Ingredients To Avoid

Fasting Benefits

Our Electrolyte Solution

Plus, a sneak peek of our favorite electrolyte formula to use for any fast!

WE RECOMMEND STARTING WITH

Fasting Formulated 🔥

Hydration Drops
Rated 4.7 out of 5
Based on 3085 reviews
Hydration Drops

3 BOTTLES · 120 SERVINGS

Deep ocean electrolytes and 87+ ionic trace minerals to support prolonged, healthy fasts.

One Month Supply
No sugar, sweeteners, flavors or artificial ingredients that may break your fast
Hydrate for less than $1/day +100% Money Back Guarantee
Supplement Facts

The Importance of Electrolytes for Fasting

🤒 Avoid The "Keto Flu"

People starting fasts can feel like they have the flu, even when they don’t--irritable mornings, dizziness, low energy and insomnia.

In your new metabolic state, your body burns fatty acids instead of glucose for energy. Your insulin levels may drop, cueing your kidneys to release sodium from your body.

That's why low glycogen and insulin levels have similar symptoms as dehydration--you’re peeing out all those energy bunny electrolytes.

Maintain a steady intake of key electrolytes and minerals to help fight the Keto Flu.

🔋 Stable Energy Levels

Perhaps the most common issue with fasting is low energy levels throughout the day.

Without food and most beverages as an option to rehydrate, you're often left feeling depleted.

Support all day energy by getting in fasting-friendly electrolytes!

🧠 Support Cognitive Function

Fasting can often induce brain fog and poor concentration due to electrolyte imabalnces.

Improve mental clarity and focus with a steady supply of electrolytes during your fasting journey with proper, balanced hydration levels.

🏃‍♂️ Enhance Your Exercise

Electrolyte supplementation becomes an absolute necessity if you're going to be exercising while fasting.

Losing just 2% of fluids and key electrolytes can significantly impair physical performance. When you exercise, you lose 6 to 10%.

Infusing your water with these essential minerals will optimize your exercise and movement by replenishing and restoring already lower levels of electrolytes for longer, more sustainable workouts.

🦵Prevent Muscle Cramps

Electrolytes like sodium are crucial to every cell and system to muscle contractions, transport nutrients and send signals in your nervous system.

Without enough of them, you'll be prone to cramping, which can be some of the more uncomfortable experiences during a fast.

Say goodbye to cramps for good with a balanced, sugar-free electrolyte and mineral infused supply of water.

⚖️ Balanced Blood Sugar

While fasting, you're bound to feel hungry.

With a supply of electrolytes and trace minerals like chromium that support satiety and insulin sensitivity, you'll have fewer cravings to make for a more comfortable journey.

⚡️ Maintain Hydration

Our bodies don’t store electrolytes for long, so you’ll deplete the existing ones stored in your body’s tissues pretty quickly where you’ll start to feel the negative impacts of electrolyte deficiencies: fatigue, headaches, grogginess, muscle cramps, nausea and a decline in performance.

When fasting, your body changes metabolic states from burning carbohydrates for energy to a ketogenic state where you burn fat—hence the popular diet named “Keto”.

In this new fasting state, you're more easily susceptible to electrolyte imbalances that can undermine your fast and resemble flu-like symptoms.

Health Benefits of Fasting

There's some science behind the hype—even intermittent fasting is linked to lasting health benefits from brain health to weight loss.

🫀
Heart Health

LOWER LDL & TOTAL CHOLESTEROL

A recent study linked alternate day fasting to lower levels of key heart health markers like triglycerides, total cholesterol and the "bad" LDL cholesterol.

🧠
Cognitive Protection

COGNITION BOOSTER

While animals have only been studied thus far for links to brain health, the results have been overwhelmingly positive for cognitive performance.

Fasting can reduce inflammation which may lead to neurodegenerative disorders like Alzheimer’s disease and Parkinson’s, it may also enhance cognitive function by increasing the generation of nerve cells in the brain.

🔥
Weight Loss

METABOLISM BOOSTER

Not only does fasting limit your total calories consumed, but it also revs your metabolism.

Studies link consistent use of Intermittent Fasting to effective reductions in weight by many dieters.

🍩
Blood Sugar Control

REDUCED INSULIN RESISTANCE

Even doing intermittent fasting just three times a week can help your body transport glucose from your blood to your cells more efficiently, lowering your risk of Type 2 Diabetes.

🧊
Soothe Inflammation

REDUCED LEVELS OF C-REACTIVE PROTEIN

A 2022 study showed that moderate intermittent fasting practices reduced key markers of inflammation like lower levels of C-reactive proteins.

Buoy's Solution: The Perfect Electrolyte Balance for Fasting

Buoy's purposefully unflavored and unsweetened line of zero calorie electrolyte drops infuse any beverage with fast-acting hydration that works at the cellular level. Sourced from nature's most powerful ingredients.

Clean & Pure — Fasting Formulated:
✓ 0 Sugar
✓ 0 Calories & Carbs
✓ 0 Sweeteners, Flavors
✓ Deep Ocean Electrolytes
✓ 87+ Ionic Trace Minerals
✓ Energy-Boosting B Vitamin Complex

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"My only electrolyte and mineral supplement I'm using on my 16:8 hour intermittent fasts"
- Trent D

"My electrolyte and mineral keto sidekick that fits in my pocket"
- Eileen M

"My favorite zero sugar electrolyte! No calories or carbs!"
- Christina K

👀

Even "Popular" Zero-Sugar Electrolyte Powders May Break Your Fast

Popular zero sugar electrolyte powders typically have sweeteners and "natural" flavors which may spike blood sugar and spark metabolic reactions in your body that can undermine, or even break, a fast.

One of the reasons Buoy is so effective is because of it's purposefully unflavored and unsweetened, naturally-sourced and unprocessed electrolyte and mineral profile.

How To Use Buoy's Electrolytes During Fasting

Essential electrolytes, 87 ionic trace minerals and vitamins delivered in their most bioavailable form factor for fast-acting hydration.

— One Serving = One Short Squeeze
— 40 Servings Per Bottle
🔥
7 - 10 Servings While Fasting
🥑
4 - 7 Servings Outside of Fasting
💦
Dissolves Instantly & Evenly In Any Beverage
Fast Better With Buoy's Electrolyte Drops

How Buoy's electrolytes stack up for fasting

🚫 🚫 🚫 🚫 🚫 🚫 🚫 $1.53+ Others $0.25 Buoy No Sugar, Stevia, Dextrose, Natural Flavors 87 Ionic Deep Ocean Minerals Harvested, Not Manufactured, Sea Salt Bioavailable Bioactive Sustainable Blends With Any Drink Cost Per Serving
No Sugar, Stevia, Dextrose, Natural Flavors 87 Ionic Deep Ocean Minerals Harvested, Not Manufactured, Sea Salt Bioavailable Bioactive Sustainable Blends With Any Drink Cost Per Serving Buoy $0.25 Others 🚫 🚫 🚫 🚫 🚫 🚫 🚫 $1.53+
  • ⭐️⭐️⭐️⭐️⭐️

    3,000+ Buoy Reviews

    • Hydration
    "Electrolytes that won't break your fast"

    Sophia V

    • Hydration
    "Electrolytes that won't break your fast"

    Sophia V

    • Hydration
    • Immunity
    • Energy
    "Don't start IF without Buoy!"

    Sebastian D

    • Hydration
    • Immunity
    • Energy
    "Don't start IF without Buoy!"

    Sebastian D

    • Hydration
    • Immunity
    • Energy
    "Using these during AND after my fasts"

    William E

    • Hydration
    • Immunity
    • Energy
    "Using these during AND after my fasts"

    William E

  • HEAR FROM HEALTH PROFESSIONALS

    Safety and Precautions

    Consisting of scientists, researchers, pharmaceutical experts, and health professionals, Buoy's Board of Health Professionals continue to challenge and uphold us and our products to the highest standards.

    ✓ Third Party Tested
    ✓ NonGMO Project Certified
    ✓ Vegan
    ✓ Gluten and Major Allergen Free
    ✓ 3x More Bioavailable Form Factor
    ✓ Product White Papers
    ✓ 3 Clinical Studies Started in 2023

  • Dr. Lianli Li, Ph.D.

    President

    President Gateway Pharmaceutical, St. Louis, Missouri

    “Most of us are living our lives under the optimal hydration level. Buoy gives consumers the proper hydration they need, without having to reach for a sugary, artificial sports drink.”
    Dr. Lianli Li, Ph.D.

    President

    President Gateway Pharmaceutical, St. Louis, Missouri

    “Most of us are living our lives under the optimal hydration level. Buoy gives consumers the proper hydration they need, without having to reach for a sugary, artificial sports drink.”
    Martha Rosenau

    Registered Dietician

    “My patients with gastrointestinal disease are truly benefiting from Buoy. They are feeling more vibrant and energetic with this amazing blend of electrolytes. Since it’s free of both sugars and zero-calorie sweetener, it’s the perfect way to rehydrate without further aggravating the gastrointestinal tract. Thank you for creating a dietitian’s dream - the perfectly balanced electrolyte replenisher, free of any form of sweetener.”
    Martha Rosenau

    Registered Dietician

    “My patients with gastrointestinal disease are truly benefiting from Buoy. They are feeling more vibrant and energetic with this amazing blend of electrolytes. Since it’s free of both sugars and zero-calorie sweetener, it’s the perfect way to rehydrate without further aggravating the gastrointestinal tract. Thank you for creating a dietitian’s dream - the perfectly balanced electrolyte replenisher, free of any form of sweetener.”
    Melissa Nohr

    JD, BCHHP, CBNP

    “I was diagnosed with POTS a year ago and they make a point to help make daily hydration easier and more accessible to those with chronic illnesses. After using Buoy for one year as a customer, I asked to personally invest in the company.”
    Melissa Nohr

    JD, BCHHP, CBNP

    “I was diagnosed with POTS a year ago and they make a point to help make daily hydration easier and more accessible to those with chronic illnesses. After using Buoy for one year as a customer, I asked to personally invest in the company.”
Dietary Sources of Electrolytes
and their limitations

How to use food to prep for a fast and what to look out for.

Why Salt Source Matters

Modern Agricultural Practices

Commercial Water Processing

Electrolyte Rich Foods

Why Use Buoy?

Try The Cleanest Electrolytes On Earth —>
Dietary Sources of Electrolytes
and their limitations

How to use food to prep for a fast and what to look out for.

Why Salt Source Matters

85% of an average American's sodium intake comes from nutrient sparse sources like the cheap and processed salts found in sports drinks and traditional electrolyte products.

❌ Sodium Bicarbonate
❌ Sodium Chloride
❌ Sodium Benzoate
❌ Pink Himalayan Salt (recently linked to heavy metals)
✅ Real Sea Salt

Modern Agricultural Practices

Even if you’re eating a balanced, organic diet when not fasting, you’re still likely deficient in electrolytes and minerals because of how we source our food and water.

Modern agricultural practices have stripped our soil, and therefore our food, our essential minerals and nutrients. Today, our food is exponentially less nutrient and mineral dense than it was even 50 years ago, making it hard to replenish these energizing minerals with diet alone.

Commercial Water Processing

Bottled water, even spring water, goes through production processes that strip beneficial micronutrients out. What’s left is a mineral content that’s just enough to market, but not enough to matter, especially when it comes to trace minerals.

Electrolyte Rich Foods

Without food intake to provide electrolytes and minerals, you're left to supplement these essential nutrients elsewhere.

So, when you’re not fasting, stock up on these foods rich in electrolytes and minerals to support your fasting states.

✓ Avocados
✓ Bananas
✓ Watermelon
✓ Spinach
✓ Lentils
✓ Pickle Juice
✓ Sunflower Seeds
✓ Apricots

Why Use Buoy?

Unlock all the health benefits of fasting with without the worry.

Adding Buoy is the easiest way to replenish your electrolytes and minerals without worrying about:
— Electrolyte Source
— Trace Mineral Content
— Sugar, Sweeteners, Flavors
— Calories or Carbs
— Salt Contaminants

Try The Cleanest Electrolytes On Earth —>
Dietary Sources of Electrolytes
and their limitations

How to use food to prep for a fast and what to look out for.

Why Salt Source Matters

85% of an average American's sodium intake comes from nutrient sparse sources like the cheap and processed salts found in sports drinks and traditional electrolyte products.

❌ Sodium Bicarbonate
❌ Sodium Chloride
❌ Sodium Benzoate
❌ Pink Himalayan Salt (recently linked to heavy metals)
✅ Real Sea Salt

Modern Agricultural Practices

Even if you’re eating a balanced, organic diet when not fasting, you’re still likely deficient in electrolytes and minerals because of how we source our food and water.

Modern agricultural practices have stripped our soil, and therefore our food, our essential minerals and nutrients. Today, our food is exponentially less nutrient and mineral dense than it was even 50 years ago, making it hard to replenish these energizing minerals with diet alone.

Commercial Water Processing

Bottled water, even spring water, goes through production processes that strip beneficial micronutrients out. What’s left is a mineral content that’s just enough to market, but not enough to matter, especially when it comes to trace minerals.

Electrolyte Rich Foods

Without food intake to provide electrolytes and minerals, you're left to supplement these essential nutrients elsewhere.

So, when you’re not fasting, stock up on these foods rich in electrolytes and minerals to support your fasting states.

✓ Avocados
✓ Bananas
✓ Watermelon
✓ Spinach
✓ Lentils
✓ Pickle Juice
✓ Sunflower Seeds
✓ Apricots

Why Use Buoy?

Unlock all the health benefits of fasting with without the worry.

Adding Buoy is the easiest way to replenish your electrolytes and minerals without worrying about:
— Electrolyte Source
— Trace Mineral Content
— Sugar, Sweeteners, Flavors
— Calories or Carbs
— Salt Contaminants

Why Choose Buoy

Sugar Free

Stevia & Sweetener Free

No Flavors

No Calories or Carbohydrates

NonGMO & Vegan

3x More Bioavailable Form Factor

Fasting Formulated for
Try Buoy For A Month Risk Free

FAQs

We want you to ask questions about your fasting journey.

Electrolytes are vital nutrients that support whole-body health. From our mood to our muscles and ability to detox, electrolytes play a key role in over 300 enzymatic reactions in our body that benefit daily life.

While fasting, you're no longer getting electrolytes from food and beverages. Furthermore, with longer fasting windows, your body changes metabolic states from burning glucose for energy to fat. When this happens, your body cues your kidneys to dump excess fluids and sodium, meaning you'll be running through electrolytes faster than you would outside of fasting windows.

Your body will run through any remaining electrolytes stored in tissues pretty quickly further depleting your body of optimal electrolyte levels required to maintain and perform basic bodily functions and daily tasks.

Some of the first signs of an electrolyte imbalance while fasting may be fatigue, dizziness, headaches, muscle cramps and other symptoms that are also associated with dehydration.

While some changes to how you feel are normal when fasting, supplementing electrolytes helps support longer, more comfortable fasts.

By definition, a fast is a period of time where you abstain from eating food.

While there are some studies that show minimal amounts of specific foods and beverages might not break a fast, there's more evidence to show that these portions do undermine the benefits.

Buoy delivers electrolytes and essential nutrition without the macro-nutritional profiles that induce metabolic state changes.

Sports drinks are typically high in sugar, calories, carbohydrates and other additives that would instantly break a fast.

Buoy is made without sugar, sweeteners, flavors, calories, carbohydrates, additives or any ingredient that will break your fast. Our clean and pure ocean electrolytes and minerals dissolve instantly and evenly into water or any beverage to replenish, refuel and rehydrate.

Yes!

Buoy's electrolyte drops will support longer, more comfortable fasting windows during your intermittent fast by infusing your water with electrolytes and 87+ trace minerals every cell and system in your body crave.

For the most part, electrolyte supplements will break your fast.

Even the zero-sugar electrolytes are filled with sweeteners, flavors or minimal calories that will undermine your fast.

Buoy is one of the only fasting-formulated electrolyte options that will fortify, not compromise, your fast.

While fasting, use up to 12 servings of Buoy per day, throughout the day. It's best to start in the morning and dose Buoy evenly throughout the day to keep optimal electrolyte and mineral levels stable for a comfortable fasting experience.

Yes!

Buoy stacks seamlessly with whatever supplements and vitamins you're using on your fasting journey.

The amount of electrolytes needed during fasting varies by individual. It's important to start with small amounts and adjust based on your body's signals. Using a clean electrolyte supplement like Buoy can help maintain balance without unnecessary additives.

Focus on sodium, potassium, magnesium, and calcium. These are crucial for your body's functions during fasting. Opt for natural sources like real sea salt to avoid the downsides of processed salts.

There's no universal rule, as everyone's needs are different. Pay attention to how you feel and adjust your electrolyte intake accordingly, ensuring not to overconsume, especially sodium.

Choose a high-quality electrolyte supplement like Buoy, which is designed to replenish essential nutrients without breaking your fast or adding unwanted extras like sugar or artificial flavors.

Timing can depend on personal preference and fasting schedule. Some people find it helpful to supplement in the morning, while others prefer during or after physical activity, or whenever they feel they might be low on electrolytes.