6 Best Supplements for Fasting: A Dietitian’s Picks (2022)

When it comes to fasting supplements, it’s important to make sure that you’re getting the best of the best. Intermittent fasting is an incredibly popular healthy lifestyle, and many companies and manufacturers are looking to get in on the supplements market.

Quick Look

Nuut Daily BalanceSnake JuiceGoli ACV GummiesFast BarUMZU Zuum
Product Info30 individually packaged supplements

Helps lower cholesterol, burn fat, support fasting, and cleanses the colon

Supergreen blends

Probiotic supplements

Prebiotics that help encourage gut health

Helps replenish lost electrolytes

Diminishes dehydration
Supports the immune system

Encourages health and metabolic health
Designed for intermittent fasting

Can eat during fasting
Pre-workout that boosts energy

Supports metabolic health

Boosts energy

Natural flavor


Encourages metabolic health

Helps the immune system health

Helps boost energy

Supports physical activity

No added sugar
Delicious apple flavor

Easy gummy format



Five flavors
Boosts energy and supports workout


ConsSome side effects for those without proper macronutrients

Not vegan

Fasting not the goal

No weight loss support

No flavors

Only one flavor

High price point

High calories

Breaks gut health  fasting

Only works with physical activity

Not fasting-oriented

Comparison winner: DoFasting

Best Supplements for Intermittent Fasting

Our experts have looked through some of the best intermittent fasting supplements on the market and decided which are healthiest. Let’s take a look at these dietary supplements and all of their pros and cons.

#1 DoFasting Box


DoFasting is more than just a manufacturer of intermittent fasting supplements; it’s also a fasting app and a community. The DoFasting box includes 30 individually packaged supplements with ingredients that help burn fat, lower cholesterol, and cleanse the colon.

The complex fiber included in this intermittent fasting supplement isn’t completely digested in the body, which encourages you to feel full for longer, and helps with the desire to binge. Each packet is only 10 calories, which encourages weight loss.

Intermittent fasting supplements can sometimes use filler ingredients, but DoFasting cuts all of those out. All of the ingredients in the DoFasting box help with burning fat, losing weight, and keeping you full during your fasting period.


✅ Vegan-friendly and gluten-free
✅ Delicious and natural flavor
✅ Low calories
✅ Decreases side-effects of intermittent fasting
✅ Boosts energy


❌ Side effects for those who lack proper macronutrients

#2 Nuut Daily Balance


Nuut Daily Balance are intermittent fasting supplements that focus mostly on 100% organic pea protein. They include super green blends, probiotic supplements, and prebiotics that help encourage gut health.

These packets of Nuut Daily Balance can be added to water or a smoothie. The ingredients found in these particular supplements focus on helping with digestion and are encouraged to be taken along with healthy foods in a nutritious diet.

Nuut Daily Balance mainly focuses on boosting your immune system, digestive health, and gastrointestinal health, rather than losing weight or intermittent fasting. However, the manufacturer claims it helps with weight loss.


✅ Plant-based supplements
✅ Encourages metabolic health
✅ Great for digestive and gastrointestinal health
✅ Encourages healthy immune system


❌ Higher price point
❌ Not vegan – contains traces of eggs and dairy
❌ Fasting is not the goal of the supplements

#3 Snake Juice

Snack Juice

Snake Juice is a great intermittent fasting supplement, as it focuses heavily on replacing electrolytes lost through our day-to-day exercise and activities. If you are on an intermittent fasting diet, making sure you have a good balance of electrolytes is essential.

Snake Juice comes in a 30-packet order of water-soluble supplements to add to your own water. There are no artificial sweeteners, and each packet is soy and gluten-free and vegan.

Electrolytes are ideal for people who have high energy and a high level of dehydration throughout the day. However, electrolyte supplements on their own aren’t going to encourage weight loss or fat loss through intermittent fasting.


✅ Replenish electrolytes
✅ Sweetener-free
✅ Gluten-free and vegan
✅ Good source of sodium and potassium


❌ No weight loss or fasting support
❌ No flavors

#4 Goli ACV Gummies

Goli ACV Gummies

Goli Apple Cider Vinegar Gummies are healthcare and dietary supplements made with vitamins B9 and B12 that encourage healthy immune function, heart health, and new cell production.

Having a sound immune system and good heart health is paramount for intermittent fasting. Goli Gummies are gluten-free, gelatin-free, and vegan-friendly. The formula allows only the delicious apple taste to come through, not the vinegar.

ACV is well known for being good for your heart health, cellular energy production, and healthy immune system function. They’re a great probiotic supplement full of essential nutrients.


✅ Easy gummy format
✅ Delicious apple flavor
✅ Heart health and immune system support
✅ Antioxidants


❌ Not focused on fasting
❌ Only one flavor
❌ Higher price point per unit

#5 Fast Bar

fast bar

Fast Bar is a snack that is specifically designed for intermittent fasting. It’s specifically designed for people who are fasting to help with hunger without disrupting their fasting state. It’s perfect for a morning snack during your fasting window or something to enjoy right before bedtime.

Fast Bar comes in a variety of different flavors. It’s made without soy, dairy, and gluten but does contain whole food ingredients and plant-based proteins. Fast Bar doesn’t trigger your body’s glucose response, which keeps your body fasting.

However, if you’re fasting for gut health, then you may find that the Fast Bar does break your fast in that way. While it doesn’t trigger your body’s nutrient system, it will trigger a digestive response. Fast Bar also has a total of 200 calories.


✅ Eat during your fasting window
✅ Gluten and soy-friendly
✅ Vegan-friendly
✅ 5 different flavors


❌ Break your fast for gut health
❌ Higher calorie count for just one bar
❌ Higher price point per unit

#6 UMZU Zuum Pre-Workout

UMZU Zuum Pre-Workout

UMZU Zuum Pre-Workout is a delicious pre-workout supplement that helps boost your energy and encourages a faster immune system and longer stamina. Zuum has vitamins B1 and B17, which both encourage faster metabolism.

Zuum is also a great source of potassium and sodium, as well as natural caffeine that can help keep you energized throughout the day, even after the completion of your workout. Zuum is also vegan and dairy-free, making it accessible to a wide variety of people.

As a pre-workout supplement, Zuum is great for supporting exercise and athletics. However, it isn’t a purely intermittent fasting supplement. It works best paired with physical activity, not just fasting.


✅ Supports your workout
✅ Boosts energy
✅ Two delicious flavors
✅ Gluten-free and vegan


❌ More workout support than fasting support
❌ Only 21 serving

How to Choose the Best Supplement for Intermittent Fasting

So, how did we decide which intermittent fasting supplements made the list? We made sure to look at three specific things: ingredients, health support, and what the experts are saying.

When taking the plunge to purchase new diet supplements, it’s important that the ingredients support a balanced diet, don’t have any added sugar, and are available for many people to eat. Gluten-free, soy-free, and vegan-friendly ingredients are at the top of our list.

Next, it’s important that the supplements aren’t just there to suppress your appetite. Soluble vitamins, extra nutrients, and rich dietary sources are essential to our choice of intermittent fasting supplements.

Finally, it’s crucial what doctors have to say. Many supplements aren’t approved by doctors, but manufacturers try to cover it up anyway. All of these ingredients found in the above fasting supplements are healthy for you and approved by the experts.

A Word From Our RD

When it comes to intermittent fasting, the feeling of an empty stomach can make waiting for your eating window particularly difficult. If you’re looking to lose weight, then choosing the right supplements might make things much easier, especially if they don’t break your fast.

Intermittent fasting is a great way to take care of our body, but it isn’t for everyone. Some people will need more eating hours than others, while others may struggle with the rigors of a fasting routine.

However, if you’re able to find a good balance between your eating window and fasting window, you’ll find that intermittent fasting is a great way to burn body fat.

Intermittent fasting isn’t about controlling what you eat but rather how you eat. The foods you eat during your eating window should still be healthy but don’t feel the need to drastically cut your calories.

Before starting with a new diet, make sure you talk to your doctor about the side effects of fasting.


Why do I need electrolytes?

Electrolytes help balance fluids in the body. They regulate muscle function, as well as nerve function, rebuild damaged tissue, and help hydrate the body. Without enough electrolytes, you’re at risk for muscle cramps, trouble blood clotting, and trouble regulating fluids.

How can I make my fasting more effective?

Intermittent fasting is definitely worth a look if you are searching for a simple yet effective weight loss regime. It can be difficult to get into, but it is otherwise completely safe and hugely beneficial to your heaThe best way to have an effective fast is to make sure you stay on a strict routine, eat whole foods, and keep your sugars low. The most effective foods you can eat before your fast are keto-friendly foods to help encourage the fat-burning state of ketosis.

Do supplements break a fast?

Some supplements can break your fast. It depends on what you’re fasting for. If you’re fasting for weight loss, supplements that are less than 500 calories are safe to have. However, if you’re fasting for gut health, you want to steer clear of any supplements that will activate your digestive tract.


Fasting is a very popular lifestyle in terms of health and fitness. This means that there are going to be more and more manufacturers trying to cash in on the hype. Now, you know some of the best supplements out there that will help with your intermittent fasting diet.

These are the best supplements for fasting and come in a variety of flavors, with many different vitamins and health benefits. They’re easily enjoyed by everyone, with gluten-free and vegan-friendly ingredients.

Edibel Quintero, MD
Edibel Quintero is a medical doctor who graduated in 2013 from the University of Zulia and has been working in her profession since then. She specializes in obesity and nutrition, physical rehabilitation, sports massage and post-operative rehabilitation. Edibel's goal is to help people live healthier lives by educating them about food, exercise, mental wellness and other lifestyle choices that can improve their quality of life.

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