Best 5 Day Fasting Programs 

Fasting is often promoted as a way to promote mental clarity, reduce inflammation, and lose weight if done correctly. That’s why I’ll be looking at the best 5 day fasting programs so that you can see which ones may be best for you depending on your diet, your expertise levels, and your budget.

#1: ProLon


The reason why ProLon is one of the best 5 day fasting programs is that they’re one of the only companies who directly cater to that regime. The other entries you’ll read about in this article are suppliers of products and programs that you can use to design your five-day fast, but ProLon takes all that extracurricular work out of your hands.

They offer five-day programs that come in five boxes. Each box contains your meals for one day. The meals are all in the grab-and-go variety so you don’t have to cook or clean anything (besides your cutlery and maybe a glass of water). All of these meals are plant-based and you get a good amount of variety too.

With ProLon, you won’t just be eating the same boring green smoothie mix for every meal. You’ll get a wide selection of meals like soups (including a mouth-watering minestrone soup), snacks like kale chips and nut bars, as well as some drink mixes. 

A one-time shipment of ProLon costs CAD $299, and buyers have praised it as one of the best 5 day fasting programs. Here’s what one user wrote about it.

The convenience, and the food was awesome….way different than expected. Prolon gave me to opportunity to pause from any number negative food habits I have. I feel like I have a reset. Today is my fifth day of my journey and hopefully this is my stepping stone to a healthier way of life. And the weight loss is a plus.”


  • 3.9/5 stars based on more than 1,800 pieces of customer feedback on Trustpilot
  • Largely plant-based options
  • Designed specifically for five-day fasts

#2: BetterMe


The links between mental health and physical well-being are proven by scientific literature. BetterMe focuses on those links by providing you with the tools to improve both aspects of your health at the same time. You can use their app to create harmony between your mind and body, turning your weight loss fantasies into sustainable, lifelong habits that you genuinely enjoy.

While BetterMe doesn’t have a dedicated five-day fasting protocol, it’s still one of the best 5 day fasting programs due to the guidance it provides. With the app, you can track your workouts and food intake. You can plan your meals in advance, meaning that you can build your own fasting program if you know what you should eat during the five-day period. 

The app’s functionality and insights into your health are other advantages as you can see how your performance changes over the five days. I’d recommend BetterMe for people who want to incorporate fitness into their fasting or who just want to download a free app. 

With Betterme I realized that you don’t need to be in a tug of war to lose weight. Finding the right workout program, mapping out meal plans that include your favorite foods and provide your body with all the essential nutrients, staying within a caloric deficit, and developing a positive mindset is all you really need to finally see progress. Anyone who wants to slim down should download the Betterme app!” wrote one user.


  • 4.2/5 stars based on more than 680 pieces of customer feedback on Site Jabber
  • Health-oriented app
  • Available in over 190 countries

#3: Flat Tummy Co 

Flat Tummy Co 

Flat Tummy Co is a female-focused brand of weight management and holistic health products. Many of their items, which range from teas to shakes to gummies, include appetite suppressants and energy-boosters like green tea extract. They’re also great for people with dietary restrictions like vegans or those with celiac disease.

What makes Flat Tummy Co one of the best 5 day fasting programs is that their products are all low in calories if not outright calorie-free. Once again, you’ll have to design the program yourself to make sure that your body is staying in a fasted state or that you’re getting enough energy to fuel you throughout the day, but Flat Tummy Co’s catalog makes it easy to do that. 

One customer wrote, “So far I only I use the tea’s (I also have the tumbler which holds temp and is super cute & handy& the flavor is earthy but naturally sweet (in my opinion) which makes the consumption easy & satisfying in combination with THE RESULTSSSS!?!!! I literally after 2 cleanse’, and and a few days of activation tea, have a slimmer waist, bloat is NOR & it even adds a great energy boost! Forever team Flat Tummy Co.!


  • Assortment of weight loss teas, shakes, and gummies
  • 4.8/5 stars based on more than 1,300 pieces of customer feedback on Trustpilot
  • Products are oftentimes vegan and gluten-free

4. Raw Generation 

Raw Generation 

If you’re shopping from Raw Generation for one of the best 5 day fasting programs then you’re going to want to check out their Raw Generation Skinny Cleanse. It purports to bring you many of the pros of fasting like mental clarity and a system detox, but most importantly, you get to drink 6 delicious cold-pressed juices every day while on the cleanse. 

Since the calories you’ll consume each day on the Raw Generation Skinny Cleanse are extremely low (less than 900 calories a day), you’ll want to cut back on your activity while you’re doing it. However, despite the low calories, you’ll still get ample amounts of nutrients and a heck of a serving of flavor in each of the juices. 

The Raw Generation Skinny Cleanse costs $215 and was praised by one customer as being “Super fresh and authentic. Takes a minute to adjust but provides plenty of nutrition to get through the day. I also drank plenty of water and after adjusting never felt hungry. Customer service was incredible. I called for support and a real person actually answered the phone!!! High quality product with great customer support. I highly recommend it.


  • 4.4/5 stars based on more than 3,000 pieces of customer feedback on
  • Plant-based juices
  • sugar-free and gluten-free

#5: NutriSystem


Of all the best 5 day fasting programs I’ve laid out, NutriSystem is arguably the most famous and the most hands-off. They provide you with meals and weight loss programs to help you reach the goals that you laid out for them. As such, they work directly to help you get to where you want to be weight-wise.

They provide you with pre-made meals every four to six weeks. These meals cater to different diets and preferences and include low-calorie-versions of indulgent treats and snacks. Their most popular plans start for as little as $13 a day.

I have lost 18.5 lbs in 2 mos. My hubby and I joined the program at the same time and he has lost 21 lbs. We lost 5 lbs on the first week! The Numi app is very easy to use and helped us count and control our calories intake. All their meals taste good and we have our favs (pasta). Also love the fact that we can get recipes and guidance in regards our new diet lifestyle. 100% recommend it!! Happy Customer over here!” wrote one NutriSystem user.


  • 4/5 stars based on more than 13,000 pieces of customer feedback on the brand’s website
  • Better Business Bureau-accredited
  • Plans are specifically catered to the individual

#6: Powerful Nutrition

Powerful Nutrition

Powerful Nutrition is an awesome option for those who still want to push themselves during their five-day fast. The brand’s products are packed with protein to repair muscle after workouts while also keeping you satiated.

Their catalog includes products like:

  1. Powerful Nutrition Mocha Double Espresso Protein Shake
  2. Powerful Nutrition Peanut Butter & Honey Protein Oatmeal
  3. Powerful Nutrition Powerful Hydration Electrolyte Drink Mix 

Luckily, you can find their products in places like Walmart or Amazon, so the hardest part about using them on a five-day fast is trying not to eat everything at once!

This powerful instant oatmeal cup provides a great high protein start to the day! I love the taste, but I can also add flax seed, raisins , blueberries, etc to change it up. I also love how easy it is to prepare! I would recommend this product!” wrote one customer on the Powerful Nutrition Instant Oatmeal Cup in their Amazon review.


  • Mix of supplements and whole foods
  • High-protein meals designed to keep you full
  • Items are widely available at many common retailers

  #7: Fast Bar

Fast Bar

Fast Bar’s bars are specifically designed to keep you in a fasted state. Wow, no surprise there. But that means that if you’re trying to maintain the benefits of a fasted state (i.e. not just weight loss), their bars may be what you’re looking for in your five-day fast.

Each bar comes out to just under $3 a piece, but you can purchase them in bulk. They provide you with energy without surging you with calories or glucose so that you can fast for longer.

I recently ordered a large quantity of fastbars because I’ve ordered before and really like them. The ingredients are excellent quality, the taste is much better than similar items on the market, and the amount of calories is just right. I use them when I do a several day fasting mimicking fast as well as for snacks in general. Thanks for an excellent product.” is what one user wrote about the bars.


  • 4.1/5 stars based on more than 1,700 pieces of customer feedback on Trustpilot
  • Plant-based, keto, and gluten-free bars
  • Bars are designed to keep you in a fasted state

#8: SkinnyMint


My last pick for one of the best 5 day fasting programs is SkinnyMint, a weight management company that puts the power back in your hands. Their products are universally low-calorie so you can enjoy them as much as you please. 

From fat-burning gummies to detox teas to chewables that can help you push through tough cravings, SkinnyMint can arm you with the items you need to complete your five-day fast. They also make 28-day detox programs if you want to prolong the process and see miraculous results.

One shopper said, “Love the taste of all the products the gummies are yummy and the hot chocolate, green elixir and coffee oh wow just wow so amazing and all those healthy super ingredients that help with your digestion, help with weight loss and overall so great for your health and immune system I love it all.


  • 4.5/5 stars based on more than 65 pieces of customer feedback on Trustpilot
  • Low calorie line of gummies and teas
  • Preplanned detoxifying and cleansing bundles

How to Look For The Best Fasting Programs 

Now that you know the best 5 day fasting programs, it’s time for you to choose which one is best for you. Here are some factors to consider to narrow down your selection.


Looking into a brand’s history, reputation, and vision can help you identify whether or not they’ll align with your goals and ultimately be a help or a hindrance.


Some fasting programs can be costly when they’re not offering you anything you couldn’t do by yourself. Think about how much you’re willing to spend and find a program that meets your budget while still providing you with novel products.


The easiest diets are the ones you can stick to, which is why many of the best 5 day fasting programs include pre-made meals or mixes. The more convenient something is, the more likely you’ll be to adhere to it.


Fasting comes with a certain number of risks, so you should research how those negative health effects can affect you, then decide whether or not a fast is right for you.

Dietary Restrictions 

The best 5 day fasting programs should have products that you can use regardless of your dietary restrictions. Many of the programs I spoke about today are safe for vegans or those with food intolerances.

Additional Benefits

If a fasting program comes with additional benefits that attract you then why not give it a shot? These don’t have to be health benefits per se. They can be benefits including meal planning, free shipping, or guidance with a coach.

How Much Weight Would You Lose In A 5-Day Fast?  

Some people have lost as much as 1 to 2 pounds a day on their 5-day fast. However, it’s unclear whether or not they kept the weight off after the fast concluded. 

How Do I Prepare For A 5-Day Fast?  

You’ll want to drink plenty of water and eat many nutrient-rich foods before your fast begins. You won’t be ingesting many vitamins or minerals during your fast, so you want to get in as many as you can before you begin. 

What Will 5 Days Of Fasting Do To Your Body?  

A 5-day fast can provide you with health benefits like decreased cardiovascular risks, improved insulin resistance, lower blood pressure, and reduced weight.

What Should You Not Do During A Fast?  

You should not go for too long without drinking water as your body needs that hydration. Water can also help you feel full while you’re technically starving.

Additionally, you don’t want to go too long without doing something to engage your mind, as boredom can make the fast much hard. Boredom can cause your mind to wander onto food and cause increased internal resistance to the fast.

Final Thoughts

Throughout my life, I’ve tested and implemented every strategy in the book to lose weight. Intermittent fasting, macro fasting, fasting, caffeine-only diets, paleo, vegan, keto, weight loss sprints, and slow, gradual habit-rewiring diets; I’ve given them all a shot, not because I’m searching for the be-all-end-all diet, but because I like to experiment.

You should also enjoy experimenting. That’s how you’ll discover which diet works best for you to help you lose weight and keep it off. Nobody wants to lose 50 pounds only to put it back on in three weeks. As such, the best diets are the ones you can stick to. You don’t have to see diet as a one-and-done feature but more like a lifestyle change. An adaptation to healthier habits rather than a restriction.

That being said, sometimes you want to accelerate your results, in which case you may want to try out one of the best 5 day fasting programs rather than a longitudinal weight loss program. It could be for an upcoming vacation, a photoshoot, a wedding, or even a sporting event in which weight classes matter.

There’s nothing wrong with wanting fast results so long as you know what you’re willing to do (and potentially give up) to achieve those results. The programs I listed today can all make that decision and sacrifice easier, though it still requires work to get the job done.

Point being, even the best 5 day fasting programs require you to put in some effort. There are a few that require less effort than others with regard to planning (ProLon’s entire model is based around the 5-day fast whereas with others you’ll have to figure out what to eat and when by yourself) but with the right mindset and dedication, you can earn the results you’re hungry for.

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