Fast Lean Pro Review

Full Review

Fast Lean Pro is a powerful dietary supplement designed to induce autophagy and support healthy weight loss, using natural and unique ingredients like polyamine, niacin, and chromium, that boost your metabolism and curb your appetite. Its scientifically-backed formula helps you shed excess pounds while maintaining lean muscle mass, allowing for the ultimate body transformation.

  • Creator: Fast Lean Pro
  • Contents: supplement
  • Price: $49 / $59 / $69
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Fast Lean Pro

Fast Lean Pro is a natural dietary supplement that is designed to boost your metabolism and curb your appetite to help you achieve a fitter, healthier you without the need for fasting. It’s packed with all-natural ingredients, like polyamine, niacin, chromium and vitamin B12, that fire up your metabolism, curb your appetite and activate autophagy for a safe and well-rounded approach to weight loss.

But that’s not all. Fast Lean Pro’s formula doesn't just help you shed pounds, it’s also designed to maintain lean muscle mass, giving you that slender, fit physique you’re after. The blend of natural ingredients also provide you with an extra boost of energy throughout the day to further enhance your workouts and ultimately, your results. So, if you’re ready to amplify your weight loss and workout efforts, this supplement can serve as your own personal trainer.

Intermittent fasting (IF) is a popular, natural weight loss approach that refers to eating patterns that cycle between periods of fasting and eating. It has been gained a lot of attention for the health benefits it offers. One key advantage is its link to stimulating autophagy, the body's cellular "clean-up" mechanism. By breaking down and recycling damaged cellular components, autophagy promotes cellular health and functionality. As such, intermittent fasting, through the activation of autophagy, may contribute to improved metabolic health, enhanced brain function, and reduced risk of chronic diseases. It offers a protective mechanism that supports overall health and longevity. However, receiving these results on your own can be difficult because you have to go through extended periods without eating, leading to feelings of hunger and deprivation. This shift can be mentally challenging, causing mood fluctuations and decreased energy. Social situations centered around food can also pose difficulties for those on IF, making adherence a test of willpower and lifestyle adjustment.

Now that’s where Fast Lean Pro is the answer to the problem.

So how does it work? It all comes down to the ingredients. The supplement contains ingredients that not only induces the body’s autophagy process. It also boosts your body’s metabolism, curb your appetite and provide many other health benefits, for a completely transformative experience.

Now to fully understand why and how this supplement works, let’s get a better understanding of the individual ingredients that make up the premium formula in the supplement.

The Ingredients

How It Works

Fast Lean Pro’s formula helps induce autophagy in the body so you can get the exact same health benefits as fasting, without having to do fast at all. And yes, that also means you can still have your favourite meals and beverages.

How it works? It all comes down to the ingredients. The supplement contains science-backed ingredients that not only induce the body’s autophagy process. It also boosts your body’s metabolism, curb your appetite and provide many other health benefits, for a completely transformative experience.

Now to fully understand why and how this supplement works, let’s get a better understanding of the individual ingredients that make up the premium formula in the supplement.

Outline of the Supplement


Fibersol-2 is a soluble corn fiber, often used as a dietary supplement and food additive. It functions as a digestion-resistant maltodextrin, allowing it to reach the large intestine and offer dietary fiber benefits. As such, it’s commonly added to foods and beverages to increase fiber content without affecting the taste or texture. However, Fibersol-2 also supports gut health by promoting regular bowel movements and aiding in the production of beneficial short-chain fatty acids in the colon.

Sukre (Purified Acacia Hydrolysate)

Acacia Hydrolysate, or gum Arabic, is a food additive that is a rich source of soluble dietary fiber. As such, it helps support digestive health, promote regular bowel movements and potentially aiding in cholesterol management. It also contains prebiotic properties, which promote the growth of beneficial gut bacteria, enhancing your overall gut health and digestion.

When it comes to weight loss, gum arabic's rich fiber content helps you feel fuller for longer, which can result in reduced calorie intake and ultimately, weight loss. This mechanism doesn't directly boost calorie burning but it can potentially lead to lower calorie consumption, which indirectly aids weight loss efforts.

Also, preliminary studies suggest gum arabic might possess hepatoprotective (liver-protecting) qualities, due to its antioxidant properties. In fact, some research indicates that in people with chronic liver diseases, gum arabic can have positive effects on ammonia metabolism, helping in reducing harmful ammonia levels in the blood, a critical concern in liver disease.

Biogenic Polyamine Complex

Biogenic polyamine complex is the highlight of this supplement. Spermidine, spermine, and putrescine are polyamines which are organic compounds found in various foods, such as soybeans, mushrooms, whole grains, and certain meats. These compounds are vital for several cellular processes, including cell growth, proliferation, and differentiation. As such, they play a crucial role in promoting longevity and cellular rejuvenation, and maintaining overall health.

One of the most significant health impacts of polyamines is their potential role in autophagy, a cellular "clean-up" process where cells break down and recycle damaged components. By enhancing autophagy, polyamines may help with the removal of damaged cells and the regeneration of newer, healthier ones, effectively supporting cell renewal. This process is crucial in combating aging and age-related diseases. Additionally, enhanced autophagy can lead to improved fat breakdown, as the process facilitates the degradation of stored fats in the body, potentially aiding in weight loss.


Niacin, commonly known as vitamin B3, is a crucial water-soluble vitamin vital for many bodily functions. It's involved in turning the food we eat into energy and is also essential for keeping our skin, brain, and nervous system healthy.

When it comes to fat metabolism and energy, think of niacin as a helper for our body's cells. It aids in breaking down fats, carbs, and proteins, ensuring our body can use them for energy. So, by assisting in these processes, niacin helps us feel energized and active. It's also known to be beneficial in managing cholesterol levels, which is another way it plays a role in handling fats in our body.


Chromium is an essential trace mineral that plays a significant role in various body processes. Chromium is especially important for macronutrient metabolism, ensuring that the body efficiently uses fats, proteins, and carbohydrates from the foods we consume.

One of its most recognized roles is in enhancing the function of insulin, a hormone critical for the metabolism and storage of carbohydrate, fat, and protein in the body. Chromium helps improve insulin sensitivity, ensuring that glucose is taken up by the cells more effectively. This not only aids in blood sugar regulation and reducing the risk of type 2 diabetes, but also ensures that cells receive the energy they require to function.

Also, emerging research suggests that chromium might support the autophagy process. By potentially influencing this cellular "housekeeping" process, chromium could contribute to cellular health and longevity.

Vitamin B12

Vitamin B12, also known as cobalamin, is an essential water-soluble vitamin with a crucial role in numerous physiological functions. It's vital for maintaining nerve health, aiding in the production of DNA and RNA, and working with other B vitamins to form red blood cells. It also helps with the functioning of iron in the body, and improving mood regulation among other functions.

When it comes to calorie burning, vitamin B12 plays a role in metabolizing proteins and fats, aiding in the conversion of carbohydrates into glucose, which the body uses for energy. By supporting efficient metabolic processes, B12 can indirectly aid in calorie burning by ensuring that nutrients are efficiently converted into energy.

On the other hand, a deficiency of vitamin B12 can lead to hyperpigmentation, nail discoloration, hair changes, and vitiligo. By ensuring proper B12 levels, you can support your overall cell production, including those that make up your skin, hair, and nails, and promote skin renewal and overall cellular health.

As you can see, the unique ingredients in Fast Lean Pro contains science-backed ingredients not only induce your body’s autophagy process, but also help boost your body’s metabolism; improve insulin sensitivity; improve your liver’s health; maintain your skin, hair, and nails, health; and so much more. It is perfectly formulated to rejuvenate and renew your cells – inside-out – for a youthful appearance and healthier, fitter you.

All you need to do is pour a scoop of Fast Lean Pro into your favourite beverage. It is recommended to mix it with tea or coffee for a more synergistic effect and an extra boost in its health benefits as tea and coffee are high in polyphenols. These can help improve the autophagy process and improve the bioavailability (absorption rate) of the supplement.


When you order 3 bottles or more, you’re entitled to the following bonus materials:

Advantages of Fast Lean Pro

Disadvantages of Fast Lean Pro

My Thoughts

Fast Lean Pro is a dietary supplement that supports you in your pursuit of a healthier, more toned physique without having to fast or restrict your diet. It’s designed with a powerful blend of natural ingredients that activate autophagy and boost your weight loss while also offering an abundance of additional health benefits for a complete transformation. And while shedding those pounds, the supplement also works to preserve lean muscle mass, increase your energy levels, regenerate cells, and so much more. So, to say it’s just a supplement is an understatement; Fast Lean Pro is a strategic health and weight loss tool that’s backed by scientific research that makes it easier to achieve your goals.

Yes, I Want My Jar!

Frequently Asked Questions

As this supplement is growing in popularity, there have been counterfeits and fake products popping up online. With these imitation products, there’s no guarantee that they are safe or abide to FDA’s standards.

To ensure your safety along with the effective formula, you should only get this supplement from the official website.
You can mix it with any beverage of your choice. However, it is recommended to mix it with coffee or tea as these drinks contain compounds that can boost and have synergistic effect with the supplement. And as mentioned, tea and coffee contains compounds that improve the supplement’s bioavailability.

In fact, coffee has high levels of chlorogenic acid and tea has good levels of EGCG. So, it’s recommended to take the supplement with both of these beverages on alternate days (i.e: tea on Monday, coffee on Tuesday, etc). Of course, this is optional and just a recommendation, you can stick to any of your preferred beverage.
It’s advised to only take this supplement once or twice a day. Taking more than what’s directed has no additional benefit. It may also increase the risk of unwanted side-effects.
The product is manufactured in a FDA-approved facility with GMP standards, meaning the product abides to FDA’s standards and safety limits, and is free of contaminants. Also, this product has been in the market for some time and if it isn’t safe it would have been recalled a long time ago.

However, as always, you should go through it with a doctor if you have any underlying health conditions or on medication. You can also use WebMD’s interaction checker to see if your medication may have nteractions with the supplement’s ingredients.
There is no additional discount or promo code provided for this supplement. Any website that claims to have one is probably fake. Make sure you stick with the official website to get the genuine product.
Check Out Fast Lean Pro (Official Website)

Reviewed By
Author Bio Photo

Reba is a licensed registered dietitian in private practice in Nashville, TN and has been the recipient of an Academy of Nutrition and Dietetics “Excellence in Practice” Award. In order to assist her clients with the process of transferring knowledge into action, Reba obtained a Master of Public Health degree with an emphasis in behavioral counseling.

She is an Adjunct Assistant Professor for the School of Nursing at Vanderbilt University.

She lives in Nashville with her husband, Kevin, and their two cats. Reba enjoys an active lifestyle that includes walking, zumba, and ballroom dancing.