Astral Nutrition Overpwr

Astral Nutrition Overpwr

3 out of 5
Astral Nutrition Overpwr

The main ingredient in Astral Nutrition Overpwr is glucomannan, which has genuine scientific approval as an appetite suppressant. A daily dose of 3000mg is required for glucomannan to work its magic though, and there is only 1500mg per daily serving here. You could of course double up on the amount you take daily so you hit that total, but that will quickly add up to become an expensive endeavour.

  • Effectiveness
  • Safety
  • Price / Guarantee


  • Easy to take
  • Contains Glucomannan which can help with weight loss
  • Contains no stimulants


  • Levels of Glucomannan are low
  • Expensive if the full dose is taken
  • Money-back guarantee is not really a full refund
Astral Nutrition Overpwr is a weight loss supplement that suppresses the appetite and promotes feelings of fullness. It is stimulant free, meaning it can be taken at any time of the day. Overpwr contains Glucomannan as the principle ingredient and at first glance, it looks pretty good, but is this UK weight loss aid as good as it first appears?

We take an in-depth look at Astral Nutrition Overpwr, to see if it really could help you to lose weight and to decide if it is safe to take.

Astral Nutrition Overpwr Overview

What you need to know about Astral Nutrition Overpwr

Astral Nutrition Overpwr is an appetite suppressant that uses Glucomannan as the main ingredient, alongside numerous B vitamins as well as Chromium.

It comes from the relatively new British supplements company, Astral Nutrition, who are based in the North of England and who manufacture a range of products that all target weight loss and body-building.

What are the side effects of Astral Nutrition Overpwr?

Glucomannan works by absorbing water in the stomach, making it really important to drink plenty of water when taking the product otherwise you could experience constipation and stomach cramps. As glucomannan is a fibre, it is likely that its usage will increase the rate of bowel movements. Diarrhoea may also occur. Glucomannan also affects blood sugar levels. Diabetics should consult their doctor before taking any glucomannan-based product.

How much does Astral Nutrition Overpwr cost?

Overpwr is reasonably expensive. It costs £29.99 for one bottle of 60 capsules, which could last as little as 20 days if the full dose is taken. It works out a lot better if only 1 capsule per day is taken and will then last for 60 days, however the effects will be particularly minimal at that dosage.

It is also available on the official website at a reduced price for multiple bottles or with another of their products, Thermaxin, for £49.99.

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Astral Nutrition Overpwr Key Features

Astral Nutrition Overpwr is a weight loss supplement based on Glucomannan. This is a natural absorbent fibre derived from a plant extract called the Konjac root. Glucomannan absorbs water, making it form into a gel. When you ingest this substance, it expands in the stomach like a sponge and this causes you to feel fuller and satisfied for longer. According to research, glucomannan helps maintain normal blood sugar levels, manages cholesterol, and has other medical benefits too.

Astral Nutrition Overpwr Key Points

  • Each bottle contains 60 capsules
  • Made in the UK
  • Comes with a money-back guarantee

It does not cause jittery side effects that are often associated with weight loss products that are stimulant-based, and this also means that it can be taken at any time of the day.

How to Take Astral Nutrition Overpwr

  • Use Overpwr as and when hunger strikes. Take one to three pills (depending on hunger intensity) with 450ml of water when you experience unwanted hunger cravings. Ensure you consume the correct amount of water with the serving, otherwise it may not be effective.

Glucomannan is one of the few substances that the European Food Standards Agency (EFSA) has recognised as effective for weight loss support, so it does come with some evidence that it works.

The product also contains multiple B vitamins and chromium for added support. Check out the ingredients tab to find out more.

Astral Nutrition Overpwr Concerns:

  • Contains inadequate amounts of Glucomannan
  • Expensive and may not work as described

The product is manufactured by Astral Nutrition, a company based in the UK who claim to give their customers the tools to push past their limitations. The company offer both weight loss and weight gain supplements, in the form of fat burners, appetite suppressants, and shakes.

Astral Nutrition does offer a money-back guarantee, however it does come at a cost with you losing out on shipping costs both ways, as well as a £6 admin fee for processing your return.

What does Astral Nutrition Overpwr claim to do?

Astral Nutrition Overpwr claims to help you to lose weight by suppressing the appetite; promoting a feeling of fullness, countering hunger and reducing fatigue. It claims to work in 5-10 minutes.

Does Astral Nutrition Overpwr work?

We think it is unlikely that Overpwr will work as described as it simply does not provide you with enough Glucomannan to work effectively. All of the clinical evidence has been based on a daily serving size of glucomannan of 3000mg a day, but this supplement only provides 1500mg at the maximum dosage so it looks pretty ineffective.

It certainly cannot meet the claims of reducing fatigue as there is nothing in this product to help with this.

phentatrim bottle
The most popular appetite suppressant in 2019 is Phentatrim.

Its ingredients are scientifically proven to aid weight loss and you are covered by a full 60-day money-back guarantee from a trusted company, making Phentatrim a very popular choice in the diet world.

Phentatrim is the best thing to hit the supplement market in a long time, with thousands of customers already seeing the benefits. That’s why it's our editor's top pick.

Read the Watchdog Phentatrim review here.

Astral Nutrition Overpwr Ingredients

  • Glucomannan Konjac 500mg: Natural dietary fibre made from the root of the Konjac root which grows naturally in Asia. The root is often used as a dietary thickener in the food industry, but these days is becoming well known as a weight loss aid. The fibre has a prebiotic effect in that it feeds the good bacteria in the intestine and so can be beneficial for health including cardiovascular health, gut health, and stress. Glucomannan is often used as a remedy for constipation, typical in people with a low fibre diet. It is a bulk-forming laxative, which means that it causes the bowels to open because of the fibre content unlike laxatives such as Senna that irritate the gut lining. It is also useful for diabetics “because it delays the stomach’s natural emptying process, which leads to more gradual sugar absorption and lowers blood sugar levels after meals. Effective serving size is 3000mg a day. Source
  • Vitamin B1 10mg: Also called Thiamine. Vitamin B1 is found in many foods including yeast, cereal grains, beans, nuts, and meat. It is required by our bodies to properly use carbohydrates.
  • Vitamin B2 10mg: Also known as Riboflavin. It is involved in many processes in the body and is necessary for normal cell growth and function. It can be found in certain foods such as milk, meat, eggs, nuts, enriched flour, and green vegetables.
  • Vitamin B3 10mg: A vital vitamin that is necessary for every cell in your body and plays a role in regulating metabolism. B3 deficiency slows the metabolism. Too much vitamin B3 can cause common side effects such as skin flushing and skin irritation.
  • Vitamin B5 10mg: Also known as Pantothenic acid. It is widely found in both plants and animals including meat, vegetables, cereal grains, legumes, eggs, and milk.
  • Vitamin B6 5mg: Has several important functions in the body, including allowing the body to use and store energy from protein and carbohydrates in food. Whilst taking excess amounts of vitamin B6 will not infinitely improve this ability, a deficiency could make it more difficult to lose weight. Source
  • Vitamin B12 125mcg: Naturally present in many foods. It has several roles, including aiding in releasing energy from consumed food and keeping the nervous system healthy. It may be that a deficiency hinders weight loss, but taking excess amounts could be potentially harmful. Source
  • Chromium 100mcg: Chromium is a trace mineral that may help the body regulate blood sugar. A usual serving size is between 50mcg and 200mcg.

Astral Nutrition Overpwr Side Effects

The principle ingredient glucomannan is generally safe, but can cause some mild side effects of consuming fibre such as:

  • Diarrhoea
  • Gas
  • Bloating
  • Abdominal discomfort

It is important to take glucomannan with plenty of water, so that it can expand safely in the stomach where it does not cause any type of blockage.


Do not use if pregnant or breastfeeding. Not for use by persons under the age of 18.

Astral Nutrition Overpwr Customer Feedback

There are some reviews on Amazon, the majority of which are very positive. However, from analysing the reviews on review checking website Fakespot, it does appear that many of them may not be genuine.

An example of a positive review includes:

this really works for me as have tried many different products before that have filled me out but i wanted an appetite suppressant to stop me picking at food and this works better than the other products

Negative reviews mostly say that the product has done nothing at all:

Speedy delivery. Product not effective at all with me! Very disappointing

Astral Nutrition Overpwr Money-Back Guarantee

Yes, Astral Nutrition does offer a money-back guarantee. However, they do not refund your shipping costs for the delivery or the return (even if you got free shipping!) and they also take an ‘admin fee’ of £6 so you will still be losing out on quite a bit of your money even if the product does not work for you.

They say:

Your refund will be the total amount paid, minus the cost of shipping and minus a small handling admin fee of £6. If you received free shipping on your order, our incurred shipping cost will still be deducted from the final value. We will not be able to reimburse the cost of returning the products.

Where To Buy Astral Nutrition Overpwr

You can buy it from Amazon for £29.99 for 60 capsules. It is also available on the official website at the same cost, as well as at a reduced price for multiple bottles or with another of their products, Thermaxin, for £49.99.

Watchdog Verdict

Astral Nutrition Overpwr is a British made supplement that contains Glucomannan as the principle ingredient. However, even with the maximum dose of 3 capsules, you are only getting half of the recommended quantity you need per day, so we cannot see this supplement having much of an effect on weight loss.

Glucomannan has been approved by EFSA, but in many cases, clinical testing has been carried out over months rather than weeks using double times the amount of Glucomannan as is present here.

We do like Glucomannan as a weight loss aid; it can work for those who are sticking to a healthy diet, and it can have a beneficial effect on blood sugar and cholesterol levels.

However, we feel that there are much better choices than Astral Nutrition Overpwr because the levels of the key ingredient are just too low. Due to this, we do not recommend Astral Nutrition Overpwr to our readers.

How does Astral Nutrition Overpwr compare to Phentatrim?

Criteria Astral Nutrition Overpwr Comparison Phentatrim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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