Nature’s Secret 15-Day Weight Loss Cleanse & Flush

Nature’s Secret 15-Day Weight Loss Cleanse & Flush is a detox supplement that promises to kick-start weight loss and improve digestive issues caused by an unhealthy diet, presumably without having to bother with actually changing your diet! Let’s take a look and find out more.

Nature’s Secret is a US brand of supplements that comes under the better known Irwin Naturals company. Based in Santa Monica California, Nature’s Secret specialises in detox supplements which are available worldwide.

Nature’s Secret 15-Day Weight Loss Cleanse & Flush Pros

  • Will probably have the desired laxative effect for most people
  • Inexpensive

Nature’s Secret 15-Day Weight Loss Cleanse & Flush Cons

  • Side effects are likely to be an issue
  • Detoxifying by laxatives is not good for health or weight loss
  • Many of the better ingredients are in inadequate quantities
  • No money-back guarantee
  • Company has past form in selling dangerous supplements
Watchdog Rejected

Nature's Secret 15-Day Weight Loss Cleanse & Flush

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Nature’s Secret 15-Day Weight Loss Cleanse & Flush Overview

What You Need To Know About Nature’s Secret 15-Day Weight Loss Cleanse & Flush

Nature’s Secret 15-Day Weight Loss Cleanse & Flush is a cheap supplement that may cause increased urination and bowel movements, so customers looking for these effects may feel satisfied. However, doing this is not good for health and can lead to a long list of potential side effects.

If you are taking prescription medication you need to know that this supplement contains grapefruit extract which will cause interactions. Also, it may cause miscarriage so is not suitable if you are trying to conceive.

What Are The Side Effects Of Nature’s Secret 15-Day Weight Loss Cleanse & Flush?

Potential side effects may include diarrhoea, abdominal pain, stomach cramps, bloating, increase in urine output, nausea and vomiting, urine discoloration, and increased menstrual bleeding.

Some of the herbal ingredients, such as chickweed are known to cause allergic reactions such as hives and difficulty in breathing, so if this happens, you do need to seek medical advice immediately.

15 Weight Loss Cleanse & Flush contains Grapefruit powder, so you will need to avoid if you take prescription medication and have been told to avoid grapefruit. This supplement also contains Uva Ursi which can cause miscarriage so needs to be avoided if you are trying to conceive.

Taking this supplement could lead to dehydration. Symptoms of dehydration include thirst, dry mouth, fatigue, dizziness, heart palpitations, confusion, fainting, inability to sweat or urinate, weight loss, and fever.

How Much Does Nature’s Secret 15-Day Weight Loss Cleanse & Flush Cost?

Nature’s Secret 15-Day Weight Loss Cleanse & Flush is not expensive and because it is on sale from a range of outlets, you can shop around for price.

Buy direct from Nature’s Secret website and it costs $17.99 for a 15-day supply of 60 capsules.

It is also on sale via Amazon USA from various sellers where it costs between $12.99 and $23.94, and it is on sale from Lucky Vitamin for just $9. 71.

UK customers can buy via Amazon UK for £11.26, or from other sellers such as e-vitamins, eBay, or Vitamin Grocer.

Our Verdict On Nature’s Secret 15-Day Weight Loss Cleanse & Flush

We are not impressed with Nature’s Secret 15-Day Weight Loss Cleanse &Flush. This supplement could actually be dangerous for some users and side effects are highly likely. Despite the low cost, this supplement is not a good deal; it will not help you kick-start your weight loss or make you slimmer.

If you suffer from digestive issues, you could try changing your diet to include more fresh fruit, fibre, and vegetables, and ensure you drink plenty of water. If simple remedies like this fail, you should visit your doctor to ensure you don’t have an underlying medical problem.

What you should not do is to turn to unproven OTC supplements like this one. We would not take Nature’s Secret 15-Day Weight Loss Flush & Cleanse ourselves, so there is no way we would ever approve this supplement to the Watchdog readers.

We do not recommend Nature’s Secret 15-Day Weight Loss Cleanse & Flush to our readers.

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Nature’s Secret 15-Day Weight Loss Cleanse & Flush Key Features

Nature’s Secret 15 Day Weight Loss is a detox supplement that the advertising claims will improve a slow digestion caused by an unhealthy diet that lacks fibre and fresh fruit and vegetables. So if this is you, and you suffer from digestive issues, you might find that making changes to your diet will improve your health and weight loss and you won’t need to take a supplement at all!

That said people like detox supplements and this idea of inner cleansing, and although there is no good medical or health reason for it, it remains popular.

Nature’s Secret 15-Day Weight Loss Cleanse & Flush Facts

  • Each bottle contains 60 capsules (15-day supply)
  • Contains 19 ingredients
  • On sale in the USA, UK, and worldwide

The 15 Weight Loss Cleanse and Flush contains the usual blend of laxatives and diuretics seen in all detox supplements,  including Cascara Sagrada – a plant extract with a very similar function to Senna plus Dandelion extract and Uva Ursi which increases urination. There is also prune extract, some prebiotics, and fibre including oat fibre. Check out the ingredients tab and the side effects tab for more information.

There are a couple of additional health risks that need to be highlighted here. This supplement contains grapefruit extract, so will not be suitable if you are taking many types of prescription medication.

It also contains Uva Ursi which is known to cause menstrual bleeding and miscarriage, so you should not use this supplement if there is any chance you might be pregnant or if you are trying to conceive.

How to Take Nature’s Secret 15-Day Weight Loss Cleanse & Flush

  • Take 2 tablets twice daily with a full glass of water for 15 days
  • For best results drink 8 to 10 glasses of water daily.

Nature’s Secret is a US company based in Santa Monica California. The brand specialises in detox and cleansing products which are available worldwide. According to the about us information, the company is part of the better known Irwin Naturals described as

“Leading formulators of nutritional supplements with over one hundred unique products. Business growth opportunities span the continents, from South America to the Far East, from the Caribbean to the South Pacific, and much more.”

We covered an Irwin Naturals branded supplement called Green Tea Fat Burner in a previous Watchdog review.

Worryingly, we found that this harmless sounding supplement which was on sale at Costco had been found to be extremely high in undisclosed lead. This led to a lawsuit which appears to be still ongoing. Lawyers are looking for anyone who has suffered from liver damage as a result of taking this supplement. Source

Nature’s Secret 15-Day Weight Loss Cleanse & Flush Concerns:

  • High risk of side effects
  • Marketed as a way to lose weight but will not work as described
  • People may take this supplement because it is cheap but it could be dangerous

Natures Secret 15 Day Weight Loss Cleanse and Flush is on sale from a wide range of retail outlets around the world including stores in the UK, Nigeria, and Europe. It is on sale in the USA from some well-known outlets including Amazon and Lucky Vitamin.

You can also buy directly from Nature’s Secret website.

What Does Nature’s Secret 15-Day Weight Loss Cleanse & Flush Claim To Do?

According to the advertising,

Slow digestion is a common concern, especially given today’s diet that is often void of fresh fruits, raw vegetables and high-fiber foods. Poor assimilation of food can lead to gas, bloating and a feeling of low energy.

The product information proposes a solution to this problem,

Nature’s Secret® 15-Day Weight Loss Support Cleanse & Flush® supports healthy digestion and promotes cleansing of the digestive tract.

The ingredients in this formula can help to stimulate digestive function and may help give your abdomen a flatter appearance and reduce bloating.

Once your digestive system is cleansed, you will feel lighter, more energized and healthier.

The key features mentioned on the bottle are as follows:

  • Helps Kick Start a Weight Loss Program
  • Stimulates Digestion and Enhances Elimination
  • Flatter Abdomen and Less Bloating

Does Nature’s Secret 15-Day Weight Loss Cleanse & Flush Work?

It should increase bowel movements and urination while you are taking it, so yes, in that way this supplement will probably work. However, this is not an effective or safe method to lose weight and may cause numerous side effects.

The answer to a better digestion is actually provided in the advertising and is not to take this supplement but instead to improve your diet.

Adding more fresh fruit, vegetables, and fibre to your diet will improve digestive issues like constipation, as well as general health.  Drinking plenty of water also helps “flush” your system far more effectively than any supplement.

That said this supplement does contain some beneficial ingredients but these will work much better in natural form. Eating prunes or drinking prune juice is an easy and natural way to improve constipation; oats are good for heart and blood pressure as well as weight loss. Beetroot is also very good for health and blood pressure.

There is no sane reason to detox. Healthy people already have a built-in detoxifying system with their liver and kidneys, lungs, and skin. Taking laxatives and diuretics are more likely to cause adverse effects than any positive benefits.

What Are The Ingredients of Nature’s Secret 15-Day Weight Loss Cleanse & Flush?

Serving size is equal to 2 capsules.

  • Psyllium powder (200mg): Psyllium powder is derived from the husks of the Plantago Ovata seeds. It is well known as a bulk-forming laxative, meaning that the high fibre content physically swells and then stimulates the bowel by this presence of a bulky mass. Psyllium is one of the most used supplement ingredients in the USA, and is a component of well known OTC laxatives such as Fibercon and Fybogel. Serving sizes usually start at around 5g so serving size here is probably ineffective. Source
  • Uva Ursi extract 4:1(200mg): This natural plant extract is believed to be effective for urinary tract disorders and kidney infections. It is a diuretic (makes you pee) and it lacks evidence regarding long-term safety. May interact with medication and can cause gastrointestinal side effects. It can also induce labour and menstrual bleeding, so should not be used if you are pregnant or trying to conceive. Source
  • Cascara Sagrada bark (110mg): Natural extract that has a very strong laxative effect. It is classified as a stimulant laxative because it works by irritating the lining of the bowel, thus causing a bowel movement. It is very similar in effectiveness and risks to the better known Senna. All medical advice is to take for no longer than two weeks. Source
  • Proprietary Blend (102mg): Fennel powder (seed), Fructooligosaccharide (FOS), Marshmallow extract (4:1) (root), Cayenne powder (fruit), Bioperine Black Pepper extract. Fennel may help digestion, fruit sugars (Fructooligosaccharides) are known as prebiotics; marshmallow is known to help digestion. Cayenne powder is believed to help fat burning but lacks evidence.
  • Juniper berries (100mg): We all love juniper berries, especially when we enjoy them in gin because it is this popular spirit’s main constituent! Juniper berries have a diuretic effect and can also help improve digestive issues such as gas or stomach cramps.
  • Plum (prune) powder (90mg): Prunes are a well-known remedy for constipation. Eating prunes or drinking prune juice will help regularity, but consuming prunes is better for this purpose than taking in supplement form.
  • Grapefruit Powder (80mg): Grapefruit contains some powerful chemicals that can help reduce cholesterol levels as well as other health benefits because grapefruit is high in many types of antioxidants. However it does cause interactions with many prescription drugs and if you have been told to avoid grapefruit, you should not take this supplement.
  • Beet Powder (80mg): Beetroot is rich in a variety of nutritional goodies such as magnesium, iron, potassium, antioxidants, and vitamin C. However its most predominant quality is that beetroot is high in nitrates which convert to nitric oxide in the blood. This relaxes blood vessels so improves blood flow and reduce blood pressure levels.
  • Oat Fibre (80mg): Source of fibre which is good for health but here in very low quantities. A better choice would be to include more oats into your diet such as with porridge.
  • Chickweed powder (50mg): Chickweed is a common garden weed (stellaria media). It is edible but there is no strong evidence for any medical use. It is sometimes taken for constipation.
  • Dandelion powder (root) (50mg): Well known garden weed that may have numerous possibilities as a herbal supplement. However, its best-known function is as a diuretic and it has long been known to increase urination.
  • Echinacea angustifolia powder (herb) (40 mg): Many people take Echinacea as a home remedy for flu or colds, and it may have an antifungal function. It lacks evidence.
  • Ginger extract (4:1) (root) (40 mg): Well known culinary ingredient, ginger is also known as a remedy for nausea and vomiting.
  • Chamomile extract (4:1) (flower) (25 mg): Most people take chamomile for its soothing and sleep-inducing effects. It contains a compound called Apigenin which is known to reduce anxiety.
  • Fenugreek extract (4:1) (seed) (25 mg): Well known Indian spice that may have many health benefits. However, it can cause diarrhoea and bloating if too much is consumed. Although there is only 25mg contained in this supplement, it is condensed so will feel stronger.

Does Nature’s Secret 15-Day Weight Loss Cleanse & Flush Have Any Side Effects?

15-Day Weight Loss Cleanse & Flush contains a lot of ingredients (19 in total) and potential side effects are likely. These may include:

  • Diarrhoea
  • Abdominal pain
  • Stomach cramps
  • Bloating
  • Increase in urine output
  • Nausea and vomiting
  • Urine discoloration
  • Increased menstrual bleeding
  • Miscarriage
  • Allergic reaction
  • Interaction with prescription drugs

Taking this supplement could lead to dehydration. Symptoms of dehydration include:

  • Thirst
  • Dry mouth
  • Fatigue
  • Dizziness
  • Heart palpitations – such as sensation of pounding heart or rapid beat
  • Confusion
  • Fainting
  • Inability to sweat or urinate
  • Weight loss
  • Fever

Not suitable for individuals under 18. Avoid if you are pregnant, breast feeding or trying to conceive. Speak to your doctor or pharmacist if you are taking prescription medication. This supplement contains grapefruit extract which interacts with many prescription meds. Cease use if you experience side effects and seek medical advice if necessary.

Are There Any Customer Reviews For Nature’s Secret 15-Day Weight Loss Cleanse & Flush?

We found some customer reviews for this supplement via the various retail outlets, although not via Amazon where it is on sale but obviously not very popular.

Elsewhere there are a lot of negative comments (more than positive comments), so this supplement is obviously not working for many people.

Comments include:

The 15-day weight loss does wonders for me. I use to have a bowel movement once or twice a week. Now, I have a bowel movement at least two times a day. My craving for sweets are getting less and less. I don’t crave for sweets, if I do, I cannot eat a whole candy bar. I find that remarkable.

This product has made me extremely bloated, with a very upset stomach and I feel terrible. I eat fairly healthy, and exercise regularly. I thought this would be a good way to up the ante and make me feel even better. Now I’m just worried I may have messed up the balance of my stomach.

Some customers have experienced side effects with reduced bowel movements, such as this reviewer,

I have incorporated this product into my diet for several weeks. I have not seen any difference in my weight. It does give me gas and I find myself not having bm’s

The supplement is on sale via Amazon UK.  Comments from British users include,

These really, really helped me and made my severe ibs symptoms less painful. I didn’t lose weight. But didn’t gain any either. I wish i could take these daily to help my ibs constantly.


Did nothing for me.

Does Nature’s Secret 15-Day Weight Loss Cleanse & Flush Offer a Money-Back Guarantee?

There is no money back guarantee for Nature’s Secret 15-Day Weight Loss Cleanse & Flush.

Where Can I Buy Nature’s Secret 15-Day Weight Loss Cleanse & Flush?

You can buy Nature’s Secret 15-Day Weight Loss Cleanse & Flush via the official Nature’s Secret website. It is also on sale via Amazon and many online retailers such as Lucky Vitamin.

Outside the USA you can find Nature’s Secret supplements in many countries including India, Nigeria, across Europe, and the UK where it is on sale via Amazon.

How does Nature’s Secret 15-Day Weight Loss Cleanse & Flush compare to Phentaslim?

Criteria Nature’s Secret 15-Day Weight Loss Cleanse & Flush Comparison Phentaslim comparison
Clinically Proven Ingredients
Side Effect Free
Positive Customer Reviews
24/7 Support
Money-back Guarantee

The Diet Pills Watchdog does not recommend Nature’s Secret 15-Day Weight Loss Cleanse & Flush.

Nature's Secret 15-Day Weight Loss Cleanse & Flush

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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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