Supplement Ingredients You Definitely Should Avoid

Avoid these ingredients

Some supplements include ingredients that can be dangerous.  

As supplements gain increasing popularity to increase strength, size, cut fat, improve immunity or even recharge your brain, it is important to ensure you know what you are consuming.

Supplements are not regulated like food and drugs; therefore, it can open the floodgates to unscrupulous manufacturers who will load products with ingredients without much thought to the potential outcome.

Many people purely buy supplements based on the ‘look’ of the product.

They buy based on brand name and the claims, many of which are untested, proven or have any scientific evidence to suggest these claims can be fulfilled.

In fact, many products even hide the exact quantities of the listed ingredients behind what is known as a proprietary blend, a proprietary blend effectively allows a manufacturer to mask how much of each ingredient is present.

This means the big hitting and popular ingredients can be included with trace amounts pulling in sales all the while the whole product can mainly consist of a filler or bulking agent.

Not only will it not work, it is a huge waste of money.

However, in some cases a proprietary blend maybe a blessing.

Sure, you’ll be out of pocket and disappointed but if the product is mostly rice powder it is at least harmless.

We at Testosterone Junkie read through each and every ingredient of the products we test and review.

We wade through scientific studies and journals from reliable and scholarly studies – unlike the 2nd Gulf War we base our conclusions on real evidence and not Wikipedia or someone’s invalidated opinion based on nothing more than a hunch.

However, we have not reviewed every supplement on the market, yet.

So, for you, it is a good idea to have a basic understanding of the potentially dangerous ingredients that are awash in many supplement products out there.

Now, pretty much anything can be potentially dangerous in the wrong hands, you can drown yourself by drinking too much water for example and if you eat approximately 25lbs of chocolate it can be very toxic.

However, any decent and well researched product will not include anything that has the potential to be harmful.

It is these kind of brands or manufacturers who are in it for the long haul by offering a quality product and not just to make a quick buck on Amazon or eBay.

Many of these ingredients have differing names too.

So it can be hard to always keep a track of them, as a result we have included the more obscure names as well to try and cover all bases.

If you are ever in doubt just run a quick internet search.

A quick tip.

If you run an ingredient through a search engine and the first page of results are merely websites exclaiming the virtues of the ingredient, it is highly likely that it will not be an effective.

Most natural ingredients will have studies available either by universities, state run scientific resources or online libraries.

So let’s take a look at some of the ingredients that you should avoid:

These Ingredients could be harmful


Also known as: Aconiti tuber, aconitum, angustifolium, monkshood, radix aconti, wolfsbane

Reduces inflammation, joint pain, gout

But can cause, Nausea, vomiting, weakness, paralysis, breathing and heart problems and possibly even death


This can also be called Creosote bush, greasewood, larrea divaricata, larrea tridentata, larreastat

It is used for weight loss; improves inflammation; treats colds, infections, skin rashes, cancer

However, it can cause Kidney problems, liver damage, possibly death on the cards too.


You may find it called Coughwort, farfarae folium leaf, foalswort, tussilago farfara

It’s used to relieve cough, sore throat, laryngitis, bronchitis, asthma

Long term use could cause Liver damage, possible carcinogen


Further research will have it named Blackwort, bruisewort, slippery root, symphytum officinale

Another remedy for a cough, heavy menstrual periods, stomach problems, chest pain; treats cancer

Another potential cause of Liver damage, cancer, possibly death


Names include Teucrium chamaedrys, viscidum

Can reduce Weight; alleviates fever, arthritis, gout, stomach problems

But another that if harmful to the Liver, hepatitis, possibly death

Greater Celandine

You’d be correct if you know it as Celandine, chelidonium majus, chelidonii herba

Used because it Alleviates stomachache

But another that can cause Liver damage


Touted around as Ava pepper, kava kava, piper methysticum

But known to Reduce anxiety and improve insomnia

Liver damage is a concern, exacerbates Parkinson’s and depression, impairs driving, possibly death


Other names include Asthma weed, lobelia inflata, vomit wort, wild tobacco

Improves respiratory problems, aids smoking cessation

Has a nasty range of side effects such as Nausea, vomiting, diarrhea, tremors, rapid heartbeat, confusion, seizures, hypothermia, coma, possibly death


This can also be found under Oxilofrine, p-hydroxyephedrine, oxyephedrine, 4-HMP

Used for Weight loss, increases energy, improves athletic performance

But unfortunately it Causes heart rate and rhythm abnormalities, cardiac arrest; particularly risky when taken with other stimulants

Pennyroyal Oil

Research has led to it being known as Hedeoma pulegioides, mentha pulegium

Improves breathing problems, digestive disorders

Unwanted sides include Liver and kidney failure, nerve damage, convulsions, possibly death

Red Yeast Rice

Found under Monascus purpureus

Known to Lower LDL (“bad”) cholesterol, prevents heart disease

Kidney and muscle problems, liver problems, hair loss; can magnify effect of cholesterol-lowering statin drugs, increasing the risk of side effects

Usnic Acid

Nmes available such as Beard moss, tree moss, usnea

Another Weight loss and pain relief agent

Liver injury seems to be high


Availble under the guises of Johimbi, pausinystalia yohimbe, yohimbine, corynanthe johimbi

It has and is used to Treat low libido and erectile dysfunction, depression, obesity

It Raises blood pressure; causes rapid heart rate, headaches, seizures, liver and kidney problems, heart problems, panic attacks, possible death

Yohimbe is also banned in Australia, Canada, Germany, Austria and New Zealand.

All sage countries with concern for their people.

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