Updated: 01/13/2018

Novadex Review - 5 Things You Need to Know


I did two things this week. I obsessed over every aspect of Novadex. Then I wrote this review about it. We at DietSpotlight really dug deep and conducted a thorough investigation, focusing on the ingredients, side effects, clinical research and level of customer care. Plus we read all sorts of user comments from around the web. Finally, we summarized and compacted all of the data we collected to give you the facts you need.

Novadex Readers: Click here to find out why we're giving away samples of our product, Boost.

What is Novadex XT?

To start with, Novadex is an over-the-counter supplement for men. It’s claimed to boost libido, reduce body fat, increase natural testosterone, lower estradiol levels, and improve endurance and muscle strength. The ingredients include 6, 17 keto-etiocholeva-3-ol tetrahydropyranol, 3, 17 keto-etiochol-triene and 3′, 5 7-trihydroxy-4′-methoxyflavanone. You simply take 2-4 capsules each night. This formula is mainly marketed at bodybuilders.

We are not sure when Novadex was first released. However, this testosterone supplement is made by Gaspari Nutrition, which is located in Lakewood, NJ. This product is sold online and is easy to use/take anywhere, but read on…

FDA Warning – “Concerned Yet?”

The first concern we have is the FDA warning. “It appears that Gaspari Nutrition Novadex XT was recalled back in October of 2010. This is according to an FDA press release. There is a warning that this testosterone supplement can cause adverse effects and health problems,” revealed our Research Editor.

One customer stated, “Makes me irritated and aggressive. Not what I wanted.”

However, a different user said, “Been using Novadex for about four weeks. Have seen some benefits.”

Another commented, “Noticed some gains with this. Will continue to take it.”

Side Effects – “Watch Out”

Another issue is Novadex xt side effects. Some users have reported aggressiveness, irritability, changes in libido and even kidney problems. For example, one person stated, “Can’t deal with the adverse effects of this testosterone booster. Not taking it anymore.”

On the other hand, a different customer posted, “It’s alright. Definitely not as good as the prescription stuff.”

“First off, I have seen some results. However, this is not the potency I am after,” said another.

Our research has shown if there is some particular part of a testosterone booster or fitness supplement that is especially troublesome (FDA warning, side effects, user complaints) the odds of real results for the long term are not good. So, if Novadex does in fact cause unwanted adverse reactions in a lot of people, this could be a serious problem.

The Science – “Solid?”

To begin, there are some clinical studies mentioned for Novadex. On the other hand, there are no study results presented to support this testosterone supplement. At DietSpotlight, we like to see some documented science that backs up the product’s marketing claims, or else we only see a big red flag.

The Bottom Line – Does Novadex Work?

So, should you spend your hard-earned cash on Novadex? Well, we appreciate that this testosterone supplement was easy to purchase online. It’s also nice to see that you can use/take this product anywhere. However, we have some doubts about this formula since there is no clinical research presented to support the claims. Also, we’re certainly leery of the FDA warning and side effects linked to this product.

If you really want to improve physical performance, boost testosterone levels and build lean muscle mass, then we recommend you go with a product that’s supported by documented clinical research, does not cause any side effects and is not tainted by an FDA warning or recall.

Among the best products we’ve seen this year is one called Pronabolin. This formula offers nine key ingredients. Some of which are shown to help increase natural testosterone levels, boost vitality and improve overall muscle strength. We have not discovered any user complaints at all, and customer feedback on the web shows people are seeing real results.

The makers of Pronabolin are so excited about their product they’re offering every customer a 120-day money-back guarantee and multiple-bottle discounts.

Learn More About Boost »
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Previous Novadex Review (Updated June 5, 2013):

Novedex XT Reviews

Novadex, or Novedex, is a testosterone booster from Gaspari Nutrition. The supplement no longer appears on the official website, but it is still available from third-party vitamin companies. Novadex is an aromatase inhibitor. This simply means it inhibits estrogen so testosterone levels rise. Unlike so many other testosterone boosters, Gaspari Nutrition chooses ingredients with at least some clinical backing, though only in animal testing. Products can typically be ordered directly from Gaspari Nutrition, but that is not the case with Novadex. Bodybuilders need to order this product from another supplement company. We found no testimonials for Novadex. Before ordering, consumers need to ask about the expiration date on the supplement. If Gaspari Nutrition no longer lists the product, other websites could be selling out of old stock.

List of Ingredients

6, 17 Keto-Etiocholeva-3-Ol Tetrahydropyranol; 3, 17 Keto-Etiochol-Triene and 3', 5 7-Trihydroxy-4'-Methoxyflavanone.

Product Features

The ingredient list for Novadex is more complicated than it needs to be. 6, 17 Keto-Etiocholeva-3-Ol Tetrahydropyranol is 3-OHAT. This ingredient is in the same family as 6-OXO, a common aromatase inhibitor. While we could find no clinical studies referenced to supporting anti-estrogen claims, Gaspari Nutrition filed a patent application for the ingredient. 3, 17 Keto-Etiochol-Triene is recognized as ATD in the bodybuilding circle. There are clinical studies for ATD, but all involve animal studies. No human studies have been completed to confirm the same results in the human body. Despite the lack of human testing, bodybuilders trust ATD and Gaspari Nutrition has filed a patent application for this ingredient as well. 3', 5 7-Trihydroxy-4'-Methoxyflavanone is a flavonoid known as Hesperidin. Hesperidin has antioxidant and anti-inflammatory benefits, but we are not sure why it is included in a testosterone booster or estrogen blocker. It could be linked to the increase in free radicals during bodybuilding. Antioxidants fight free radicals. The Novadex formula will not help a dieter eat less, move more or lose weight. The formula is dedicated to boosting testosterone or blocking estrogen. If the formula works as claimed, a female dieter taking this supplement could suffer from amenorrhea and increased body hair, common symptoms of too much testosterone.


  • Ingredients listed online.
  • One ingredient is proven to block estrogen in animals.


  • The product is no longer for sale from Gaspari Nutrition.
  • Product could be short-dated or out of date.
  • Will not improve weight loss or fat loss.


Bodybuilders take supplements for the opposite reason dieters take supplements. Bodybuilders want to gain and dieters want to lose. Novadex aims to increase testosterone and decrease estrogen, creating the optimal environment for muscle building. There is some evidence the supplement will achieve that goal, but Gaspari Nutrition seems to have discontinued the supplement.
Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

3 Novadex Reviews

  • Question about proper dosage

    How much does a person take .. I have 22 pills that say 20 on them

    • Karen (Editor)

      Hi, Leander. Ordinarily diet products are taken twice daily. Be sure to go over the specific directions of the product, and also consult your doctor. Also, take a glance at Dietspotlight Burn. Multiple clinical studies prove it to boost energy, jump-start the metabolism, and increase fat loss!

  • Recommend With other Product

    Would you recommend novadex extreme with maca as a natural testosterone supplement? Can’t find any info regarding this product online, just took what was recommended at the protein shoppe.