Zinc is one hell of a mineral and its biological involvements literally span hundreds of metabolic activities. However, when it comes to supporting healthy levels of testosterone – perhaps even male health in general – there may not be any other mineral as vital as Zinc.
In fact, a lot of today’s premier testosterone boosting supplements use Zinc in their respective formulas; because of that, I think you, a potential buyer of T supplements, should understand the ins and outs of this masculine mineral and I’m here to help.
In this review article, you’ll see some of the best testosterone supplements in the market with Zinc in their formulas. Moreover, I will also show you several scientific research on this mineral’s benefits as well as a bit of my own opinions. So, are you ready? Let’s get to it.
To be honest, the supplements you see here are all part of my list of the best testosterone supplements this 2018. This, to me, speaks for the effectiveness and power of Zinc not just as a natural T booster but also as a great supplement for male health. However, not all the elite T supplements use Zinc. Nugenix Ultimate, for example, doesn’t have this mineral in its formula and that’s okay. There are other effective natural testosterone boosting ingredients anyway.
Having said that, the supplements you see here may not necessarily be to your liking. If so, you might want to check out my archive of reviews and guides. After all, I wrote all those to help you find the T booster that best suits you. And, you know what? They’re free, so why not, right?
WHY DO TEST BOOSTER SUPPLEMENTS USE Zinc?
Zinc is an essential trace element and it doesn’t take a lot to help maintain optimal health. In fact, the National Institutes of Health recommends only 11 mg and 8 mg of Zinc respectively for males and females. Moreover, it’s also rare to experience severe Zinc deficiency as most diets already have more than enough Zinc.
On the other hand, mild Zinc deficiency is quite common for the general population and interestingly, it happens mostly because of inadequate Zinc intake. As one study suggests, “25% of the world’s population is at risk of zinc deficiency” – and that’s a conservative estimate. That being said, Zinc is notably good for the immune system and lack of Zinc typically results in immune related symptoms.
However, since Zinc is “a component of more than 300 enzymes and an even greater number of other proteins” (as per a 2010 study), lack of this mineral also inevitably causes emasculating side effects such as low testosterone, erectile dysfunction, muscle weakness, and even low sex drive and infertility. Of course, adequate Zinc has just as much benefits.
This isn’t just me talking and making assumptions though. Zinc does indeed have a lot to do with male health, hormones, and overall virility – and I found studies and evidence to prove it! Check them out.
STUDIES ON Zinc SUGGEST:
Less sperm, testosterone, and testicular weight in Zinc deficiency
Let’s start with animal studies.
Back in 1976 – yeah, it’s old – a research was done to investigate the role of Zinc on gonadal function. Here, they evaluated the luteinizing hormone (LH), follicle-stimulating hormone (FSH), and testosterone of their “control” rats and their “experimental” zinc-deficient rats after intravenously administrating them with synthetic luteinizing-hormone-releasing hormone (LHRH).
- So, basically, they checked the hormonal profile of both rat groups after synthetically releasing LH – the hormone that triggers your testicles to produce more testosterone.
According to the results of the study, the zinc-deficient group had lesser testosterone after synthetic LHRH administration. In contrast, the non-zinc deficient group had a better testosterone response.
In a similar yet significantly more modern research (2015), rats were also used to examine the molecular mechanisms underlying the effects of zinc deficiency on spermatogenesis. Here, they noted a reduction of testicular volume (tinier testicles) and impaired sperm production along with lower levels of testosterone in zinc deficient rats.
Sure, Zinc deficiency is bad for rats but are these effects the same for human males?
To answer that question, here’s another research. In similar fashion to the two previous studies, this one assessed the effects of dietary zinc depletion on seminal volume and zinc loss, serum testosterone concentrations, and sperm morphology. However, this particular experiment was conducted on young human men.
The men who were a part of this research either had 1.4, 2.5, 3.4, 4.4, or 10.4 mg of Zinc per day. To summarize their results, the group who had the least amount of Zinc (1.4 mg Zn/d) had less semen and serum testosterone compared to the men receiving the highest dose of Zinc (10.4 mg Zn/d).
Improve performance and testosterone with Zinc supplementation (young and healthy)
Now that we’ve verified what Zinc deficiency does to several aspects of male health, it’s time to tackle the more optimistic side of Zinc.
This next research investigated how exhaustion exercise affects thyroid hormones and testosterone levels in elite athletes who are supplemented with oral zinc sulfate for 4 weeks. These athletes (licensed wrestlers) were also quite young with an average age of 18.7 (+/- 2.4) years old. Moreover, all of them took 3 mg/kg/day of Zinc Sulfate in addition to their normal diets.
Thyroid hormones and testosterone were measured as resting and exhaustion before and after zinc supplementation. Specifically when it comes to testosterone, the results of the research shows that:
- Before Zinc supplementation:
- Resting total testosterone and free testosterone levels were significantly higher than exhaustion levels
- After 4-week Zinc supplementation:
- Resting and exhaustion levels of total and free testosterone were found significantly higher than the levels measured before zinc supplementation
As you can see, testosterone levels dropped when the athletes were exhausted prior to Zinc supplementation. However, the results clearly show testosterone remaining significantly high even at the athletes’ point of exhaustion after they had supplemented on Zinc.
This tells me that Zinc can help prevent the drop in testosterone that typically happens after intense exercise. Furthermore, the researchers concluded that “zinc administration may benefit performance”.
Normalize testosterone, sperm, and libido in men with low Zinc and T
Before anything else, the previous study used athletes who were young and healthy. Being young and healthy, this group must also have high latent levels of testosterone. However, if the subjects were frail and had low T, would Zinc still be beneficial?
According to multiple studies, YES, Zinc is still quite the manly mineral.
For instance, a 2002 research on the effects of folic acid and zinc sulfate on male factor subfertility used subjects who were, well, subfertile. Apart from their reduced fertility, these particular group of men are also notorious for having low testosterone. According to the study’s results, these men experienced a 74% boost in normal sperm count after supplementing with 66 mg of Zinc Sulfate (and 5 mg Folic acid).
Moreover, the results of another research that used men who underwent haemodialysis (a patient demographic that the research itself identified as low on Zinc, testosterone, and libido) has shown that Zinc administration “strikingly” improved potency and plasma testosterone.
BE CAREFUL ABOUT TAKING TOO MUCH ZINC!
Although I showed you a study that garnered positive results when using 66 mg of Zinc Sulfate, I don’t generally recommend that you take this much. It’s not too high but, in my opinion, it’s dangerously close.
You see, there is such as thing as too much Zinc and its side effects are simply counterproductive. In fact, a journal has reported that zinc intake of greater than 100 mg/day as well as 10+ years of Zinc supplementation can amplify the risk of prostate troubles. To a milder degree, excessive Zinc can also cause vomiting, stomach pains, and diarrhea.
How Do I Take Zinc?
Honestly, this one’s a bit tricky as the studies I’ve showed you here use different doses. If we’re talking about extremes, one study showed positive results with just 10.4 mg of Zinc per day – a dosage that’s just a few points away from Zn’s RDA. On the other end, there were also positive results with 66 mg/day but like I said, I don’t generally recommend this.
That being said, I think a good (and safe) dose would be around 30 mg. This is the same dose used by some of the best testosterone boosters and it’s also not uncomfortably high.
When it comes to form, I suggest you look for high quality ones such as Citrate, Picolinate, Gluconate, and chelated Zinc. On that note, stay away from the cheap yet hard-to-absorb forms like Oxide and Sulfate.
Recap: Best Testosterone Supplements with Zinc
|T-Booster Supplement||My Review||Website|
|#1 – Prime Male||My Review||www.primemale.com|
|#2 – TestoFuel||My Review||www.testofuel.com|
|#3 – EVLtest||My Review||www.evlnutrition.com|
|#4 – Quantum T||My Review||www.mtheorysupplements.com|
|#5 – TestoSyn||My Review||www.xpisupplements.com|
In summary, Zinc is involved in hundreds upon hundreds of biological activities and lot of these are linked to male health. In effect, having enough of this manly mineral can also get you tons of positive benefits, including better sperm, libido, physical performance, and of course, testosterone.
More than that though, I think what makes Zinc such a good supplement is that it works for virtually everyone. Regardless if you’re young or old, rich or poor, healthy or sickly, athlete or not, Zinc has a myriad of benefits and chances are, you can experience them, too.