Refer a Friend and Earn Offers! - Beli Prenatals are HSA/FSA eligible!

L-Carnitine and Male Fertility

Today’s post is in collaboration with Kat Gal, a holistic health writer.

Low sperm count has been an increasing problem in the United States and around the globe. Environmental toxicity, endocrine disruptors, chemicals, smoking, recreational drugs, and certain medications are to blame for many of these problems. 

Reducing your exposure to chemicals and environmental toxins may certainly help, but eliminating toxins from your life entirely is near impossible. What if you could improve male fertility with the help of a simple nutrient? We recommend L-carnitine for male fertility.

L-carnitine is a nutrient that plays a significant role in mitochondrial function, energy production, and disease prevention. Research has shown that L-carnitine may also help to improve sperm count, sperm motility, and sperm quality. Today, we want to discuss the benefits of L-carnitine for male fertility. Let’s get into it.

What Is L-Carnitine?

L-carnitine is a nutrient that plays a critical role in energy production in your body. It is the standard biologically active form of carnitine you can find in many foods and supplements. L-carnitine helps to move fatty acids into your mitochondrial cells. Your mitochondria then will burn them to make energy for all kinds of bodily functions (1, 2, 3).

L-carnitine is found in your skeletal muscle, heart, kidneys, liver, brain, and male sperm cells. Your body can create L-carnitine out of certain amino acids, such as lysine and methionine. This cannot happen without vitamin C, though. Healthy vitamin C levels are essential for your body to produce sufficient amounts of L-carnitine. 

You may also improve your L-carnitine levels by eating certain animal products, including fish and meat. Thus vegetarians and vegans may have difficulty meeting their needs without L-carnitine (4, 5, 6). Fortunately, through supplementations, you can optimize your L-carnitine levels.

Role and Benefits of L-Carnitine 

Before we get into the benefits of L-carnitine for male fertility, let’s discuss the role and benefits of L-carnitine for your overall health. The main role of L-carnitine is to improve mitochondrial function and energy production. According to a 2007 study published in The Journal of Physiology, L-carnitine may help to improve fuel metabolism in skeletal muscle (7). According to a 2011 study published in The Journal of Physiology, it may support fat burning and exercise performance (8).

By supporting mitochondrial health, L-carnitine may also play a role in healthy aging and the prevention of disease (9, 10, 11). According to a 2004 review published in the Annals of New York Academy of Sciences, L-carnitine may be beneficial for your heart health (12, 13, 14). According to a 2001 study published in Blood Purification and a 2013 research published in Frontiers in Physiology, it may help to improve the production of red blood cells (15, 16). It may also help to improve blood flow, stamina, and exercise recovery (17, 18).

According to several studies, including a 2011 study published in Amino Acids, L-carnitine may help to reduce insulin resistance and improve insulin sensitivity (19, 20, 21). According to a 2017 study published in Neurochemical Research, L-carnitine may have neuroprotective benefits (22). 

One of the most exciting and lesser-known benefits of L-carnitine is for make fertility. L-carnitine supports sperm count, quality, and motility.

L-Carnitine for Male Fertility 

The benefits of L-carnitine for male fertility are not surprising since L-carnitine is naturally found in human sperm and seminal fluid. L-carnitine may help to support sperm maturation, improve sperm motility, boost low sperm count, and protect your spermatozoa from oxidative damage.

Increasing Low Sperm Count

Normal sperm count is at least 20 million per milliliter (m/ML), and normal sperm motility is 60% to 80% actively moving (23). These are both important factors when it comes to male fertility. Low sperm count, poor sperm quality, and weakly swimming sperm can all contribute to male infertility.

Sperm counts have been steadily decreasing in the US, contributing to increasing male infertility (24, 25). A 2004 review published in the Revista do Hospitals das Clinicas has found that endocrine disruptors, smoking, alcohol use, recreational drugs, certain medications, chemical exposure, and other environmental toxins may all contribute to impaired sperm production, poor sperm function, and infertility (26).

Human semen quality is a growing problem. Infertility affects 12 to 15% of sexually active couples who are trying to conceive (27). According to a 2012 study published in BMJ Open, only 23% of the 4,867 participants had healthy sperm concentration and morphology (28).

Research has shown that L-Carnitine may help to improve low sperm count and other aspects of male fertility. According to scientific studies, L-carnitine may help to improve all sperm parameters and various aspects of male fertility, including sperm count, sperm motility, sperm maturation, sperm metabolism, sperm structure, and quality of semen. In the next section, we will discuss how L-carnitine may help to improve various parameters of sperm health.

L-Carnitine for Male Fertility, Sperm Count, Sperm Motility, and Sperm Structure

Based on current data, health practitioners in functional and holistic medicine may recommend L-carnitine. For example, Dr. Huberman mentioned the benefits of L-carnitine for fertility in his Huberman Lab Podcast episode 11 here. In this episode, he stated that L-carnitine “increase[s] sperm quality, sperm motility in males” (29). Though Dr. Huberman didn’t mention the studies he is referencing, we’ve done our own research and found plenty of studies that support the benefits of L-carnitine for sperm count, sperm motility, sperm structure, and other aspects of sperm health and male fertility.

L-carnitine may reduce the risk of male infertility and support men with low sperm count. Research has linked low carnitine levels to decreased sperm count and poor sperm motility (30, 31). Let’s look at what science says about the potential benefits of L-carnitine for fertility.

A 2004 study published in Reproductive BioMedicine Online has found that L-carnitine may play a major role in sperm metabolism, maturation, and motility (32). They found that at least 3 grams a day may improve sperm count and sperm concentration.

A 2010 randomized controlled trial published in the National Journal of Andrology has found that 2 grams of L carnitine per day helped to improve sperm motility and the chance of pregnancy in participants after only 3 months of treatment (33). A 2011 study published in the Journal of Pakistan Medical Association has also found that L-carnitine may help to maintain male fertility (30).

A 2012 study published in the Iranian Journal of Reproductive Medicine has also found that L-carnitine may help to improve sperm motility and chromatin structure (34). A 2016 review published in Andrology has found that L-carnitine may help to improve total sperm motility, progressive sperm motility, and quality of semen (35). Researchers found that L-carnitine may help to reduce cellular damage, and supplementation may help to improve all male fertility. 

A 2021 study published in the Urology Journal has found that L-carnitine and coenzyme Q10 may help to improve sperm motility, reduce free radical damage, and improve sperm DNA and chromatin structure in men with reduced sperm count (31). Research is ongoing, and based on what we know, L-carnitine for male fertility may have a lot of promise. 

Recommendation to Improve Male Fertility with L-Carnitine

We recommend Beli Men Vitality Multivitamin to improve your L-carnitine levels and support male fertility. Beli Men Vitality Multivitamin has 100 grams of L-carnitine in one serving to help improve sperm health and male fertility, including sperm count, sperm motility, sperm maturation, sperm metabolism, sperm structure, quality of semen, male fertility, and the chance of pregnancy.

This is a soy-free, gluten-free, allergen-free, keto-friendly, vegan-friendly, non-GMO supplement designed to increase sperm count, support sperm quality, improve egg penetration, support cellular health, boost energy, and improve male fertility. 

Beli Men Vitality Multivitamin supplement offers 100 mg of L-carnitine in one serving. Beyond L-carnitine, this multivitamin is loaded with other vitamins, minerals, and nutrients that support male fertility and male health, including zinc, selenium, vitamin C, D, and E, folate, vitamin B6, L-arginine, N-acetyl-cysteine, coenzyme Q10, taurine, and shilajit. 

Try L-carnitine for male fertility, increased sperm count, improved sperm motility, and better sperm quality. Fuel your body with Beli Men Vitality Multivitamin to increase sperm count and sperm quality.

Additional Resources

When the plan is a baby, but you’re having a hard time conceiving, it’s normal to start wondering why. While there can be a number of issues in play, one tends to be overlooked: sleep quality. Specifically, men who have the sleep disorder sleep apnea could be at greater risk of fertility issues. Now, new research is drawing a more definitive link between sleep apnea and male fertility. Let’s review.

Read More

Fact: You can’t look at a guy—or eyeball his semen sample, for that matter—and determine his fertility. It just doesn’t work that way. The only way to truly assess sperm health is with a semen analysis. But there are a few lifestyle choices and truths that may indicate whether a man’s sperm is healthy and happy. 

Read More

While it’s lumped into the “bodily fluid” category, semen is a complex cocktail of compounds designed to support fertility. Like sperm quality, semen health can be influenced by lifestyle factors—an important realization for couples trying to conceive. From color to consistency, here’s what healthy semen looks like.

Read More

There’s a lot of chatter when it comes to male masturbation and what it says about a man’s fertility or whether it’s an issue when a couple is actively trying to conceive. And in the interest of clearing up the confusion, we’re taking a facts-based approach to the topic of men, masturbation and fertility.

Read More

For many of us, our twenties and even thirties are a time when the focus is on pregnancy prevention. And that’s okay! But even when the idea of motherhood is miles away there is tremendous value in understanding your fertility health and what you can do to support it during these young, carefree days.

Read More

Raise your hand if you already know that you have a biological clock. From age 35 and beyond, there is a natural decline in testosterone and sperm quality. Just as people lose muscle strength, flexibility and endurance with age, sperm also tend to lose their "fitness" over the life cycle. But what does that mean—and does it really matter?

Read More

It’s an easy assumption, but you’re much better off thinking that every prenatal vitamin is wildly different in terms of composition, nutrient quality and, importantly, nutrient amount. Not only is that actually true, it puts you in the smart consumer mindset of understanding what matters in a prenatal vitamin—and why.

Read More

Men really do benefit from specialized nutrition in the form of a prenatal vitamin that’s formulated to support sperm health. Here’s what that looks like, and how specific nutrients can impact a man’s fertility health before fatherhood.

Read More

Shilajit is finally getting the credit it’s due, and we’re proud to point out that our proprietary formula was the very first to include this powerful Ayurvedic compound. Here’s why shilajit is rapidly becoming the darling of the male fertility world–and what you’re missing if you’re skipping it.

Read More

Ever wondered why men produce so much darn sperm, especially if only one of them will ultimately fertilize the egg? There are millions of sperm in normal ejaculate because it increases the likelihood that one will reach the egg and seal the deal. It begs the question, what exactly happens on the journey to the egg?

Read More

Just as women’s bodies need to be prepared for pregnancy, men’s bodies need to be ready to contribute healthy sperm for conception. Nutrients are the foundation that support the normal structure and function of sperm and men's fertility health. Taking Beli’s male prenatal supplement is a proactive way to strategically fuel your body to optimize fertility contributing to your overall chances of conceiving and supporting a healthy pregnancy.  

Read More

Diet has been suggested to have an influence on the quality and function of human sperm. More specifically, the results of a randomised trial have shown that including nuts as a component of a regular diet improved the quality and function of human sperm.

Read More

A shot to the balls may be played for laughs on screen, but testicular impacts really aren’t a joke. Worse case scenario, getting hit in the balls can affect fertility thanks to complications like sexual dysfunction, low testosterone and other issues. Let's discuss.

Read More

With the New Year upon us, there are all kinds of articles and videos making the rounds with predictions of the Zodiac signs most likely to get pregnant in 2024. But here at Beli, we take a much more scientific approach to conception. Here are the top eight things people will do to get pregnant in 2024.

Read More

Research shows that the overall health of both biological parents during the preconception window plays a huge role in everything from conception to pregnancy health to the lifetime health of their baby. Luckily, there are simple steps you can both take to improve your health together.

Read More

When it comes to becoming parents, good habits really will take you where you want to go. Now, new science is giving us insight into exactly how long it takes to form those good habits. We're breaking down all the ways you can build healthy habits to boost your chances of conception. Think of it as life-hacking, but for grown-ups.

Read More

Here at Beli, we’re working hard to raise awareness of the important role men play in the baby-making equation, which brings us to today’s topic of men’s preconception health and specifically, sperm health. Knowing what you’re working with can save you a lot of time, but is at-home sperm testing considered an important part of men’s preconception health? Let’s break it down.

Read More

There’s a certain magic to the holiday season, whether you’re all-in on the decorations and the family time or a self-proclaimed Scrooge from mid-November to the New Year. But when you’re trying to conceive, it can be a challenging time.  We’re sharing five tips for managing the holidays when you’re trying to conceive.

Read More

Everyone knows that alcohol and pregnancy don’t mix. But what about before you’re pregnant, during the trying-to-conceive stage? There’s no evidence that the occasional drink—i.e. one or two a week—is going to torpedo your chances of parenthood. But it is true that the more you drink, the greater the likelihood it will have an effect on your health. Here’s what the research says about alcohol and your fertility.

Read More

You’re clear on the mechanics of making a baby, but how much do you really know about conception and fertility? There are a lot of wild stories, downright falsehoods and notions that are actually rooted in a kernel of truth out there. In the interest of sticking to the facts, we’re debunking 15 of the most common myths about conception and fertility.

Read More

When you’re knocking boots in an effort to get knocked up, timing is everything. Your best chance of conceiving is during the most fertile time of your menstrual cycle—when you ovulate. The key is figuring out exactly when that happens. Fortunately, you have a few ways of detecting ovulation. Here’s what to know about understanding ovulation and timing sex for pregnancy.

Read More

You have big plans for parenthood in 2024, which means this is the time to start laying the groundwork for everything to come. While so much of conception is beyond our control, there are actionable steps you and your partner can take right now to support and nourish your fertility.

Read More

Welcome to our little corner of common fertility and pregnancy terms! We know that jargon can be overwhelming, so consider this your very own baby-making dictionary. Here, confusing medical terms transform into easy-to-understand facts that help you confidently navigate your family planning journey. 

Read More

Is there anything worse than the two-week wait? All the listicles out there sensibly advise keeping busy and journaling and talking it out, but we’re sharing more specific recommendations collected from the Beli community. Read on for seven tips for surviving the two-week wait without losing your mind.

Read More

While PCOS can be a challenging condition to manage, natural supplements like inositol that are included in Beli Preconception Boost offer a beacon of hope. Inositol's ability to improve insulin sensitivity, hormone balance, and ovulatory function makes it a valuable tool in the PCOS management toolkit. 

Read More

Shilajit is finally getting the credit it’s due, and we’re proud to point out that our proprietary formula was the very first to include this powerful Ayurvedic compound. Here’s why shilajit is rapidly becoming the darling of the male fertility world–and what you’re missing if you’re skipping it.

Read More