8 Best Supplements for Endurance

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Do you like to exercise? Do you like to push your body to the limit and see how far you can go? If so, then you need to be taking supplements for endurance.

There are many different supplements out there that can help improve your endurance, but not all of them are created equal.

In this blog post, we will discuss 8 of the best supplements for endurance and explain why they work so well!

Keep in mind supplements are lightly regulated by the FDA. Their stated claims have no guarantee. They aren’t cures or treatments for any diseases.

Please check with your doctor before starting any supplement program and that we include items that we trust will be useful to our visitors.

If you click one of the links on our site, we may get a commission. If you have questions see the FAQ section below – now let’s dive in!

Best for L-Arginine – Havasu Nutrition

  • Price = $22.99
  • # of Servings = 60
  • Price per Serving = $0.38
  • Product Reviews = 4.2/5 (46,786 reviews)
  • Serving Size = 2 Capsules
  • Taste / absorption = Unflavored
  • Labeled Effect = Support endurance and stamina
  • Food Allergens = Safe
  • Pros = #1 Best Seller in L-Arginine Nutritional Supplements
  • Cons = Not many other vitamins, minerals or herbs

About L Arginine

Looking for a workout supplement that will help you achieve optimal results? Look no further than Havasu Nutrition’s L Arginine supplement.

This blend of l arginine citrulline and beet root powder is designed to give men the edge they need to succeed in the gym. With high dosages of both l-arginine and l-citrulline, this supplement provides your body with the nitric oxide it needs for increased blood flow and circulation.

This is the perfect supplement for men who are looking to bulk up and build muscle.

With its convenient capsule form, Havasu Nutrition’s L Arginine is easy to take without sacrificing any of the benefits. As the #1 Best Seller in L-Arginine Nutritional Supplements, this supplement is great gift to give yourself for the edge you need to succeed.

Made By Havasu Nutrition:

Began in 1994 and now located in Florida. According to ReviewMeta.com, Havasu Nutrition gets a 4.1/5 average adjusted rating from 6,274 verified reviews.

  • Start = 1994
  • Revenue = less than 25
  • Employees = 18 million
  • Mission = Help you maintain optimal health with supplements that fill in the gaps
  • Third Party Certifications = GMP
  • Third Party Reviews = 4.1/5 average adjusted rating from 6,274 verified reviews

Best for ZMA – Optimum Nutrition 

  • Price = $35.00
  • # of Servings = 60
  • Price per Serving = $0.58
  • Product Reviews = 4.6/5 (11,635 reviews)
  • Serving Size = 3 Capsules
  • Taste / absorption = Unflavored
  • Labeled Effect = Support, Muscle Recovery and Endurance
  • Food Allergens = Safe
  • Pros = Amazon’s Choice for “ZMA”
  • Cons = 3 capsules per serving

About Zinc Magnesium Aspartate:

Looking for a high-quality supplement to support your active lifestyle? Optimum Nutrition Zinc Magnesium Aspartate (ZMA) is a great option!

This formula provides immune support and is packed with essential nutrients like zinc, magnesium, and vitamin B6. With 10mg of vitamin B6, 435mg of magnesium, and 28mg of zinc, this supplement is perfect for filling gaps in your micronutrient intake. Plus, the active lifestyle formula is designed to meet the nutritional needs of those with an active lifestyle.

So whether you’re hitting the gym hard or training for a marathon, Optimum Nutrition Zinc Magnesium Aspartate can help you reach your fitness goals.

Made by Optimum Nutrition:

Made and trusted by athletes, Optimum Nutrition has decades experience. According to ReviewMeta.com, Optimum Nutrition receives a 4.1/5 average adjusted rating from 67,776 verified reviews.

  • Start = 1986
  • Revenue = $21 million
  • Employees = 112
  • Mission = helping performance focused athletes achieve their goals
  • Third Party Certifications = GMP, NSF
  • Third Party Reviews = 4.1/5 average adjusted rating from 67,776 verified reviews

2nd Best for Caffeine – Natrol

  • Price = $14.99
  • # of Servings = 100
  • Price per Serving = $0.14
  • Product Reviews = 4.3/5 (5,502 reviews)
  • Serving Size = 1 Tablet
  • Taste / absorption = Unflavored
  • Labeled Effect = Support, Helps Enhance Endurance and Mental Focus, Caffeine
  • Food Allergens = Safe
  • Pros = Amazon’s Choice for “energy supplements”
  • Cons = None

About High Caffeine Tablets, Energy Support:

Looking for an energy supplement that will help you power through your workouts and improve your performance? Look no further than Natrol High Caffeine Tablets! These tablets deliver a surge of caffeine to help jumpstart energy production and delay fatigue, so you can make the most of your workout. Plus, the recommended dosage of Natrol High Caffeine can also provide multiple other performance enhancements, including elevated alertness, quicker reaction time, and increased endurance. With so many benefits, it’s no wonder that Natrol High Caffeine Tablets have earned over 3,000 five-star reviews!

Made by Natrol:

Began in 1980 and now located in California. Brand values include quality, people, innovation, customer service, and cost effectiveness. According to ReviewMeta.com, Natrol has a 4.1/5 average adjusted rating from 34,006 verified reviews.

  • Start = 1980
  • Revenue = $65 million
  • Employees = 301
  • Mission = improve human wellness worldwide
  • Third Party Certifications = Natural Products Association
  • Third Party Reviews = 4.1/5 average rating from 34,006 reviews

Best Caffeine Capsules – Bulk Supplements

  • Price = $12.96
  • # of Servings = 120
  • Price per Serving = $0.10
  • Product Reviews = 4.7/5 (1,701 reviews)
  • Serving Size = 1 Capsule
  • Taste / absorption = Unflavored
  • Labeled Effect = Improved endurance in high-intensity exercises
  • Food Allergens = Safe
  • Pros = High quality caffeine capsules, competitive pricing
  • Cons = No other vitamins, minerals or herbs

About Caffeine Capsules:

Look no further for a quick and easy energy boost than Bulk Supplements Caffeine Capsules! Made with pure caffeine, these capsules are perfect for those moments when you need an extra push to get through the day.

Caffeine is a natural stimulant that helps to increase alertness and focus, making it ideal for use before physical activity or during periods of extended wakefulness.

Whether you’re looking for an edge during your next workout or just need a little help getting through a long day, Bulk Supplements Caffeine Capsules are up to the task.

Although if you are looking for caffeine pills, please do consider How Useful Is Caffeine in the Long Run?

Made By Bulk Supplements: 

Bulk Supplements started in 2011 and is based in Nevada. Its main manufacturing facility is FDA registered. According to ReviewMeta.com, average adjusted rating is 4.4/5 from 39,370 verified reviews.

  • Start = 2011
  • Revenue = $10 million
  • Employees = 50
  • Third Party = Certifications = NSF, cGMP
  • Third Party = Reviews = 4.4/5 from 39,370 reviews

Best for BCAA’s – Optimum Nutrition

  • Price = $12.99
  • # of Servings = 30
  • Price per Serving = $0.43
  • Product Reviews = 4.7/5 (50 reviews)
  • Serving Size = 2 Capsules
  • Taste / absorption = Unflavored
  • Labeled Effect = Support your active lifestyle
  • Food Allergens = Safe
  • Pros = High quality BCAA’s
  • Cons = No other vitamins, minerals or herbs

About BCAA 1000:

If you’re looking for a high-quality branched chain amino acid supplement to support your active lifestyle, look no further than Optimum Nutrition BCAA 1000. These BCAA capsules deliver 1000 mg of BCAAs per serving in a 2:1:1 ratio of Leucine to Isoleucine and Valine, making them an essential part of your daily amino acid intake.

Plus, the easy to swallow capsules make them convenient to take before training or after your workout.

Made by Optimum Nutrition:

Made and trusted by athletes, Optimum Nutrition has decades experience. According to ReviewMeta.com, Optimum Nutrition receives a 4.1/5 average adjusted rating from 67,776 verified reviews.

  • Start = 1986
  • Revenue = $21 million
  • Employees = 112
  • Mission = helping performance focused athletes achieve their goals
  • Third Party Certifications = GMP, NSF
  • Third Party Reviews = 4.1/5 average adjusted rating from 67,776 verified reviews

Best for Clinical Research – Life Extension

  • Price = $24.30
  • # of Servings = 60
  • Price per Serving = $0.40
  • Product Reviews = 4.9/5 (43 reviews)
  • Serving Size = 2 Vegetarian Capsules
  • Taste / absorption = Unflavored
  • Labeled Effect = Supports normal heart muscle function and coronary artery health and helps improve exercise endurance
  • Food Allergens = Gluten free, Safe
  • Pros = Some clinical research
  • Cons = Fewer reviews

About Cardio Peak:

If you’re looking for a clinically-backed way to support your heart health, look no further than Life Extension Cardio Peak.

Formulated with two powerful cardiotonic herbs, Hawthorn and Safflower, Cardio Peak helps promote normal circulation, heart muscle function and contractions, and provides protection against damaging oxidative molecules. Read here for clinical research on Hawthorn and cardio health.

It also helps protect the critical endothelial layer in your coronary arteries, supporting an overall cardioprotective program.

Made by Life Extension:

Life Extension began in 1980 and is still going 40 years later. In 2021 ConsumerLab.com voted Life Extension as #1 Rated Catalog/Internet Merchant. According to ReviewMeta.com, Life Extension’s average adjusted rating of 4.1/5 from 24, 224 verified reviews. 

  • Start = 1980
  • Revenue = $168 million
  • Employees = 500
  • Mission = Achieve your goals with the best nutritional products that science can offer
  • Third Party Certifications = GMP, Non-GMO
  • Third Party Reviews = average adjusted rating of 4.1/5 from 24, 224 reviews

Best for L-Carnitine – Superior Labs

  • Price = $26.97
  • # of Servings = 100
  • Price per Serving = $0.26
  • Product Reviews = 4.8/5 (1,011 reviews)
  • Serving Size = 2 Vegetarian Capsules
  • Taste / absorption = Unflavored
  • Labeled Effect = Produce energy and promote endurance
  • Food Allergens = Safe
  • Pros = High quality Acetyl L-Carnitine
  • Cons = Does not contain other minerals and herbs

About Acetyl L-Carnitine:

Acetyl L-Carnitine is an amino acid that is important for multiple body processes, including energy production, heart function, brain function, and mood. It is a powerful supplement that can help boost memory and focus, as well as support a healthy mood. If you are looking for a supplement to help you feel your best, Acetyl L-Carnitine from Superior Labs is a great option.

Made by Superior Labs:

Began in 2007, geared for athletes, and has FDA, GMP certification. Mission statement emphasizes purity, testing, and quality. According to ReviewMeta.com, Superior Labs has an average adjusted rating of 4.3/5 with 3902 verified reviews.

  • Start = 2007
  • Revenue = $6 million
  • Employees = Less than 25
  • Mission = Purity, testing, and quality
  • Third Party Certifications = NSF, GMP
  • Third Party Reviews = Average adjusted rating of 4.3/5 with 3902 reviews

Best for Ashwagandha – Naturewise

  • Price = $29.99
  • # of Servings = 30
  • Price per Serving = $0.99
  • Product Reviews = 4.7/5 (74 reviews)
  • Serving Size = 2 Vegetarian capsules
  • Taste / absorption = Unflavored
  • Labeled Effect = Increase muscle strength and recovery
  • Food Allergens = Safe
  • Pros = Some clinical research, high quality blend
  • Cons = Fewer reviews

About Ashwagandha for Endurance

Looking for a little extra edge in your workout routine? Ashwagandha for Endurance was created to help support optimal cardio and respiratory function for improved stamina and muscle strength. KSM-66® Ashwagandha, an award winning herbal extract, is the key ingredient in this natural sports nutrition superblend.

This clinically proven adaptogen has been shown to encourage the reduction of body fat, healthy testosterone levels, and enhanced athletic performance in active men.

Additionally, herbs and nutrients like Green Tea, Coenzyme Q10, and Vitamin B12 work together to boost metabolism and energy production while you train.

So whether you’re hitting the gym or the pavement, Ashwagandha for Endurance can help you go the distance.

Made by Naturewise:

Founded in 2012 in California, Naturewise aims to promote health and inspire wellness. According to ReviewMeta.com, Naturewise has a 4.2/5 average adjusted rating from 32,542 verified reviews.

  • Start = 2012
  • Revenue = $31 million
  • Employees = less than 25
  • Mission = promote health and inspire wellbeing
  • Third Party Certifications = Manufactured in US
  • Third Party Reviews = 4.2/5 average rating from 32,542 reviews

What factors do we use to rank supplements?

1 – Price: What’s the price of the supplement? What’s the cost per serving? At Eating Enlightenment we value quality over price. However, all else being equal, then price comes into consideration. 

2 – Reviews: How many reviews for each product? What’s the average rating? How many third party reviews? We strongly believe in third party reviews. Many supplement companies list positive reviews on their website, but third party reviews include negative comments. We always go with third party reviews.

3 – Reputation: How reputable is the brand behind the supplement? How long has the brand been around? What’s their mission? We believe that a company’s intention is highly important and should be one of your top purchasing decision factors. See the top 21 most popular supplement manufacturers.

4 – Taste / Absorption = What’s the taste? How quickly does your body absorb the supplement? Do reviews mention any negative side effects like an upset stomach?

5 – Perceived Therapeutic Effect = What beneficial effects or feelings does this supplement promote? Learn if you are taking too many supplements.

6 – Food Allergens = Does the company provide allergen info?

7 – Science / Certifications: Does the company list transparent scientific studies on their website? Do third party certifications test the company’s supplement for quality control? How many certifications does the company have? Read here for more info about whether supplements are FDA approved.

8 – Pros/Cons: What are the pros and cons of each supplement? How is the supplement unique? For what situations is this supplement best?

Why are endurance supplements important? 

For athletes or physically active individuals, endurance supplements can enhance their performance and lead to improved athletic performance. They can also benefit those with physical jobs or busy lifestyles by giving them the extra boost they need to maintain their daily activities without feeling exhausted.

In addition to improving endurance, these supplements can also have other health benefits such as boosting the immune system and improving mental clarity. Overall, these supplements can be a safe and effective way for individuals to improve their physical endurance and maintain an active lifestyle.

You may also want to read about:

Who will benefit by taking endurance supplements? 

Endurance supplements can benefit anyone looking to improve their physical stamina and endurance during exercise. This can include endurance athletes or individuals training for a specific event, as well as those simply looking to increase their overall fitness level and exercise performance.

Endurance supplements can also benefit older adults seeking to improve their strength and mobility, as well as individuals recovering from injuries that may have affected their endurance.

However, it is important to note that these supplements should always be used in conjunction with a balanced diet and regular exercise program in order to achieve optimal results, especially if you’re an endurance athlete. Consult with your doctor or medical professional before starting any new supplement regimen.

Who should not take endurance supplements?

There are a few groups of people who should not take endurance supplements. First, children and adolescents who are still growing and developing should not take these supplements as they can interfere with normal growth and development. Second, people with medical conditions such as heart disease, high blood pressure, or diabetes should not take endurance supplements as they could worsen their condition.

Finally, pregnant or breastfeeding women should not take endurance dietary supplements. If you are unsure if you should take an endurance supplement, please speak to your doctor.

What are the risks to taking endurance supplements?

As with any supplement, there are always potential risks to taking endurance enhancers. One of the biggest concerns is that these supplements often contain untested or banned substances, which can lead to serious health issues.

In addition, individuals may mistakenly assume that these products will make up for poor training habits and increase their risk for injury. It is important to consult with a healthcare professional before taking any type of endurance supplement, as they can provide personalized advice and monitor for any potential side effects.

Even natural supplements may interact negatively with certain medications or pre-existing medical conditions. As always, building endurance through regular, endurance exercise and maintaining a balanced diet remains the safest and most reliable approach to improve your endurance performance. 

Ultimately, using caution and seeking expert guidance can help individuals minimize the potential risks associated with endurance supplements.

What time should I take endurance supplements? 

When it comes to taking endurance supplements, timing can make a difference in their effectiveness.

For maximum benefit, you should take them approximately half an hour before starting your workout, as this allows the supplements to be absorbed and start working while you are actively exercising.

You may also choose to take a second dose right after finishing your workout, as this can help with muscle recovery and replenishing lost nutrients.

Of course, it’s important to always follow the recommended dosage guidelines on the supplement label and consult with your doctor before starting any new supplement regimen. This is especially true is the dosage is tied to your body weight.

Overall, by timing your endurance supplement intake strategically, you can optimize their impact on your fitness routine.

Food sources for endurance

When it comes to endurance, proper fueling is crucial in order to keep your energy levels sustained during a workout or event.

When choosing foods for endurance, it’s important to prioritize carbohydrates for energy, protein for muscle repair and growth, and healthy fats for sustained energy release. Whole grains like oatmeal or quinoa, lean meats like chicken or salmon, and fruits and vegetables are all excellent choices.

It’s also important to stay hydrated by drinking plenty of water throughout the day. Eating balanced meals leading up to an endurance event can help ensure that your body has the fuel it needs to perform at its best.

However, during strenuous activity it’s a good idea to supplement with sports nutrition drinks or snacks such as bananas or energy bars to maintain blood sugar levels and replenish electrolytes.

By consuming the right mix of nutrients, you can optimize your endurance and give yourself the best chance of success in any physical challenge.

If you want a specific meal plan you may want to order an online blood test for vitamin deficiencies to see if there are nutrient gaps in your diet, so that you can make sure you’re getting foods that satisfy any nutrient gaps.

What nutrient increases endurance the most?

Athletes routinely take steps to increase their endurance, whether it be engaging in rigorous training, eating the proper diet, or taking nutritional supplements. One of the most important nutrients for boosting endurance is Iron. This mineral transports oxygen around the body to help keep muscles and organs working at peak levels. Without enough Iron in the body, athletes can become fatigued and have difficulty competing at their best.

While Iron is found naturally in foods such as red meat, poultry, fish, and dark green leafy vegetables, some athletes may require additional doses of Iron through supplements. Vitamin B12 is also useful for increasing endurance since it helps break down food into energy that can be used by the muscles.

Vitamin C is another must-have nutrient since it helps keep tissue strong and helps detoxify any metabolic byproducts that could otherwise cause fatigue. With plenty of Iron, vitamin B12, and vitamin C in their body, an athlete will have a much better chance of promoting prolonged endurance and reaching peak performance levels.

How can I improve my endurance naturally without supplements? 

When it comes to endurance, one of the biggest factors is cardiovascular health.

Regular exercise can improve your heart’s ability to pump blood and deliver oxygen to your muscles, increasing endurance. In addition, a well-balanced diet packed with fruits and vegetables can provide your body with the nutrients it needs for energy production.

Eating protein before and after a workout can also enhance recovery and build muscle strength, in turn improving endurance. However, by focusing on exercise and nutrition, you can naturally improve your endurance without the use of supplements.

How soon after taking endurance supplements will I feel better?

The effects of endurance supplements can vary depending on each individual’s body and health conditions. Some individuals may experience improved endurance and reduced fatigue within a few days, while others may take longer to see benefits.

Keep in mind that supplementing for endurance should be part of a comprehensive plan for improving overall health, including regular exercise, proper sleep, and a balanced diet. It is important to consistently take the supplement as directed and give it enough time to work before evaluating its effectiveness.

If you do not notice any improvements after a couple of weeks or have any concerns about taking the supplement, consult with your doctor for personalized advice.

Best Supplement for Endurance – Conclusion

In conclusion, endurance supplements can be an effective way to improve performance, reduce fatigue, and increase energy levels. By taking the right mix of vitamins and minerals strategically timed before or after a workout, individuals can optimize their endurance and better prepare themselves for physical activity.

However, proper nutrition and exercise are essential components of any endurance supplement regimen. A balanced diet rich in whole grains, lean proteins, and fruits and vegetables can provide the fuel that your body needs to perform at its peak.

Additionally, regular exercise can help build muscle strength and improve cardiovascular health, allowing you to naturally increase endurance without relying on supplements. Ultimately, when it comes to improving endurance through supplements, timing is everything. With proper use, you can take your performance to the next level.

We hope this article has provided some useful insight into the best supplements for endurance and how they can help optimize physical performance. We invite readers to leave their thoughts and questions in the comments section below. Your feedback is always appreciated!

If you are looking to start supplementing but aren’t sure where to begin, check out “What Supplements Should I Be Taking? Here Are Top 20”.

If you want to learn more about supplements and vitamins in general, read our Supplements and Vitamins – Ultimate Beginner’s Guide.

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About the Author

Hi, I'm Jared and welcome to Eating Enlightenment. I'm a Certified Intuitive Eating Counselor with a Master's Degree in Counseling from Santa Clara Clara University. In my coaching I help people with BOTH nutrition and psychology.

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