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Home arrow Fitness arrow Training arrow SportLegs Review: A Personal Take

SportLegs Review: A Personal Take

Written by Isabel Mayfield
Fact checked by Rosmy Barrios, MD
Last update: November 25, 2023
12 min read 1463 Views 0 Reviews
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SportLegs is a supplement designed to reduce muscle soreness, muscle burn, and fatigue, but does it really work? I took a deeper look to find out.

sportlegs review

How do we vet brands and products? Learn more.

If you’re a seasoned athlete or just someone who enjoys regular workouts, you know how frequent muscle fatigue can be. That burn in your muscles, the lingering soreness after a strenuous workout – it’s something we’ve all experienced.

Since you want to push your physical limits and maximize performance, you may want to seek something to reduce this discomfort and improve your workout experience.

While a healthy diet with adequate energy can be of great help, nutritional supplements can be more beneficial. One such supplement is SportLegs, a supplement considered effective for muscle cramping.

As a fitness professional, I’ve tried several supplements and products designed to enhance athletic performance and recovery. When I came across SportLegs, I couldn’t help but dig deeper into it and put it to the test.

Here’s my perspective on SportLegs on whether it lives up to its claims and if it’s a valuable addition to your fitness routine.

What Is SportLegs Lactic Acid Supplement?

SportLegs logo
Our rating:
  • Reduced fatigue
  • Improved performance
  • Reduced muscle burn
  • Faster recovery
  • Reduced leg cramps
Get Started
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    Natural ingredients
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    Suitable for vegetarians
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    No stimulants
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    Limited scientific evidence
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    Lacks essential electrolytes
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    Requires multiple doses
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    Unsuitable for vegans

SportLegs is a lactic acid supplement that raises the threshold for lactate production in exercising muscles. The aim is to reduce the amount of lactate the muscles produce, reducing the amount of lactic acid waste.

The reduction of this waste in exercising muscles means less pain during long rides or a long training run. Lactic acid is a byproduct of anaerobic respiration in exercising muscles.

SportLegs works by introducing lactate into the body before exercise. This triggers lactate production and ensures that only the lactate required is produced when muscles are worked.

The supplement claims to reduce soreness after a hard workout and help people recover faster.

⭐ Rating


✅ Pros

Prevents cramping, boosts performance

❌ Cons

Not vegan, requires multiple doses

🍎 Vegan?


🔔 Ingredients

Calcium, magnesium, vitamin D

💰 Price

From $29.95

How Does SportLegs Work?

I couldn’t find enough evidence supporting the claims that this kind of supplementation affects the amount of pain felt after working out. Some SportLegs reviews even claim the supplement has a placebo effect – only working because you want it to.

There is some evidence that muscles may use lactic acid as fuel when working out. This means that the SportLegs supplement could help endurance by providing another fuel source.

Additionally, one study found that lactate triggers the production of MCTs, which can boost the endurance of your muscles and enhance athletic performance in much the same way as supplementing with MCT oil.

SportLegs claims to reduce lactic acid burn caused by lactate buildup in the muscles, but the theory that lactic acid causes burning and soreness was debunked in the 1980s. This means that this supplement may have no effect on soreness at all.

While the science is lacking, there are a number of hypotheses that could explain how the supplement works. However, with limited evidence, it is hard to say whether SportLegs will work.

How to use SportLegs

SportLegs comes in capsule form. The recommended dosage may vary from person to person, but a common guideline is to take one capsule per 50lbs body weight about 1 hour 30 minutes before your workout.

For longer workouts or endurance events, you might repeat the same dose after 2–3 hours.

The manufacturer advises users not to exceed a maximum daily dosage of 10 capsules. As with any supplement, more doesn’t mean better, and it’s important to prioritize safety.

SportLegs doesn’t have a taste since it comes in capsule form. This means it can be a relief for those who don’t like the flavor of some supplements. The capsules are ‌easy to swallow with water or a drink of your choice.

What I Liked About SportLegs Supplements: 3 Key Benefits

Upon examining SportLegs supplements, I came across several mixed user reviews. Some users have found it to have a huge difference in their endurance training. I have summarized the benefits I’ve identified here.

#1 May reduce muscle burn and cramping

SportLegs users have reported that this supplement reduces muscle cramping. There is evidence to suggest that lactate buildup has an effect on cramping and could contribute to fatigue in muscles.

By supplementing with lactate and lowering the threshold for lactate production, this supplement may help reduce leg cramps and fatigue after long rides, runs, and exercise sessions.

Other methods of reducing cramping include ensuring you drink plenty of water and stay hydrated, keeping your electrolytes in balance, and stretching before long-distance runs and hard workouts.

#2 May enhance athletic performance

I found evidence suggesting that, while lactate has long had a bad reputation, it may, in fact, be used as a fuel source by the body. This means SportLegs could offer further fuel to the muscles, enhancing athletic performance.

Another evidence suggests that lactate may stimulate the release of MCTs. MCT oil is frequently used as a supplement for exercise due to its ability to enhance athletic performance and endurance.

What I liked the most about SportLegs is that all its ingredients are safe for athletes, as they are not considered doping substances. This assures athletes they can use the supplement to potentially enhance their performance without concerns about violating anti-doping regulations.

#3 Promotes faster recovery times

Though evidence has shown that fatigue is caused by a number of factors that include lactate, lactate supplementation can help reduce fatigue and, therefore, recovery times.

It is assumed that recovery rates are faster when lactate is removed from the blood quickly after exercise. Thus, lactate supplementation can reduce the amount of lactate buildup, so there is less to remove.

5 Cons and Side Effects of SportLegs Pills

While SportLegs pills offer several benefits, I also found potential drawbacks and side effects. Here are some of the most common cons you should consider before committing to this product.

#1 Could lead to hypercalcemia

Hypercalcemia is characterized by extremely high levels of calcium in the bloodstream. Calcium is essential in the body, but too much can cause problems.

Symptoms of too much calcium in the blood include headaches, fatigue, excessive thirst, and urination. Supplementation of calcium may also result in constipation.

Hypercalcemia is only a danger if you take too much of this supplement. It’s important to stick to the manufacturer’s recommended dosage. Following the provided guidelines will unlikely lead to hypercalcemia.

However, I would recommend taking caution, especially if you’re already receiving significant calcium from your diet or other supplements.

#2 Could interact with some medications

The calcium lactate present in this supplement may lead to unwanted complications with certain medications such as diuretics, antibiotics, and anti-seizure medications.

If you’re taking any of these medications or have concerns about potential interactions, I recommend consulting with your doctor. They can provide personalized guidance on whether SportLegs is a safe option for you or if an alternative supplement with different ingredients might be a better choice.

Your doctor can also advise you on the timing and separation of taking medications and supplements to minimize potential interactions.

#3 May lead to digestive problems

Calcium lactate has been known to cause constipation and other digestive problems. These side effects may occur during the early stages of your usage.

Additionally, the magnesium in SportLegs can cause digestive issues, particularly in people already getting a lot of magnesium in their diet.

If you experience any digestive discomfort, especially in the early stages of using SportLegs, consider adjusting your dosage. I recommend reducing the number of capsules you take, spreading them throughout the day, and drinking plenty of water to help minimize these side effects while still enjoying its benefits.

#4 May cause mild stomach upset

The SportLegs manufacturers state that mild stomach upset has been reported in the years that the supplement has been on the market. This may be because a SportLegs user takes the supplement on an empty stomach.

However, this may vary from person to person, and not everyone may experience this issue.

Consider taking the supplement with a meal or a snack. This can help provide a buffer and reduce the likelihood of any gastrointestinal discomfort.

#5 Could cause an allergic reaction

Though very rare, there is some risk of allergic reactions. Symptoms of an allergic reaction include hives, swollen lips and eyes, difficulty breathing, rapid heart rate, and loss of consciousness.

If you have had any adverse reactions to any of the ingredients within the supplement, avoid taking it. If you experience any symptoms of an allergic reaction, seek emergency medical attention.

What Ingredients Does the SportLegs Supplement Contain?

SportLegs contains 6 ingredients designed to induce less pain after workouts and enhance athletic performance. Here’s a closer look at each ingredient.

Vitamin D

Vitamin D has many benefits for exercise and recovery. To begin with, it has musculoskeletal benefits. It plays an important role in bone health.

Additionally, it increases muscle protein synthesis and ATP concentration, prolonging aerobic respiration in muscles. Indeed, there is some evidence that supplementation of the vitamin can increase overall performance.

You also need vitamin D to be able to absorb calcium. Calcium is a prominent ingredient in SportLegs.

Nonetheless, vitamin D supplementation may cause constipation in some.


Calcium is essential in the body and is needed for strong bones. It is also needed for muscle movements, including contractions, and stabilizes blood pressure during exercise. Increasing your daily calcium intake is helpful for better athletic performance.

I’ve found calcium to be a common inclusion in many supplements I have reviewed, especially those designed for bone health and physical performance. Its inclusion in SportLegs is beneficial as it may help in muscle function and potentially reduce cramping.

In this supplement, calcium acts as a transporter for the lactate, helping it effectively penetrate the muscles.


Magnesium supplementation is thought to enhance athletic performance and has benefits for recovery, too. Though magnesium is used as a transportation method for lactate in the supplement, magnesium still supports better performance.

Magnesium is well known in the supplement industry for its role in muscle relaxation and reducing muscle cramps. When incorporated into a healthy diet, it can also promote weight loss.

I found it a valuable addition to SportLegs, especially for those engaging in strenuous physical activities.

Overall, magnesium is essential in the body. It supports muscle function and energy production, and getting enough is important for your health.


Lactate is the active ingredient in this supplement. It is used to reduce lactate threshold production. While it’s less common to find lactate as a primary ingredient in many supplements, its inclusion in SportLegs is noteworthy due to its potential benefits.

The main benefits of this ingredient include reducing muscle soreness and recovery times. It may also help reduce cramping and pain.

Stearic acid

Stearic acid is a long-chain fatty acid that is found in plant and animal compounds. It is a major component of cocoa butter and shea butter. It has anti-inflammatory properties and is used in a variety of biomedical applications.

Although this ingredient is not commonly used in sports supplements, it serves an important role in preventing the formula from clumping together, which can be a common issue in supplements.


Silica is a natural compound found in rocks and clay. It supports bone formation and stimulates the production of collagen. Collagen protects joints, which is useful for frequent runners.

In supplements, it is frequently used to stop the formula from clumping together.

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How I Analyzed SportLegs

When I review supplements, I aim to give as much information as possible to help our readers make an informed decision. I also review products fairly based on four categories: quality, effectiveness, price, and brand reputation.

Quality 4/5

Quality is key to our health. If you’re taking a supplement to boost your health, then you need to make sure it is of good quality and safe.

The SportLegs product is ‌considered to be of good quality. The manufacturers claim to double-test ingredients and get them from reputable sources.

When choosing supplements, whether for running or to boost your mineral intake, it is very important to ensure all ingredients are of the highest quality to ensure safety.

Effectiveness 3/5

Effectiveness is just as important as quality when it comes to health supplements. You need to make sure the product you’re taking does what it says on the label; otherwise, it is pointless.

The SportLegs product may be effective. I have seen users reporting lots of success and have recounted incredible benefits from this product.

However, I didn’t get enough scientific evidence to support the effectiveness of this supplement, and not much is known. Very little has been confirmed in research carried out on lactate supplementation.

Price 4/5

Price is important when we review products because we believe good health should be accessible. Products that help your health shouldn’t cost the earth.

SportLegs is an extremely accessible supplement, costing only $29.95 for a bottle containing 120 pills.

You can also find a trial pack of the supplement to help you decide whether to take it.

Brand reputation 5/5

The reputation of a brand can be the difference between a good product and an excellent product. If a brand is reputable, it is more likely to produce quality and effective products.

SportLegs has a good reputation in the wellness space, which means it is likely a good product. It is safe and may have some benefits for training.

A Word From Our RD

Expert image border HR_author_photo_Edibel
Edibel Quintero, RD
Medical advisor for Health Reporter

Lactate supplements may contain calcium and magnesium as a carrier. Magnesium is an essential mineral in our body. There is evidence to suggest that it boosts athletic performance. Calcium helps muscles to contract and increase bone health, making it useful during exercise.

While lactate supplements can boost performance, endurance, and recovery, you can also take other measures. You should ensure that your electrolytes are balanced and that you drink plenty of water.

You should also ensure that you stretch before training and perform a proper cool down to reduce muscle soreness and pain the next day. If you find you still feel tired the next day, you may need to adjust your training to better suit your fitness levels.

Lactate supplementation has been found useful by many people who exercise and could also help you reduce soreness and fatigue.


Is it good or bad to use SportLegs Pills?

SportLegs pill reviews vary as to the efficacy of the pill, but the product is safe and suitable for use before training. Take the recommended dose before a training session for the best results.

Is the SportLegs Supplement safe to use?

The SportLegs supplement is completely safe to use. The manufacturers double-test all ingredients and source them from reputable places.

Is it okay to take SportLegs every day?

SportLegs is not designed to be taken every day. Instead, you should take it before you intend to work out.

Where can I buy SportLegs pills?

SportLegs pills can be found on the manufacturer’s site. They may also be found in health stores and on marketplaces like Amazon.

What is the recommended daily dosage?

The manufacturers recommend you take one pill per 50 pounds of body fat. This means if you weigh 125 pounds, you should take three pills.


SportLegs offers a unique approach to addressing the challenges of fatigue and recovery. I like the fact that it combines ingredients like calcium, magnesium, lactate, and vitamin D, which, when used appropriately, can potentially enhance athletic performance and reduce muscle soreness.

However, user reviews are mixed on how effective SportLegs actually is, and the science may not fully back the manufacturer’s claims. For that reason, consult with your healthcare professional or sports nutritionist before starting on this supplement to get personalized guidance.

If SportLegs does not align with your specific needs and goals, consider exploring other alternatives like Runners Recovery Mix by Runfit or the SIS Go Energy to help improve your performance.

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Written by Isabel Mayfield
Fact checked by Rosmy Barrios, MD
Last update: November 25, 2023
12 min read 1463 Views 0 Reviews
0 Reviews

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