The Ultimate Guide to the Best Supplements for Crossfit Athletes


Table of Contents

Welcome to the world of CrossFit! If you’re ready to take your workout routine to the next level, you’ve come to the right place. Many athletes have faced similar challenges in finding safe and effective supplements for improving their training and performance.

We understand this struggle, and after conducting in-depth research on supplementation for CrossFit, we created a comprehensive guide containing our top recommended supplements so you can reach your goals safely and effectively!

Best Supplements For Crossfit

This blog post offers a supplement guide for CrossFit athletes, with scientific evidence to help you make informed purchasing decisions.

Get ready to explore various supplements, from protein powders and fish oil to lesser-known options such as Citrulline Malate and Vitamin D3. Our discussion provides readers with plenty of choices to meet their specific needs.

Key Takeaways

  • Creatine Monohydrate helps improve strength, power, and muscle mass and supports bone mineral density and cognitive performance.
  • BCAAs help reduce muscle soreness post-workout, support endurance during high-intensity workouts, hasten recovery following exercise, and aid in fat burning.
  • Fish oil is packed with omega-3 fatty acids, which provide anti-inflammatory effects that can be beneficial for joint health while also helping reduce blood pressure levels.
  • Protein powder helps rebuild depleted protein stores after physical exertion by providing fast-digesting essential amino acids at a ratio of 4:1 or 8:1 carbohydrates to proteins, respectively, soon after workouts for best results.

The Essential Supplements for CrossFit

CrossFit athletes should consider including key supplements in their diet, such as Creatine MonohydrateBeta-Alanine, BCAAs (branched-chain amino acids), Fish Oil, and Protein Powder for optimal performance.

Creatine Monohydrate

CrossFit athletes can benefit from adding creatine monohydrate into their supplement regimen. Science has conclusively proven the efficacy of this supplement in enhancing strength, power, and muscle mass thanks to more than 100 investigations over a quarter of a century.

This makes it one of the most widely researched and recommended pre-workout supplements for those participating in Crossfit activities.

The most common dosage found to be effective is five grams per day for adults already engaged in moderately intense workouts. However, this may need adjustment depending on an individual’s goals and body type.

Creatine is known to help individuals increase maximal strength and performance by its effects on ATP synthesis.

It also reduces lactic acid buildup during intense exercise bouts allowing you to go longer before fatigue kicks in – plus, it helps build lean body mass too!


Beta-alanine supplementation is crucial for CrossFit athletes, enhancing physical and mental performance during training.

This non-essential amino acid supports carnosine production, reducing muscle fatigue. Embrace beta-alanine to amplify athletic capabilities and endurance.

Research has shown that taking beta-alanine supplements can elevate carnosine levels in muscles. This, in turn, can enhance performance during aerobic and anaerobic events.

Studies indicate that this supplementation can yield notable enhancements in exercise capacity and increased power output.

Moreover, beta-alanine has the potential to alleviate fatigue associated with intense, high-intensity workouts, enabling better concentration on specific tasks, improved reaction times, and reduced accumulation of lactic acid. These factors are crucial for performing rigorous CrossFit exercises.


BCAAs, or branched-chain amino acids, are crucial for CrossFit athletes. They combat fatigue, prevent muscle breakdown, and aid muscle growth when combined with essential supplements.

Adding BCAAs to your routine optimizes performance and maximizes gains.

Studies show that supplementation of BCAAs can lead to improved performance by helping to prolong the time-to-exhaustion of high-intensity physical activities.

Additionally, BCAAS is also beneficial for reducing postoperative muscular soreness and decreasing oxidation rates of muscles under intense training programs.

To optimize the desired outcomes, consuming them before or after workouts is recommended based on individual goals.

Consuming before a workout focuses on increasing endurance while consuming them post-workout aims to decrease recovery times.

However, it’s important to consult a doctor beforehand because BCAA levels already exist naturally in the human body. It must be ensured that supplementing these levels is recommended according to individual health considerations.

Fish Oil

Fish oil is an essential supplement for CrossFit athletes, known for its anti-inflammatory properties and high omega-3 fatty acids DHA and EPA levels.

Studies have proven that fish oil supplementation suppresses resistance exercise and feeding-induced increases in anabolic signaling – making it helpful for muscle growth.

The omega-3’s found in fish oil are also great for your heart, brain, digestive health, immunity system and more.

Fish oil can also reduce inflammation in the body while maintaining a healthy balance between omega 3s and 6s – leading to weight loss and decreased joint pain due to improved blood circulation.

Popular among fitness enthusiasts, it helps increase maximal strength gains from workout sessions and reduces skeletal muscle damage – resulting in quicker post-workout recovery times too! With so many benefits associated with its consumption, it’s no wonder fish oil is included on the list of best supplements for CrossFit athletes today!

Protein Powder

Protein powder is a popular and convenient way for CrossFit athletes to meet their daily protein targets. Protein helps strengthen muscles by aiding in muscle repair, growth, and endurance.

Whey protein isolate is one of the most popular options among CrossFit athletes, due to its low fat and carb content.

Some highly rated whey protein brands specifically tailored for CrossFit include Transparent Labs Grass-Fed Whey Protein Isolate, Ascent Native Fuel Whey Protein Concentrate Blend, and Progenex More Muscle Protein Powder.

To maximize workout results and muscle gain, athletes should consume 1-2 times more protein than the Recommended Dietary Allowance (RDA) based on age and gender. It is recommended to have 20g of high-quality whey protein before or within 30 minutes after exercising for optimal effects.

The Science Behind CrossFit Supplements

CrossFit supplements support athletic performance and bodybuilding goals by providing essential nutrients and promoting muscle recovery, strength, and energy.

Benefits of each supplement

• Creatine Monohydrate: One of the most important and popular supplements for CrossFit athletes, creatine monohydrate helps to improve strength, power, and muscle mass. It is also known to help with bone mineral density and cognitive performance.

Recommended dosage and timing

When considering supplementation for CrossFit athletes, the dosages and timing of supplements should be taken into account in order to maximize the benefits.

  1. Creatine Monohydrate – It is suggested that CrossFit athletes should supplement 3-5g per day, split evenly between two doses. The optimal time for consumption is pre- and post-workout, to ensure muscle cells are supplied with adequate creatine stores for energy production during workouts.
  2. Beta-Alanine – For increased carnosine concentrations and improved exercise performance, 6-10g of beta-alanine should be taken an hour or more before working out in three 2g doses.
  3. BCAAs – For maximal recovery from intense workouts, BCAAs should be consumed immediately following an activity as part of a meal or shake containing carbohydrates and proteins at a ratio of 4:1 or 8:1, respectively. Ideal dosages range from 5-20g depending on body weight and goals.
  4. Fish Oil – Up to (3000mg EPA/DHA) per day is commonly recommended for improving cardiovascular health, joint recovery, increasing fat loss, promoting better hormone balance and reducing inflammation caused by exercise. With multiple types available it’s important to research quality sources when selecting these supplements..
  5. Protein Powder – 1 – 2 servings daily either before or after a workout can provide additional amino acids to promote muscle growth and reduce fatigue associated with CrossFit workouts; A ratio of whey to casein protein powder ranging from 2:1 to 5:1 yields optimal results for maximal recovery and decreased catabolic effects of intense exercise .

Potential side effects

When using supplements like creatine, beta-alanine, BCAAs, fish oil and protein powder for Crossfit exercises, it is important to be aware of the potential side effects. These potential side effects include:

  1. Digestive issues – such as bloating or stomach pain due to increased levels of these supplements in the body.
  2. High blood pressure – use of some supplements may increase one’s blood pressure if taken in high doses which can lead to further health complications.
  3. Mental clarity – some people may experience mental fog and confusion after taking long-term CrossFit supplementing drugs, as they can sometimes affect the neurotransmitter functions in the brain.
  4. Urine color changes – during high levels of supplementation with BCAAs and/or creatine some people experience urine that turns dark, which should not be a cause for concern but could indicate an alteration on your kidney functions.
  5. Regular intake of the CrossFit supplements listed above can pose risks of liver and kidney damage. It is crucial to be vigilant for any worrisome symptoms and promptly seek medical advice before continuing long-term usage.
  6. Potential risk of Exertional Rhabdomyolysis – Excessive fatigue is a sign that you might be pushing yourself too hard during exercises. This can increase your risk of developing this condition characterized by muscle pain caused by breakdown or damage to the skeletal muscles from extreme over exercise
  7. Possible allergic reaction – In rare cases, an individual may have an allergic reaction due to any ingredient found in the cross fit supplement which could range from hives to nausea or vomiting

Choosing the Right Supplements for CrossFit

Choosing the right supplements can be a daunting task, particularly for CrossFit athletes who have varying individual goals and needs.

Considerations for individual goals and needs

When selecting the right supplements for CrossFit, it is essential to consider your individual goals and needs. Your fitness leveltraining intensity, and specific goals can all have an impact on which supplements will be most beneficial for you.

For instance, a beginner may want to focus more on basic essentials such as whey protein powder or BCAAs while an advanced athlete might opt for specialized formulas such as multi-vitamins or beta-alanine supplementation.

Additionally, someone who wants to increase muscle mass may benefit from fish oil or creatine monohydrate but someone wanting to lose body fat could invest in omega-3 fatty acid rich krill oil or something like citrulline malate.

Quality and reputable brands

CrossFit athletes should consider the quality and reputation of brands when choosing supplements for their workouts. Reputable brands will have undergone third-party testing to ensure that the supplements are safe, pure, and effective.

Avoiding fillers and additives is also important; look for labels that advertise “all natural” ingredients as well as ones without preservatives or artificial sweeteners.

Choosing a reputable brand helps maximize training time by ensuring your body has all it needs–and none of what it doesn’t!

Furthermore, reputable brands come with other benefits such as comparisons to other competitors’ products (like price versus value), plus reassurance that you know exactly what’s going into your body before you take any supplement.

Quality and reputable brand selection could be the difference between good or great progress in CrossFit training — so don’t forget to factor this in when selecting your pre-workout fuel!

Price versus value

When it comes to choosing supplements for CrossFit, considering price versus value is essential. Quality should always be the priority when selecting protein powder or other supplements that play a role in gym performance and long-term health.

It’s important to look for reputable brands and recognize that not all expensive products are worth their higher cost; similarly, some less costly options could offer more value than more expensive counterparts.

Evaluating all elements of a product—not just its price tag—will ensure you get the most out of your supplement purchase.

Careful consideration can also help prevent overspending on unnecessary items with limited effectiveness or availability, leaving extra funds free for additional training gear and equipment which will provide even greater benefits towards achieving CrossFit goals.

Other Recommended Supplements for CrossFit

There are many other supplements that CrossFit athletes should consider to optimize their nutrition and performance, such as Turmeric, Citrulline Malate, N-3 Fats and ZMA.

To find out which supplement would be the best suited for your training goals, continue reading!


Turmeric has become a popular supplement for CrossFit athletes, due to its ability to reduce exercise-induced inflammation.

Moreover, the compound curcumin found in turmeric is known for its anti-inflammatory and antioxidant properties which can help with workout recovery, reducing joint pain and improving overall performance.

Research has shown that turmeric may suppress inflammation by inhibiting the formation of pro-inflammatory molecules triggered during strenuous workouts or muscle strain.

Additionally, consumption of curcumin via either food or supplements can significantly reduce post-workout inflammation while supporting joint health.

For this reason, CrossFit athletes often incorporate both dietary sources of turmeric as well as Curcumin supplements into their routine in order to reap maximum benefits from their intensive training sessions.


Multivitamins are an essential supplement for CrossFit athletes, as they can provide the necessary vitamins and minerals to help support overall health and performance.

Multivitamins have B vitamins, vitamin C, iron, zinc, magnesium, and calcium for energy during exercise, vitamin D for healthy bones and digestion, omega-3 for recovery, and probiotics for immunity.

Regularly taking a multivitamin can provide essential nutrition and aid in muscle repair after intense exercise by providing antioxidants.

Multivitamins aid muscle growth and recovery time in CrossFit training. They help athletes refuel with quality nutrients, including fats, proteins, and green vegetables. This helps maintain health and energy for everyday activities and pursuing success.

Citrulline Malate

Citrulline malate is an ingredient that combines the non-essential amino acid citrulline and Krebs cycle intermediate, making it a beneficial supplement for CrossFit athletes. It has become popular as a pre-workout supplement for its strength and endurance boosting benefits.

Although there is no specified dosage recommendation, Citrulline malate in different forms, like CM and L-citrulline have been shown to be beneficial under certain circumstances.

This supplement has many benefits for CrossFit training: more power, better performance, quicker recovery, less soreness, and improved sleep.

Additionally, it can help improve post-workout recovery time by increasing protein metabolism and reducing lactic acid buildup.

Plus it supports cardiovascular health since it promotes blood flow through channels throughout the body, thus improving oxygen supply to muscles.

N-3 Fats

N-3 fats, also known as Omega-3 fatty acids, are essential to any CrossFit athlete’s supplement regimen. These fats have been associated with numerous potential health benefits and contribute to athletic performance in various ways.

Supplementation is often recommended to ensure adequate intake for athletes engaging in high-intensity training activities like CrossFit.

These heart-healthy unsaturated fats are abundant in fish such as salmon and mackerel, making them one of the best dietary sources of EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid).

Not only do these omega-3 fatty acids support overall health by reducing inflammation levels throughout the body, but they can also help improve cardiovascular health.

In addition to this, they have been found to benefit muscle recovery among athletes engaged in intense exercise activities like Crossfit.

ZMA (Zinc, Magnesium, B Vitamins)

ZMA is an essential supplement for CrossFit athletes, comprising zinc, magnesium, and vitamin B6. These three components work synergistically to help boost strength, power production, and optimize sleep.

ZMA has been extensively researched and proven to positively affect muscle gains and recovery. Studies show that 35-45% of adults do not get proper zinc intake in their diets, while over 70% are thought to be chronically deficient in magnesium.

With ZMA supplements being third-party tested for quality and effectiveness, this can ensure all athletes receive the adequate doses needed to maximize their benefits.

How to Select and Incorporate Supplements

Finding the right CrossFit supplements for your needs can be daunting, but understanding each supplement’s fundamentals and what may work best with your individual goals is key to optimizing performance.

Discover more about selecting and incorporating these essential supplements into a successful regime today!

Consulting with a healthcare professional

is one of the most important steps when incorporating accessories into CrossFit training. It’s critical to understand any potential side effects, how they interact with other medications or supplements, and find out which ones are the best options depending on an individual’s fitness goals before starting supplementation.

Professional recommendations can help ensure that proper dosing guidelines and safety precautions are met; for example, low doses may be sufficient if you have a pre-existing medical condition, and certain supplements might not be appropriate based on gender or age.

Consulting with a healthcare professional provides insight into individual body metrics, such as heart rate or blood pressure, so adjustments can be made in terms of supplement dosage over time should needs change.

Proper timing and dosage

When it comes to supplement usage for CrossFit, proper timing and dosage are essential. Proper dosing ensures that you get the most out of your supplementation without putting yourself at risk for any potential side effects or adverse reactions.

It is important to follow label instructions and recommended dosage guidelines to optimize performance benefits while safely utilizing supplements as part of a healthy diet.

  1. CaffeineRecommended dosage ranges from 0.5-1.4 mg/lb/day (1–3 mg/kg/day). Optimal timing ranges from 45 minutes before training up until 2 hours after the activity has been completed, depending on caffeine tolerance levels and individual goals.
  2. Omega-3: Dosage should range between 2-3 grams per day, taken with meals or snacks throughout the day to reduce inflammation and improve muscle recovery times post-workout.
  3. Nitrate: Before exercise, aim for 5-7mmol, equivalent to roughly 250-300g daily. They should be taken 30 minutes before each workout session to receive maximal benefit.

Monitoring and adjusting based on personal results

With CrossFit, as with any regimen, it is vital to monitor and adjust your supplement intake based on personal results. Tracking progress allows individuals to determine if their supplementation plan is working appropriately and if adjustments are needed in order to optimize their results.

Supplementing safely can help maximize the effects of training; however, each person must keep accounting for his or her own individual needs when monitoring progress.

For instance, a person engaging in high-intensity workouts should be aware that different supplements may affect him/her differently than another athlete doing low-intensity exercises.

To track the effectiveness of supplements, look for changes in performance, endurance, energy levels, and keep records of thoughts and sleep patterns. This applies to both those building muscle mass and those striving for leaner bodies.


CrossFit athletes have a range of supplements available to them that can benefit their training and performance. The essentials include Creatine Monohydrate, Beta-Alanine, BCAAs, Fish Oil, and Protein Powder.

Each of these offers particular benefits that are backed by scientific research. However it is important for each athlete to carefully consider individual goals and evaluate how specific supplements will impact their own body composition and health status.

Consulting with a healthcare professional or nutritionist can provide further expert assistance when making informed decisions on supplementation options for the best outcomes from CrossFit activities.

Furthermore, quality brands should be selected as they guarantee high standards in the production process resulting in effective outcomes to boost athletic performance safely without any unwanted side effects.


What are the best supplements for Crossfit?

The top recommended supplements for Crossfit athletes include whey and other forms of protein, creatine, beta-alanine, branched-chain amino acids (BCAAs), fish oil and multivitamins.

How can these supplements help improve performance during workouts?

Supplementation helps to ensure that there is an adequate level of each nutrient in the body prior to beginning a workout which aids in helping to maintain energy levels throughout the entire routine so that peak performance can be achieved faster and more consistently than without them.

Additionally, they may even have positive effects on recovery time following intense exercise sessions as well by providing the necessary nutrients needed for proper healing processes.

Are there any side effects associated with supplementing?

It’s possible to have adverse reactions or allergies to medications and dietary supplements. Always check labels and ensure they’re safe for your medical conditions. If you experience discomfort after taking something new, stop using it immediately. As for taking multiple supplements together, it’s best to consult with a healthcare professional.

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