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About Us
We Are MJ Fitness
A fitness lifestyle company based in Adelaide, South Australia, dedicated to helping & inspiring all people to improve their lives through health & fitness by providing products, information & experiences.
We offer a wide range of fitness & health supplements from the World's best brands at the guaranteed best prices in the country. From protein powders and pre-workouts to amino acids, vitamins, creatine, superfoods and fat burners, we have all of the supplements you need to support your health & fitness goals.
In addition to our extensive supplement range, we pride ourselves on our excellent customer service and fast delivery times with express shipping available on all orders across Australia and free shipping available on orders over $150.
We also offer a free sample with every order, a free loyalty program that enables you to earn discounts on future orders, a number of different buy now, pay later options, and a price beat guarantee.
Whether you're just starting out on your health & fitness journey or you're an experienced athlete, we welcome you into the MJ Fitness community.
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Our Newest Supplement Articles

The Great Protein Showdown: Whey, Collagen, Plant-Based & Food Proteins.
You canโt get swole without protein. Itโs a fact. Anyone will tell you that the way to build muscle starts with protein. The best part about protein is you have multiple sources to choose from. Today weโre breaking down four popular options: whey, collagen, plant based and meat proteins. Whey Protein Powder Whey protein is the favourite when it comes to protein powder. You hear someone say โprotein powderโ and this is usually what theyโre talking about. Containing all nine essential amino acids, whey protein is ideal complete protein for any athlete looking to boost their gains and recovery. Typical servings of whey protein give you 20-25 grams, with less than 5 grams of carbs and fats. However, whey protein is derived from milk, meaning it can cause digestive discomfort to lactose intolerant people. Depending on your sensitivities, you may be able to switch to a whey protein isolate, which takes out over 90% of the lactose, but those with severe lactose intolerance or milk allergies should use caution. Plant-Based Protein Powder If youโre avoiding animal based products, plant-based proteins are perfect. Coming from peas, watermelon seeds, soy, pumpkin, and various other vegan sources. Some of these are a complete protein, like soy, where others combine different sources to create the full amino acid profile. With the addition of being easier on the stomach, especially for people that canโt have whey, plant proteins also have extra nutrients like fiber, antioxidants and healthy fats. Per serving, youโll get around 15-20 grams of protein, with 2-10 grams of carbs and fats. The downside to all that is that plant proteins have been seen to have slightly less bioavailability compared to animal based proteins. However, this is lessened with complementary plant proteins like rice and pea. Theyโre also widely known for their grittier texture when in a shake, but blends are becoming better as time goes on. Collagen Protein Powder Collagen is becoming more and more popular due to its benefits to skin, joints and tendons. Being rich in glycine, proline and hydroxyproline, itโs great for supporting joint and skin health. However, collagen proteins are not a complete protein, lacking in tryptophan, an essential amino acid. A usual serving gets you 10-15 grams of protein, with low fats and carbs. It wonโt contribute to muscle growth as much as other protein sources. However, itโs perfect for those wanting to focus on their skin and joint health. Collagen powders mix very well, so they can be mixed into a smoothie or shake. Meat If youโre looking to get your protein in, the main source that you should be looking at is food. Animal based proteins from meat sources are packed with essential amino acids and are easily absorbed by the body. Meat sources like beef, fish and chicken are big players in any high protein diet looking for muscle building and recovery. 85g-100g of meat provides anywhere from 20-30 grams of protein, with varying fats and carbs, depending on the cut of meat. With a generous amount of protein, meats also contain nutrients like iron, zinc and vitamin B12. While meat is nutrient dense, itโs the least convenient protein source because it needs to be cooked. It also raises concerns with those who prefer less animal products in their diet. Plant-Based Foods If youโre not a fan of meat, there are still options for food thatโs high in protein. Plant based foods like tofu, tempeh and legumes are additions to your diet that give you the meat free protein hit. As an example, 100g of extra-firm tofu gives you 10g-12g of protein. Much like their animal counterparts, these protein sources also require a bit of time to prepare, but theyโre faster to prepare and they offer a great alternative to meat. Which Protein Source Reigns Supreme? When it comes to protein, thereโs no shortage of where you can find it. Each source has its own benefits and factors to consider. The best choice of protein source depends on your diet, goals and preferences. Make sure to do your research and youโll be kicking goals in no time.
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The Great Protein Showdown: Whey, Collagen, Plant-Based & Food Proteins.
You canโt get swole without protein. Itโs a fact. Anyone will tell you that the way to build muscle starts with protein. The best part about protein is you have multiple sources to choose from. Today weโre breaking down four popular options: whey, collagen, plant based and meat proteins. Whey Protein Powder Whey protein is the favourite when it comes to protein powder. You hear someone say โprotein powderโ and this is usually what theyโre talking about. Containing all nine essential amino acids, whey protein is ideal complete protein for any athlete looking to boost their gains and recovery. Typical servings of whey protein give you 20-25 grams, with less than 5 grams of carbs and fats. However, whey protein is derived from milk, meaning it can cause digestive discomfort to lactose intolerant people. Depending on your sensitivities, you may be able to switch to a whey protein isolate, which takes out over 90% of the lactose, but those with severe lactose intolerance or milk allergies should use caution. Plant-Based Protein Powder If youโre avoiding animal based products, plant-based proteins are perfect. Coming from peas, watermelon seeds, soy, pumpkin, and various other vegan sources. Some of these are a complete protein, like soy, where others combine different sources to create the full amino acid profile. With the addition of being easier on the stomach, especially for people that canโt have whey, plant proteins also have extra nutrients like fiber, antioxidants and healthy fats. Per serving, youโll get around 15-20 grams of protein, with 2-10 grams of carbs and fats. The downside to all that is that plant proteins have been seen to have slightly less bioavailability compared to animal based proteins. However, this is lessened with complementary plant proteins like rice and pea. Theyโre also widely known for their grittier texture when in a shake, but blends are becoming better as time goes on. Collagen Protein Powder Collagen is becoming more and more popular due to its benefits to skin, joints and tendons. Being rich in glycine, proline and hydroxyproline, itโs great for supporting joint and skin health. However, collagen proteins are not a complete protein, lacking in tryptophan, an essential amino acid. A usual serving gets you 10-15 grams of protein, with low fats and carbs. It wonโt contribute to muscle growth as much as other protein sources. However, itโs perfect for those wanting to focus on their skin and joint health. Collagen powders mix very well, so they can be mixed into a smoothie or shake. Meat If youโre looking to get your protein in, the main source that you should be looking at is food. Animal based proteins from meat sources are packed with essential amino acids and are easily absorbed by the body. Meat sources like beef, fish and chicken are big players in any high protein diet looking for muscle building and recovery. 85g-100g of meat provides anywhere from 20-30 grams of protein, with varying fats and carbs, depending on the cut of meat. With a generous amount of protein, meats also contain nutrients like iron, zinc and vitamin B12. While meat is nutrient dense, itโs the least convenient protein source because it needs to be cooked. It also raises concerns with those who prefer less animal products in their diet. Plant-Based Foods If youโre not a fan of meat, there are still options for food thatโs high in protein. Plant based foods like tofu, tempeh and legumes are additions to your diet that give you the meat free protein hit. As an example, 100g of extra-firm tofu gives you 10g-12g of protein. Much like their animal counterparts, these protein sources also require a bit of time to prepare, but theyโre faster to prepare and they offer a great alternative to meat. Which Protein Source Reigns Supreme? When it comes to protein, thereโs no shortage of where you can find it. Each source has its own benefits and factors to consider. The best choice of protein source depends on your diet, goals and preferences. Make sure to do your research and youโll be kicking goals in no time.
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Why Does My Fat Burner Make Me Hot?
Have you ever taken a fat burner and noticed you get a bit warm, start sweating bullets, or notice your heart rate increase slightly? Then youโve just experienced thermogenesis firsthand. Youโve probably seen on your fat burner tub something like โThermogenic blendโ, but what causes thermogenesis? Does it actually translate to fat loss? Let's find out. Whatโs Thermogenesis? Thermogenesis is your bodyโs natural heat production. The fuel for this fire is calories. Pairing that with a calorie deficit, and hard training, youโve got a one-way ticket to lean-ville.ย When supplement companies found this out, they packed their fat burners with ingredients that amplify it.ย Caffeine: The King Of Thermogenesis Caffeine is the champion of thermogenics, itโs in the majority of your fat burners for a reason. Stimulating the nervous system and kickstarting lipolysis, the breakdown of stored fat for energy. Studies say that depending on dosages and tolerances, it can boost metabolic rate by 3-11%. Plus, it has the added benefit of giving you a boost of energy. One thing to look out for is your body adapting to caffeine over time, which can reduce its effects. If your fat burner has a heavy hit of caffeine, make sure youโre cycling it so that its thermogenic effects stay strong. Capsaicin: Turning Up The Heat Ever noticed that you get a bit sweaty when youโre eating spicy food? Thatโs capsaicin working its magic. Found in chilis and other spicy foods, this compound activates receptors that signal the body to produce heat. Research shows that capsaicin can increase the calories you burn at rest, as well as help burn fat. This makes it a powerful thermogenic in fat burners. Unlike caffeine, you donโt build up a tolerance for capsaicin. Itโs also been shown to reduce appetite. Itโs a two-for-one deal! One thing to look out for is higher dosages can cause digestive discomfort. Green Tea Extract: A Heated Sidekick Green tea extract, specifically EGCG (epigallocatechin gallate), an antioxidant found in most teas, works with caffeine to enhance thermogenesis. This combo stops the breakdown of norepinephrine, a hormone that helps your body break down fat. When by itself, the fat oxidation of green tea extract is relatively mild. However, when mixed with caffeine, green tea extract saw a 17% boost in fat oxidation. In most stim fat burners, youโll see these two paired together. Synephrine: The Safer Ephedrine Alternative? If you go way back, youโll probably see a few pre-workouts and fat burners with ephedrine, a powerful stimulant and metabolism booster. Due to multiple heart health issues that it caused, it was banned. Synepherine, found in bitter orange extract, has been found to mildly mimic those fat burning effects, without the risk of a heart attack. Even though it has effects on its own, thereโs some research that suggests synephrine is most effective when combined with other stimulants, like caffeine. This makes a heightened thermogenic effect, but be careful with dosages, as stacking stimulants can risk more side effects. Do Thermogenics Work? Putting it short: yes, but it isnโt going to do it magically. Thermogenics can boost the calories and fat you burn, but you canโt supplement your way out of a poor diet and lack of exercise. Treating thermogenics as an enhancement to your diet and training will make them shine the brightest. Remember to be safe with stimulants, and monitor your intake to mitigate side effects. Happy burning!
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How To Properly Fuel Your Workouts
Ever noticed that your body seems to hill a wall mid workout? Youโre lifting heavy, having a good time, and suddenly you feel sluggish and weak. Thatโs your body saying โHey, Iโve got no fuel left!โ. Having no fuel doesnโt mean that you need to go smash protein bars at your gym counter to get back in the game. There are some supplements that you can throw in a shaker and have during your workout thatโll give you a boost in performance, help with recovery, and stop fatigue in its tracks Essential Amino Acids (EAAs) Probably the most popular intra-workout supplement, amino acids come from proteins that your body digests. This makes them perfect for muscle repair and growth. EAAs are nine amino acids that the body canโt make on its own. We get these EAAs from our diet, or in this case supplementation. Among the nine EAAs, are BCAAs. leucine, isoleucine and valine have been studied to have recovery benefits when in a 2:1:1 ratio (2g of leucine for every 1g of isoleucine and valine)ย ย When you workout, your body breaks down the protein in your muscle into amino acids. Supplementing with amino acids, especially when your protein intake is low, can give your body a better environment to maintain muscle, or even grow. BCAAโs help by promoting muscle protein synthesis, helping your body recover quicker from those hard workouts. Carbohydrates (Carbs) When youโre training hard, your bodyโs energy comes from carbs. These carbs are stored in the muscles and liver as glycogen. When you exercise, the glycogen in your muscles are broken down to give you a steady pace of energy. You only have a limited supply, and once you run out, fatigue comes in and your performance drops. Throwing in some fast digesting carbs into your intra workout stack can refuel the glycogen storage whilst you're working out. Keeping glycogen up when your training can keep your body sustaining energy, get your endurance up and maintain that high intensity you started the session with. Electrolytes If you ever train in a hot and humid environment, and youโre sweating bullets, youโre losing electrolytes. Sodium, potassium and magnesium are minerals that have big parts to play in nerve function, muscle contractions and hydration. When youโre sweating through your shirt and not keeping your electrolytes up, youโll start to see muscle cramps, a decrease in performance and dysregulated body temperature. Incorporating an intra workout that contains electrolytes replenishes the lost minerals, helping your performance and preventing dehydration. Additional Beneficial Ingredients It doesnโt just stop at amino acids, carbs or electrolytes. Here are a few additions to look out for in your next intra workout supplement that can enhance your training: Citrulline: A big part in blood flow and muscle pumps, citrulline can also help with nutrient delivery and waste removal. Creatine: A big player in the production ATP, adding creatine during your workouts can raise your strength and power during those grueling sessions. Conclusion Adding in some intra workout supplements to your stack can give your body the fuel to get through those heavy, gruelling workouts. By enhancing performance, keeping energy levels up and helping with recovery, a blend of carbs, amino acids, electrolytes and other ingredients that support performance, youโll be able to run circles around the competition.
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