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Optimum Nutrition produces an award-winning range of premium products, including the world’s best-selling protein powders Gold Standard 100% Whey and Casein, renowned for their ease of mixing and great tasting flavours. We pride ourselves on only using the very best ingredients, so that you only put the best into your body and achieve maximum results.


Ever since Optimum Nutrition was first launched over 25 years ago, our customers have always been our number one priority and always will be. We are committed to rewarding your custom with excellent service and everyone in the company is dedicated to exceeding your expectations.


  • What do multivitamins do for active adults?

    Vitamins and minerals support overall health in numerous ways. Known collectively as micronutrients, they help your body break down and process the macronutrients protein, carbohydrates and fat. Vitamins and minerals also have an impact on your physical and mental performance. One example can be seen in potassium that assists with muscle contractions. You can see how active individuals have greater micronutrients needs than their less active counterparts.

  • Are fats important to sports performance?

    There are different types of fats, some of which are vital to a number of metabolic functions. Essential fatty acids are called ‘essential’ because your body can’t produce them. They can only be taken in through diet. In addition to their roles in hair, skin and nail health, they assist with numerous metabolic functions and can be used to fuel extended endurance exercise as your body will burn fat in the absence of carbohydrates. Your body can also convert certain amino acids into energy, so it’s important for endurance athletes to protect their muscle tissue by supplementing with Branched Chain Amino Acid (BCAA) and/or protein supplements.

  • What role do carbohydrates play?

    Where proteins provide muscle rebuilding support, carbohydrates provide energy to fuel training and competition. Your body’s preferred source of energy is a carbohydrate-replenished polysaccharide known as glycogen. Fast carbs are best for replenishing it after training or competing while fueling up for exercise is best handled with slow-burning carbs from whole grains or vegetables that can provide sustained energy.

  • Why are there so many types of protein supplements?

    The successful application of sports nutrition is all about timing. You want to use a fast-acting whey protein before and/or after training, while a slowly digested casein protein is better suited to between meals and before bed use. Specialized proteins are formulated for lactose sensitive (egg) and vegetarian (soy) consumers, and there are protein blends made for performance as well as taste and convenience. For more details on protein types and timing visit ProteinReport.com

  • If a little protein is good, is more better?

    Not necessarily. The general recommendation for protein intake for active individuals is one gram per pound of body weight. So if you weigh 68 kg (150 lbs) you should try to consume 150 grams of protein per day through whole foods and protein shakes. If your goal is to gain weight you might try for a greater amount, and if you’re trying to lose weight, it might be a little less. To determine the right amount for your needs, record everything you eat and drink in a journal and measure your progress week to week, month to month. Increase or decrease protein, cabs and exercise as necessary.

  • Why is protein so important?

    Protein contains amino acids which serve as the building blocks of muscle tissue. Muscles are broken down from the stress of training and rebuild bigger and stronger with help from amino acids and enough time away from training to facilitate recovery.

  • What is sports nutrition?

    Sports nutrition supplements a healthy balanced diet to fuel optimal performance, whether training or competing. The category is quite broad ranging from protein powders and ready to drink shakes to energy bars, vitamins, minerals and other products.

  • What is meant by the phrase ‘eating like a bodybuilder’?

    Consuming 6 or 7 small meals throughout the day provides several benefits to active individuals. First, the metabolism is forced to keep processing food and subsequently burning calories. Second, your muscles are fed a near continuous stream of amino acids for rebuilding, and carbohydrates are delivered throughout the day for energy. Although the technique was originally developed by bodybuilders, any anyone interested in losing fat and gaining muscle mass can apply the practice provided they remain active and do not increase the overall calories. Total daily food consumption remains the same; the calories are simply divided over a larger number of smaller meals spaced 2 to 3 hours apart throughout the day.

  • What is creatine and why do so many athletes use it?

    Creatine is an organic acid manufactured by your body using the amino acids arginine, glycine and methionine. These compounds are found in meat, but would be impractical to consume in the quantities needed to elevate physical performance. Creatine monohydrate is one of the most thoroughly studied performance supplements, and has demonstrated a capacity for improving muscle size and strength.

  • What is a ‘stack’?

    Bodybuilders refer to the mixing of several supplements as a ‘stack’. A very common post-workout stack is a flavored whey protein powder mixed in water with unflavored creatine powder. By combining these complementary supplements, you have the potential to reap greater rewards than you would using either of the components individually. A stack might include food (example: using an electric blender to grind a banana and almonds into a chocolate casein protein shake), and can also be spread throughout the day (example: whey protein pre-workout, multivitamin with lunch, casein protein before bed). The possibilities are limited only by your imagination.

  • How important is hydration to active individuals?

    The importance of maintaining adequate hydration cannot be understated. It has been estimated that as little as 2% dehydration can have an adverse effect on athletic performance. TIP: Because flavored beverages promote frequent drinking, a pre-workout mix and even your protein shakes can have a measurable impact on your overall state of hydration. Think of them as useful complements to the volume of water you intake.