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Optimum Nutrition

Amino Energy+Electrolytes

Price $39.96 Save 20% RRP ~~$49.95~~

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Price $39.96 Save 20% RRP ~~$49.95~~

You'll Earn pts

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Optimum Nutrition Amino Energy plus Electrolytes is the powdered version of the brand's anytime energy drink. Each serve carries a 5 gram blend of fourteen micronised amino acids, 100 mg of caffeine from green tea leaf and green coffee bean, and a 440 mg electrolyte blend, for 5 calories and no sugar. It comes as four flavours: Juicy Strawberry, Pineapple, Tangerine and Watermelon. Mixed with cold water, it is used as an afternoon pick-up or before a lighter session, with the electrolytes there for training that brings on a heavy sweat.

Product Strengths

Counts towards the day's caffeine intake alongside coffee and other sources.
Tops up the day's amino acid intake.
5 g blend of fourteen micronised amino acids per serve.
100 mg caffeine from green tea leaf and green coffee bean.
440 mg electrolyte blend with magnesium, sodium and potassium.
21 kJ (5 calories) and 0 g sugars per serve.

Suitable For / Not Suitable For

Suitable for: Active adults and athletes.

Not suitable for: Anyone with an allergy to the listed ingredients; Children and women who are pregnant or breastfeeding (contains caffeine).

Ingredients

Each serve of two scoops (9.5 g) contains	Amount
Amino acid blend	5 g
Caffeine	100 mg
Electrolyte blend (sodium chloride, magnesium oxide, potassium chloride)	440 mg
Magnesium	60 mg
Sodium	105 to 115 mg
Potassium	45 mg
Chloride	190 to 200 mg
Energy	21 kJ (5 Cal)
Carbohydrate	1 g
- sugars	0 g

The amino blend contains micronised taurine, L-glutamine, L-arginine, L-leucine, beta-alanine, L-citrulline, L-isoleucine, L-valine, L-tyrosine, L-histidine, L-lysine hydrochloride, L-phenylalanine, L-threonine and L-methionine. Also contains citric acid, malic acid, natural and artificial flavour, calcium silicate, silicon dioxide, a gum blend, sucralose, acesulfame potassium and sunflower and/or soy lecithin. Colours and flavouring vary between flavours.

Suggested Use

Mix two scoops (9.5 g) into 300 to 355 mL of cold water for about 30 seconds until dissolved. Drink first thing in the morning, before exercise, as an afternoon lift or at any time of day.

Cost Per Serve

Pack size	270 g (28.4 serves)
Serving size	1 serve
Serves per pack	28.4
Price	$45.54
Cost per serve	$1.60

Cost per serve is approximate and based on the current price.

Allergens

Contains: soy. Always review label for full list of ingredients.

Storage

Store in a cool, dry place with the lid firmly closed. Do not use if the seal is broken.

Disclaimer

Formulated supplementary sports food. This product is not a sole source of nutrition and should be used in conjunction with an appropriate physical training or exercise programme. Not suitable for children under 15 years of age or pregnant women. Should only be used under medical or dietetic supervision. Always read the label and use only as directed.

Ingredients

Juicy Strawberry Burst:
Amino Blend 5g **
Micronized Taurine, Micronized L-Glutamine, Micronized L-Arginine, Micronized L-Leucine, Beta- Alanine, Micronized L-Citrulline, Micronized L-Isoleucine, Micronized L-Valine, Micronized L-Tyrosine, Micronized L-Histidine, Micronized L-Lysine Hydrochloride, Micronized L-Phenylalanine, Micronized L-Threonine, Micronized L-Methionine
Caffeine (From Natural Sources) 100mg **
Green Tea Leaf Extract 50mg **
Green Coffee Bean Extract 10mg **
Other Ingredients: Citric Acid, Malic Acid, Natural and Artificial Flavor, Silicon Dioxide, Calcium Silicate, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Sucralose, Sunflower and/or Soy Lecithin, Beet Juice Powder (color), Acesulfame Potassium, Blue 1.

Watermelon:
Amino Blend 5g **
Micronized Taurine, Micronized L-Glutamine, Micronized L-Arginine, Micronized L-Leucine, Beta- Alanine, Micronized L-Citrulline, Micronized L-Isoleucine, Micronized L-Valine, Micronized L-Tyrosine, Micronized L-Histidine, Micronized L-Lysine Hydrochloride, Micronized L-Phenylalanine, Micronized L-Threonine, Micronized L-Methionine.
Other Ingredients: Natural and Artificial Flavor, Malic Acid, Citric Acid, Silicon Dioxide, Calcium Silicate, Sucralose, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Tartaric Acid, Sunflower and/or Soy Lecithin, Beet Juice Powder (color), Inulin.

Pineapple:
100 mg Caffeine from Natural Sources, 5 g amino acid blend.

Tangerine:
5g Amino Blend, Citric Acid, Natural and Artificial Flavor, Malic Acid, Tartaric Acid, Silicon Dioxide, Calcium Silicate, Sucralose, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), Sunflower and/or Soy Lecithin, Blue 2, Inulin.

Suggested dose

Mix about 2 scoops into 10 to 12 fluid ounces of cold water first thing in the morning, before exercise, as an afternoon pick-me-up or any time of day.

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Electrolytes

What do electrolytes do?

Electrolytes help you replace the salts you lose when you sweat hard or lose fluid to a stomach bug. An oral rehydration sachet is made to a set formula for exactly that.

Christina Hanley, BHSc (Nutritional Medicine), Digital Experience & Content Manager, Mr Vitamins

Christina HanleyBHSc (Nutritional Medicine), Digital Experience & Content Manager
Checked this page September 2026

See what we checked

Is Electrolytes right for you?

Many people reaching for electrolytes don't actually need them, and those who do often need a different product from the one they picked up. These are the questions our naturopaths ask in store.

A good fit if

You're losing fluid through vomiting, diarrhoea or heavy sweating
You're training long or hard in the heat and plain water isn't enough
You want an oral rehydration sachet for the medicine cabinet
You've been advised to change your balance of sodium to potassium

Check with us first if

You have kidney disease, because your body handles potassium differently and potassium taken by mouth can build up.
You take heart or blood pressure medicine, especially an ACE inhibitor.
You're buying for a young child or an older person who's unwell.
You already take a potassium or magnesium supplement.
You're using electrolytes for cramps, where the evidence is genuinely mixed.

How the forms compare

Oral rehydration salts (ORS). Best known for: Illness: vomiting, diarrhoea, and getting a child rehydrated. Absorption: Made to a WHO and UNICEF formula for sodium, potassium, glucose and concentration (osmolarity). Typical use: The only electrolyte format whose make-up is set in Australian law.
Sports hydration powders. Best known for: Training and sweating in hot weather. Absorption: What is in them varies hugely by brand, and they are often built around flavour. Typical use: Check the sodium figure. It is the one doing the work.
Effervescent tablets. Best known for: Convenience, and a measured dose in every tablet. Absorption: Dissolved before you drink it, so there is no powder to scoop. Typical use: Watch the potassium per tablet if you take heart or blood pressure medicine.
Ready-to-drink bottles. Best known for: No mixing. Absorption: The same salts, with more packaging and usually more sugar. Typical use: Convenient rather than different.
Plain sodium chloride (item 4581). Best known for: Table salt, allowed in listed medicines with no conditions at all. Absorption: The simplest sodium source there is. Typical use: Worth remembering before you reach for a branded blend.

Common questions

Do I need electrolytes, or is water enough?

For ordinary days, water is enough. Electrolytes matter when you're actually losing salts, through heavy sweating, vomiting or diarrhoea. Plain water after a big sweat replaces the fluid but not the sodium, which is why rehydration products exist. If you're not losing salts, you're mostly just drinking flavoured water.

What's the difference between a rehydration sachet and a sports powder?

The sachet is made to a formula. Australian law requires oral rehydration products to match the British Pharmacopoeia and the WHO and UNICEF criteria for sodium, potassium, glucose and concentration once mixed. A sports powder has no such standard and is usually made with taste in mind. When you're unwell, reach for the sachet.

Will electrolytes stop my cramps?

The evidence is genuinely mixed, and we'd rather tell you so. Thirteen randomised trials gave an inconsistent picture, and a Cochrane review of 11 trials found magnesium unlikely to prevent unexplained or night-time cramps in older adults. One trial did find a benefit. If cramps keep happening, it's worth a chat with us rather than another scoop.

How much, and when

Reference values. The NHMRC sets recommended intakes for sodium, potassium, magnesium and calcium one by one, rather than for electrolytes as a group. Ordinary food and drink covers them for most people, most of the time.

Typical supplemental range. Oral rehydration sachets are made to a set formula, with sodium, potassium, glucose and total concentration matching the WHO and UNICEF criteria once mixed. Sports powders vary much more, and sodium is the figure worth comparing. Australian law caps potassium chloride at 550 mg per dose unit in anything that isn't an oral rehydration product.

Upper level. No single upper limit applies to a blend. The firm numbers are for each ingredient: 550 mg of potassium chloride per dose unit outside oral rehydration products, and a 3.75% concentration limit for dental use.

Worth knowing. When you're unwell, the formula matters, and a rehydration sachet is the product made for it. For sweating, sodium is the number to compare. What you need depends on your age, diet and health, so talk to one of our naturopaths.

Food sources

Food first, where the diet allows it.

Table salt: the simplest sodium and chloride source
Fruit and vegetables: the main dietary potassium sources
Dairy, nuts and leafy greens: contribute calcium and magnesium

Before you start

If any of these sound like you, talk to one of our naturopaths or your doctor before you start.

You have kidney disease. Oral potassium chloride must carry an Australian warning about this. In chronic kidney disease the usual potassium-driven loss of sodium in urine does not happen, and potassium taken by mouth builds up.
You take heart or blood pressure medicines. Oral potassium chloride must carry an Australian warning about this, and ACE inhibitors change how your body handles potassium.
You are being treated for high blood pressure. A rise in blood pressure has been seen at high potassium intakes in people on blood pressure medicines.
Children. The required warning includes "Keep out of reach of children", and a dehydrated child needs a medical check.
Blends containing sodium sulfate. It must carry a laxative warning when it is not meant as a laxative.
You want electrolytes for cramps. The evidence is inconsistent, and magnesium in particular was found unlikely to help older adults.
If you take prescription medicines, check with your doctor, pharmacist or our naturopaths before you start.

The evidence, and its limits

Electrolytes carry an electrical charge in your body's fluids. They help keep fluid in the right places, fire nerves and make muscles contract. (Permissible Indications Determination)
Across 13 randomised trials, the results for electrolytes and muscle cramps were inconsistent. (DOI record)
A Cochrane review of 11 trials found magnesium is unlikely to prevent unexplained or night-time cramps in older adults. (DOI record)
In an NHMRC-funded trial of 20,995 people, swapping some dietary salt (sodium) for potassium reduced strokes and deaths. (Randomised controlled trial held in registers/electrolytes.m)
Across 32 trials, the link between potassium and blood pressure is U-shaped: more potassium is not always better. (PubMed 40612568)
Australian law caps potassium chloride at 550 mg per dose unit, except in oral rehydration products. (Schedule 1, item 4581)

How it works

Electrolytes are how your body decides where water goes. Sodium and chloride hold fluid in the space outside your cells, potassium does the same job inside them, and the difference between the two is what lets a nerve fire and a muscle contract. Plain water after heavy sweating replaces the water but not the salts, which is the whole reason rehydration products exist. Magnesium and calcium are usually extras in a blend rather than the reason it works.

The Australian rules

There is no Schedule 1 ingredient called "electrolytes". Each salt is listed separately, and they are treated very differently. Sodium chloride (item 4581) is allowed in listed medicines with no conditions and no warnings. Potassium chloride (item 4094) is the opposite: it is for use by mouth only, must carry a kidney and heart warning, and is capped at 550 mg per dose unit unless the product is for oral rehydration. Oral rehydration salts are the one format whose make-up is set in Australian law. They must meet the British Pharmacopoeia and the WHO and UNICEF criteria for sodium, potassium, glucose and concentration (osmolarity) once mixed. Sodium citrate and sodium acid citrate may only be taken by mouth as actives. Sodium sulfate must carry a laxative warning. Being allowed is not the government endorsing any product or claim.

Read the instrument: Schedule 1, item 4581.

Not sure this is the right form for you? Ask one of our naturopaths. It is free and takes 10 minutes.

Always read the label and follow the directions for use. General information only, and not a substitute for advice from your doctor or one of our naturopaths.

Amino Energy+Electrolytes

Shipping

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Terms and Conditions

Description

Product Strengths

Suitable For / Not Suitable For

Ingredients

Suggested Use

Cost Per Serve

Allergens

Storage

Disclaimer

ingredients

suggested dose

Product Strengths

Suitable For / Not Suitable For

Ingredients

Suggested Use

Cost Per Serve

Allergens

Storage

Disclaimer

Ingredients

Suggested dose

What do electrolytes do?

Is Electrolytes right for you?

Do I need electrolytes, or is water enough?

What's the difference between a rehydration sachet and a sports powder?

Will electrolytes stop my cramps?

How much, and when

Before you start

The evidence, and its limits

Reviews and Q&A

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