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Description

Versatile Anytime Energy, Focus, and Amino Acid Support

Looking for a clean, customizable way to elevate your focus and stay on top of your training goals? Optimum Nutrition Amino Energy is a highly versatile, best-selling powder formula designed for athletes, gym-goers, and active individuals across New Zealand. Combining essential amino acids with naturally sourced caffeine, it offers a refreshing drink that fits seamlessly into any part of your daily routine.

Whether you want a light morning pick-me-up, an intra-workout endurance companion, or a crisp, sugar-free alternative to standard coffee, this premium formula delivers exactly what you need without the unnecessary calories.

Why Choose Optimum Nutrition Amino Energy Powder?

  • Essential Amino Acid Delivery: Packed with 5g of micronized amino acids per serving, including BCAAs, to support muscle tissue maintenance and recovery before, during, or after exercise.

  • Naturally Sourced Caffeine: Features 100mg of caffeine per serving derived from green tea and green coffee bean extracts for clean alertness and sharp mental concentration.

  • Completely Customizable Serving Size: Dial your intake up or down based on your schedule. Use 2 scoops for a mild afternoon boost, or scale up to a full multi-scoop pre-workout serving for intensive training sessions.

  • Zero Sugar & Low Calorie: Contains only 10 calories per serving and absolutely zero sugar, making it the perfect choice for calorie-conscious fitness meal plans or lean muscle phases.

  • Excellent Mixability & Refreshing Flavors: Dissolves quickly and smoothly in cold water, giving you a refreshing, crisp drink available in a wide selection of fruit flavors.

How to Use

  • Mix 2 level scoops (9g) of Amino Energy with 300–400ml of cold water in your shaker.

  • For an Anytime Amino Boost: Take first thing in the morning or between meals.

  • For Pre-Workout Training Support: Consume 1–3 servings 20–30 minutes before heading to the gym or field.

  • Usage Tip: To avoid disrupting your evening rest, avoid consuming late in the day due to the natural caffeine content.


Frequently Asked Questions

Can Optimum Nutrition Amino Energy be used as a pre-workout? Yes. Thanks to its customizable serving size, it functions excellently as a mild, focused pre-workout. While lighter on stimulants than high-intensity pre-workouts, increasing the scoop count provides a clean boost to physical endurance and training focus.

How much caffeine is inside a standard serving? A standard 2-scoop serving contains 100mg of natural caffeine sourced from green tea and coffee beans, which roughly aligns with the caffeine content of a standard premium cup of coffee.

Does this product contain sugar? No. Optimum Nutrition Amino Energy is completely sugar-free and carries only 10 calories per serving, allowing you to hit your daily macro requirements without drinking empty calories.

Can I take this product every day? Yes, it is perfectly suited for daily use by healthy adults. Simply monitor your overall daily caffeine intake from other sources like coffee, tea, or soda to stay within your personal comfort thresholds.

Facts

Available Sizes:
Container Size:  270g
Serving Size:  2 Scoop (9g)
Servings Per Container:  30

Container Size:  585g
Serving Size:  2 Scoop (9g)
Servings Per Container:  65

Directions:
For An Amino Boost: Consumer one or more servings first thing in the morning and/or between meals.
For Pre Workout Energy: Take 1-3 servings 20-30 minutes before training.
For Post Workout Recovery: Take 1-2 servings immediately after training.

 

Please Note: Nutritional Information is to be used as a guide only, actual values may differ between flavours and sizes and when formulations are modified or updated by the manufacturer. 
Contact us if you have any questions regarding this products ingredients.

Shipping

All orders $60 and over receive Free* Shipping Nationwide 

Final pick up each day is at 3.45pm Monday to Friday. 

Estimated Delivery Times*:

Auckland and North Island – Overnight

*During sale periods, please allow an additional 1–2 business days for dispatch due to high order volumes.

However many Auckland orders will be delivered the same day depending on what time the order is placed

South Island – Overnight (For larger parcels allow 2 business days)

Same Day/Evening Express Shipping upgrade available at checkout for select suburbs*

Click here to view the full Shipping Details and Returns Policy.

 

Optimum Nutrition Amino Energy Reviews

4.8/5 based on 213 reviews
5 star
(185)
4 star
(24)
3 star
(4)
2 star
(0)
1 star
(0)

Overall Rating

9.6 /10

213 Ratings

Average Flavour Rating

9.4 /10

17 Flavours

Top Rated Flavour

10 /10

Grape


5/5
Faith Published Thursday, 5 February 2026

10/10 Blue Raspberry

10/10 Watermelon

9/10 Grape

These are my go-to's for pre and during workouts. Refreshing and a good boost. The flavours are nicely balanced so it doesn't taste too fruity and sweet.
5/5
Ellie Published Thursday, 1 January 2026

10/10 Rainbow Sherbet

I love this stuff. Gives me the energy I need for an early morning workout with giving me the jitters. This flavour is delicious.
5/5
Ash Published Thursday, 25 December 2025

10/10 Orange

10/10 Fruit Fusion

10/10 Watermelon

Taste pretty good easy to use
4/5
Ryan Published Thursday, 27 November 2025

9/10 Green Apple

Tastes great. 3 of the 4 people I gave a serving to loved it.
4.5/5
George Published Thursday, 16 October 2025

10/10 Orange

9/10 Green Apple

2/10 Blue Raspberry

5/10 Fruit Fusion

6/10 Watermelon

Stable morning workout energy. Ideal for morning fasted workouts to give you BCAAs and steady energy without the crazy tingles. Orange tastes good.
4/5
James Published Friday, 10 October 2025

10/10 Orange

First time trying this flavour, don’t mind it would purchase again
5/5
Jeremy Published Thursday, 11 September 2025

10/10 Grape

Great taste and value for money
5/5
Emily Published Thursday, 7 August 2025

10/10 Tropical Sunrise

The best flavour
5/5
Deb Published Friday, 18 July 2025

10/10 Tropical Sunrise

This drink gave me the energy I needed and it tastes so good. Delivery was fast, thanks!
5/5
Steph Published Thursday, 20 March 2025

10/10 Tropical Sunrise

This is a game changer! I felt the effect almost immediately. I bought this to help with my low energy levels with peri-menopause on a friends recommendation. No mire afternoon naps. And delicious too!