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Optimum Nutrition Amino Energy Review

by Ultimate Sup Staff on May 22, 2023

This Optimum Nutrition Amino Energy review will reveal everything about this ON supplement. 

Optimum Nutrition is without a doubt one of the most well-known supplement brands. If not the most popular. The key reason for this is their iconic Gold Standard whey powder. It is the most popular protein supplement on the market. But, Optimum Nutrition Amino Energy is getting more and more well-known, as well. 

Amino Energy supplies a wide range of Amino Acids in its mix, as you may expect from its name. This makes it an excellent supplement. Especially for anyone wishing to increase their consumption of essential amino acids. Green Tea and Caffeine, as well as Green Coffee Bean Extract and Beta Alanine, are also all included. To find out more about this product, let's take a look at this Optimum Nutrition Amino Energy review. 

Upsides And Downsides

Let's look at some of the pros and cons of Optimum Nutrition Amino Energy.


  • Reputable and Reliable Brand
  • Plenty of Amino Acids available
  • Each serving offers 100mg of caffeine


  • The proprietary blend hides the Amino Acid dosages
  • Sucralose is used as a sweetener
  • Not vegan friendly

Ingredients Of Optimum Nutrition Amino Energy

A nine-gram serving of Optimum Nutrition Amino Energy contains ten calories and 2g carbs. This is a lot for a BCAA supplement. Also, taurine, glutamine, l-arginine, l-leucine, beta-alanine, citrulline, l-isoleucine, l-valine, l-tyrosine, l-histidine, l-lysine HCI, l-phenylalanine, l-threonine, and l-methionine make up a five-gram combination of micronized amino acids.

The advantages and disadvantages of these ingredients will be discussed further down. But, it's important to note one thing. The product appears to have a proprietary amino acid blend. There's no way to know if you're getting the standard 2:1:1 ratio of leucine, isoleucine, and valine that most brands consider ideal for a BCAA supplement. You also don't know how many grams of each amino acid are in a nine-gram serving. All you know is that amino acids make up five of those grams.

Amino Energy's recipe also includes two popular plant extracts. Green Tea and Green Coffee. Green tea extract and green coffee extract each contain 160 mg of caffeine. It's about equivalent to a cup and a half of coffee. Since the green tea extract has been standardized for EGCG, it retains many of the beneficial phytonutrients.

It's worth noting that Amino Energy's contents don't include Creatine. So it's a good option for those seeking a supplement that doesn't contain Creatine.

One drawback of this powder supplement is that it enhances its flavor with Sucralose. If you want a pure BCAA supplement without any additives or flavorings, a capsule-form product may be the way to go.

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Optimum Nutrition Amino Energy review

Benefits and Effectiveness of Optimum Nutrition Amino Energy

There's a lot to dissect here. Let's begin with the professionals.

The supplement contains taurine. This ingredient may help to lessen the jitteriness and lack of focus that occur with a shot of caffeine. That makes it a good choice for a pre-workout. It could also help with muscle cramping, too

Essential Amino Energy has more than leucine, isoleucine, and valine. It can do more than preventing muscle breakdown and boost endurance. Citrulline, for example, may boost blood flow and offer a "muscle pump”. Beta-alanine is responsible for delaying weariness. Tyrosine is a stimulant. Methionine is utilized for bone strength. And phenylalanine may improve nervous system performance and boost your mood.

But, the components list has an "everything but the kitchen sink" vibe to it. With many of the amino acids appearing to be filler. For example, it contains arginine, which is used as a vasolidator. But, they are both competing for the same mechanism. So, including them both makes little sense.

Amino acids including histadine. This substance is administered to people with immune problems. Lysine HCI is also available. This one is used to prevent cold sores and herpes outbreaks. Besides, you can find threonine, the substance that increases immunity. And glutamine, which may boost immunity, is also unnecessary. It's most useful for burn patients who need to grow back skin, not athletes who want to build muscle.

    Suggested Use

    It's critical to read the entire label of any supplement you're considering before using it.

    At the time of writing, the directions on the Amino Energy were as follows:

    Mix 9g (approximately two scoops) of powder with 10-12 fl oz of water.

    When it comes to the timing of taking this supplement, there is no specific advice. If you want to use it as a pre-workout supplement, you should drink it 20 to 30 minutes before you begin your workout.

    It's usually advisable to avoid taking it within six hours of going to bed. Because of the caffeine component in this supplement.

    That concludes our in-depth review of the Optimum Nutrition Amino Energy. In general, Ultimate Sup Singapore finds this is a nice selection. It includes many vital Amino Acids as well as other substances like Caffeine and Green Tea Extract.

    There are some disadvantages, still. It contains the sweetener Sucralose. Also, it uses a proprietary blend, so we don't know the doses of some of the constituents.

    To conclude, this is a popular supplement from Optimum Nutrition that, when used properly, can help you achieve your health and fitness goals. If you need our support, please feel free to ask.

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