Applied Nutrition Amino Fuel EAA - BCAA 2:1:1 L-Glutamine

What is Applied Nutrition's Amino Fuel EAA?

Applied Nutrition Amino Fuel is a free-form amino acid powder to be mixed with water, dosed at 13 g per serving. It belongs to our EAA range: it contains the nine essential amino acids, that is, the ones the body cannot make itself and which must come from food. To these are added 2.5 g of L-glutamine, which is not an essential amino acid but is the most abundant one in muscle.

The point to grasp before anything else: these are free-form amino acids, not a protein. They are not bound to anything, they require no prior digestion, and they are drunk in a large volume of very cold water — the manufacturer advises 500 ml. That is what makes it a training drink rather than an end-of-session shake.

The ingredient list for the Fruit Burst version reads in descending order of weight: L-leucine, L-glutamine, L-valine, L-isoleucine, L-lysine, citric acid, natural flavouring, L-threonine, L-histidine, L-phenylalanine, salt, sucralose, L-methionine, natural beetroot colouring. The flavours listed: Icy Blue Raz, Fruit Salad, Fruit Burst, Candy Ice Blast and Millions Pineapple. The British brand's range can be found in our Applied Nutrition section.

What does a 13 g serving contain?

No nutrient reference value is established for amino acids: a "% NRV" column would make no sense here, and we do not show one.

The total comes to almost 11 g of amino acids in a 13 g serving, including 6 g of BCAAs in the classic 2:1:1 ratio and 8.5 g of essential amino acids. It is a well-loaded product with very few excipients: the rest is citric acid, flavouring, sucralose and colouring.

Now for the honest reading of that table, the one you will not find elsewhere. The profile is heavily weighted towards the top of the list. Leucine, isoleucine and valine on their own account for 6 of the 8.5 g of essentials. At the other end, methionine is at 50 mg and tryptophan at 100 mg — token amounts. Saying that the product contains the nine essential amino acids is accurate; implying that it supplies useful quantities of each would be far less so. It is a BCAA product with extras, rather than a complete, balanced amino acid profile.

A second labelling curiosity: the line "Protein: 0 g" when the serving contains 11 g of amino acids. This is not a mistake. Free-form amino acids are not declared as protein under European nutrition labelling, which is based on a measurement of protein nitrogen. That has a practical consequence: these 11 g do not count as protein in your macros, even though they are its building blocks.

Finally, no health claim is authorised in Europe for BCAAs, EAAs or glutamine. So we describe a composition and doses, never a promised effect on recovery or muscle mass. As the net weight of the tub does not appear in the data supplied to us, we also cannot work out the number of servings: divide the weight printed on the packaging by 13 g.

How do you take Amino Fuel?

Serving: 1 scoop of 13 g. Liquid: 500 ml of cold water. Timing: 30 minutes before the session, during training, or straight afterwards. Frequency: 1 to 3 servings a day depending on training volume. Duration: no fixed course imposed by the manufacturer.

The 500 ml is not a suggestion for comfort. A free-form amino acid powder is acidic and very concentrated in flavour: with too little water it becomes frankly aggressive, and the flavours in this range are already very pronounced. Shake vigorously until fully dissolved.

The most sensible use is during the session. You are drinking anyway, the drink supplies only 3 kcal, and you are not left with a full stomach. That is also what sets it apart from a protein shake, which nobody drinks between two sets. With 3 kcal and 0.49 g of carbohydrate, it also remains compatible with a fasting window in the calorie sense of the term.

A common-sense note on frequency: three servings a day are only worthwhile if your training volume is genuinely high and your protein intake is already covered. If it is not, the money is better spent on a tub of protein. We come back to this further down, because it is the real question.

Who is Amino Fuel for, and who is it not for?

It suits anyone who trains for a long time and wants a drink to sip during the effort without anything sitting heavily on the stomach. It also suits anyone who digests protein poorly before or during a session, and anyone who trains fasted in the morning and wants to avoid calories.

The manufacturer restricts it to adults, advises against it for pregnant and breastfeeding women, and recommends consulting a healthcare professional if you are on any medical treatment. It notes that natural variations in colour may occur — the colouring is beetroot red, whose shade is not stable. The product is declared free from added sugar, gluten and lactose.

It is not for you if your daily protein intake is not already covered. That is the essential point: free-form amino acids are only worthwhile in addition to a diet that already hits its protein target, not as a replacement for it. Nor is it for you if you are looking for a balanced amino acid profile — 50 mg of methionine does not replace what is in an egg.

What you should not expect from it: it is neither an immediate performance product nor a stimulant — it contains no caffeine. Nor is it a source of protein as far as your macros are concerned, as explained above. And it will do nothing for you if you train for thirty minutes three times a week: in that case, a decent meal after the session does the same job for far less money.

Amino Fuel or a whey isolate?

This is the decisive comparison, and it is less favourable to amino acids than is usually claimed. Let us look at the figures rather than the arguments.

A 13 g serving of Amino Fuel supplies 8.5 g of essential amino acids. A 30 g serving of whey isolate supplies around 25 g of protein, roughly half of which is essential amino acids — a comparable order of magnitude, but with a complete, balanced profile, and generally at a lower cost per serving. Add to that the fact that whey does count towards your protein total. On quantity for the money, protein wins, and that needs saying.

Whey is therefore the better default choice: if you have to pick a single product, it is that one. Free-form amino acids keep three genuinely real situations for themselves. During the effort first of all: nobody drinks a milky shake between two sets, whereas a clear 3 kcal drink goes down very easily. Fasted next, if you are set on taking in no calories. And in cases of lactose intolerance or difficulty digesting dairy protein, where a free-form amino acid powder poses no problem at all. If your interest is mainly in BCAAs, do compare with our BCAA range; and if it is glutamine you are after, a pure glutamine will cost you less per gram.

Frequently asked questions

Why does the label say 0 g of protein?

Because free-form amino acids are not counted as protein under European nutrition labelling, which is based on a measurement of protein nitrogen. It is not a manufacturer's error. Practical consequence: do not count these 11 g in your protein macros, even though they are its components.

How many BCAAs in a serving?

Exactly 6 g: 3 g of leucine, 1.5 g of isoleucine and 1.5 g of valine, that is the 2:1:1 ratio. It is a straightforward dose, leucine being the most studied amino acid of the three. Those 6 g on their own make up more than half the amino acids in the serving.

Why so little methionine and tryptophan?

50 mg of methionine and 100 mg of tryptophan are token amounts, and it is a feature of the formula you need to be aware of. The product does contain the nine essential amino acids, but overwhelmingly in the form of BCAAs. If you are after a complete, balanced profile, what you need is a complete protein, not this powder.

Can you drink it while fasting?

In the calorie sense, yes: 3 kcal and 0.49 g of carbohydrate break practically nothing. It is in fact one of the uses proposed by the manufacturer. We should point out, though, that amino acids do trigger a metabolic response, which is nothing like a plain glass of water — it is up to you to decide what you want from your fast.

Do you really need 500 ml of water?

Yes, and it is not negotiable where palatability is concerned. Free-form amino acids are acidic and concentrated, and the flavours in this range are very pronounced. In 250 ml the drink becomes aggressive and hard to finish. Use properly cold water, and shake until fully dissolved.

Can it be combined with a whey or a booster?

Yes to both, no interaction is known. The question is rather one of usefulness: if you are already taking a whey that covers your intake, adding free-form amino acids brings little. With a pre-workout booster the combination is coherent — one stimulates, the other is drunk during the effort — provided you keep an eye on the booster's total caffeine.

Which flavour should you choose?

The flavours are frankly sweet and tangy, in a confectionery register: Icy Blue Raz and Candy Ice Blast are the most distinctive, Fruit Salad and Fruit Burst the most crowd-pleasing, Millions Pineapple the most fruity. If you drink it right through a session, go for a flavour you will not find sickly by the end of 500 ml.

Where can you buy Applied Nutrition Amino Fuel EAA?

The flavours can be ordered from this page, and we ship throughout France and Europe.

Amino acids are the range we sell least readily, and that is deliberate. At our Vendargues shop, about ten minutes from Montpellier, the first question we ask is how many grams of protein you get in a day. Until that figure is reached, a tub of EAAs is a comfort purchase; once it is, the product makes full sense during long sessions. The complete range can be browsed in our sports nutrition section.