What Is the Best Unflavored or Sugar Free Essential Amino Acids Powder?
The best unflavored EAA powder is BulkSupplements Essential Amino Acids Powder: 10 g of all nine essential amino acids a serving, no sweetener added, for about $0.50 a serving. NSF International’s NSF/ANSI 173 list names it. Unflavored EAAs taste bitter.
Our pick for: Unflavored, no sweetener
BulkSupplements Essential Amino Acids Powder (500 g, Unflavored)
- Per serving
- $0.5010 g of EAA, at Amazon prices
- A bag
- $24.97500 g, 50 servings
- Testing list
- NSF/ANSI 173NSF Certified for Sport lists the 1 kg bag
- Other ingredient
- Sunflower lecithinNo sweetener or flavor
Why we pick it It is unflavored, it has no sweetener on its label, and NSF/ANSI 173 lists it. ChatGPT names it in 8 of 8 of its saved answers to this question. The label gives one 10 g total for all nine amino acids and no amount for each, so leucine is not printed. If you want leucine printed, NAKED prints 2.4 g.
What should an unflavored EAA powder have?
ChatGPT’s answers most often check five things. Here is where the three powders with a printed label land.
- All nine essential amino acids. All three name all nine on the label.
- About 8 to 10 g of EAA a serving. BulkSupplements has 10 g, NAKED 9.25 g and Nutricost 8 g. ChatGPT asks for about 8 to 10 g in 3 of its 8 answers.
- The amount of leucine. NAKED prints 2.4 g and Nutricost 3 g. BulkSupplements prints a 10 g total only.
- No sweetener. No sweetener is on any of the three labels. The other ingredient is sunflower lecithin (BulkSupplements, NAKED) or silica (Nutricost).
- A testing list. NSF/ANSI 173 checks that the contents match the label. BulkSupplements is on NSF/ANSI 173. NAKED and Nutricost are on no testing list.
Which unflavored EAA powder is right for you?
Want every amount printed? NAKED prints each of the nine, with 2.4 g of leucine, at $0.86 per 10 g of EAA. Nutricost prints each too, with 3 g of leucine, at $0.75. BulkSupplements prints one 10 g total at $0.50 and is the only one of the three on NSF/ANSI 173. Buy NAKED for the full amino acid profile in a vegan powder, BulkSupplements for the lower cost and the testing list. Want the lowest cost? The 1 kg bag of the same BulkSupplements powder is $0.36 per 10 g ($35.97 for 100 servings), and NSF Certified for Sport lists that size. The 500 g bag is the button here at $24.97 for 50 servings. Choose the 1 kg bag if you will use 100 servings and want the Certified for Sport size.
Every amount printed, vegan: NAKED EAAs
NAKED EAAs is an unflavored, vegan powder. A 10 g serving holds 9.25 g of EAA and the rest is sunflower lecithin.
The label prints every amount: leucine 2.4 g, isoleucine 1.2 g, valine 1.2 g, lysine 1.2 g, threonine 1.2 g, methionine 0.9 g, histidine 0.45 g, phenylalanine 0.45 g and tryptophan 0.25 g. Leucine, isoleucine and valine are 4.8 g of the 9.25 g, or 52%.
Not on a testing list: NSF/ANSI 173, NSF Certified for Sport, Informed Choice or Informed Sport.
$0.86 per 10 g of EAA · $39.99 for 500 g (50 servings)
Check price on AmazonEvery amount printed, 8 g a scoop: Nutricost EAA Powder, Unflavored
One 8 g scoop is 8 g of EAA: leucine 3 g, isoleucine 1.5 g, valine 1.5 g, lysine 0.8 g, threonine 0.69 g, phenylalanine 0.35 g, histidine 0.1 g, tryptophan 0.05 g and methionine 0.01 g. Leucine, isoleucine and valine are 6 g of the 8 g, or 75%. Methionine is 10 mg and tryptophan 50 mg, against 900 mg and 250 mg in NAKED.
The other ingredient is silica. The brand says independent accredited labs test it. Not on a testing list. $17.95 for 30 scoops, $0.75 per 10 g of EAA.
BodyHealth PerfectAmino Unflavored & Unsweetened powder
ChatGPT names it in 4 of its 8 answers. NSF/ANSI 173 lists a PERFECT AMINO Unflavored powder, serving 1 scoop (5.3 g), by product name.
Sugar free, with a flavor
ChatGPT names two flavored powders in 1 of its 8 answers each. RAW Nutrition EAA Plus (watermelon grape) is sweetened with sucralose and stevia (Reb M), and Informed Sport lists the product by name. Kion Aminos Powder (mixed berry) is sweetened with stevia leaf extract and monk fruit extract.
Unflavored EAA powder tastes bitter
Leucine, isoleucine and valine are three of the nine. They are called BCAAs, short for branched-chain amino acids, and a taste study of Aminoleban EN, a nutrition drink for liver patients that contains the three BCAAs, says “BCAAs are extremely bitter”. ChatGPT mentions the bitter taste in 6 of its 8 answers. Plan for it:
- Stir one serving into cold water, juice, a smoothie or a protein shake.
- Serve it cold. In that taste test, the drink at 0 to 5 °C was less bitter than at 25 to 30 °C.
How do the unflavored EAA powders compare?
Lowest cost for 10 g of EAA first, at Amazon prices read November 12, 2026. Each label lists no sweetener. Amazon prices change, so the order can too.
| Powder | Leucine | Testing list | Per 10 g of EAA |
|---|---|---|---|
| BulkSupplements EAA Powder, 1 kg10 g of EAA a serving · $35.97, 100 servings | Blend total only | NSF/ANSI 173 and NSF Certified for Sport | $0.36 |
| BulkSupplements EAA Powder, 500 g10 g of EAA a serving · $24.97, 50 servings | Blend total only | NSF/ANSI 173 | $0.50 |
| Nutricost EAA Powder, Unflavored8 g of EAA a serving · $17.95, 30 scoops | 3 g in an 8 g scoop | Not on a testing list | $0.75 |
| NAKED EAAs9.25 g of EAA a serving · $39.99, 50 servings | 2.4 g in a 10 g serving | Not on a testing list | $0.86 |
Questions people ask
What does sugar free mean on an EAA label?
Sugar free means no sugar. It does not mean no sweetener. The three powders above list no sweetener. The flavored EAA powders we read list sweeteners such as sucralose, acesulfame potassium, stevia and monk fruit. For a flavored one, see the best EAA supplement.
Which NSF list covers the BulkSupplements powder?
NSF/ANSI 173 lists BulkSupplements’ “Essential Amino Acids (EAA) Unflavored” by product and serving, 4 tsp (about 10 g), with no bag size. NSF Certified for Sport lists the same name for the 1 kg bag, lot 2524609. NSF says that mark means it verifies the products “do not contain unsafe levels of contaminants, prohibited substances or masking agents, and that what is on the label matches what is in the product.” Details: which EAA supplements are third-party tested.
Why does a 10 g NAKED serving hold 9.25 g of EAA?
The rest is sunflower lecithin. The NAKED label lists 9.25 g of the nine amino acids in a 10 g serving, about 2 scoops. The BulkSupplements label lists sunflower lecithin as its other ingredient too.
Who should check with a doctor first?
Anyone with PKU (phenylketonuria). Phenylalanine is one of the nine essential amino acids in every EAA powder, and MedlinePlus says PKU “can often be managed by following a diet that is low in phenylalanine.”
How we picked
We started from the powders ChatGPT names in its 8 saved answers to this question: BulkSupplements and NAKED EAAs in 8, Nutricost in 7, BodyHealth PerfectAmino in 4, and RAW Nutrition EAA Plus and Kion Aminos in 1 each. We read each label (the brand’s page or NIH’s label database), searched NSF/ANSI 173 on November 9, read NSF’s listing for the BulkSupplements 1 kg bag, and priced each powder on Amazon on November 12, 2026. We ranked unflavored first, then no sweetener on the label, then a testing list for the product, then cost for 10 g of EAA. For flavored powders and capsules, see the best EAA supplement. For what the research says, see essential amino acids explained.
Sources
- Haraguchi T, et al. Synergistic effects of sour taste and low temperature in suppressing the bitterness of Aminoleban® EN. Chem Pharm Bull (Tokyo). 2011.
- MedlinePlus. Phenylketonuria. Read November 12, 2026.
- Labels: NIH Dietary Supplement Label Database, BulkSupplements.com EAA (label 312441); NAKED EAAs; Nutricost EAA Powder. Brand pages read October 7, 2026.
- Testing: NSF/ANSI 173 listings, read November 12, 2026; NSF Certified for Sport listing 1796669, BulkSupplements EAA (1 kg); NSF Certified for Sport, about the mark.