Description of PROTEINI.SI NATURAL BCAA
Short summary
The dietary supplement contains natural flavors and is free from artificial flavors, colors and flavor enhancers. It is designed to support recovery after training and to help maintain muscle mass.
7.7 / 10Our expert rating
Ingredient quality7.5
Formula transparency9.0
Effectiveness9.0
Safety8.5
Independent testing1.0
How to use
Add 1 dose (6.5 g) to 300 ml of water and mix well. Take 1-3 doses daily - before a meal or workout and after training or before bed.
Pros and Cons
BCAAs in a 2:1:1 ratio - the standard ratio used in the original research on muscle metabolism
Supports recovery after intense physical activity
Helps maintain muscle mass during periods of increased training or a calorie deficit
Free from artificial flavors, colors and flavor enhancers - sweetened with a combination of sucralose and stevia extract
Among the products compared in this category, it has the most favorable price per dose
Contains only three essential amino acids, not all of them, so it is not a complete protein source
Contains the artificial sweetener sucralose, which may not suit some users
If total daily dietary protein intake is already sufficient, the additional benefit of standalone BCAA supplementation is limited (Wolfe, 2017)
Among the products compared, it has no publicly available independent lab-testing data
Suitable for
Users who want to avoid artificial colors and flavor enhancers
Athletes and recreational trainers looking for an affordable way to support post-workout recovery
People who want flexible dosing (1-3 doses per day) to fit their own schedule
With dietary supplements, price depends on several factors - brand, marketing spend, packaging and additional certifications - not just the raw materials themselves. Based on available data, this product has a standard BCAA ratio (2:1:1) in the form of free crystalline amino acids, the same as the more expensive products it's compared with, and the formula is actually somewhat cleaner, since it contains no artificial colors and uses a combination of sucralose and stevia instead of purely artificial sweeteners. So a lower price doesn't necessarily mean lower base quality of the amino acids - however, like most products in this category, it lacks publicly published independent lab testing that would further confirm the purity of each batch.
The label carries a warning that the product may contain traces of milk, eggs, gluten, soy, peanuts, nuts, fish, crustaceans, celery, molluscs and sulphur dioxide - this is a warning about possible cross-contamination in the manufacturing facility, not about added nut ingredients. With mild allergies, the risk varies greatly from case to case, so if you have any known allergy to nuts or other listed allergens, we recommend consulting an allergist or a doctor familiar with your specific sensitivity before use, as we cannot assess individual risk ourselves.
Stevia (steviol glycosides) is a natural sweetener that, compared to sugar, can have a slightly different aftertaste - sometimes mildly bitter or herbal - depending on the concentration and combination with other sweeteners. In this product, stevia is combined with sucralose, which often softens that aftertaste compared to using stevia alone. The advantage of this combination is that the formula contains fewer purely artificial sweeteners than comparable products in this category, which is a plus for users who want to avoid artificial additives, even if it means a slightly different taste profile.
The manufacturer recommends 1-3 doses (of 6.5 g) daily, which at three doses amounts to about 15 g of BCAAs per day - this falls in the middle-to-upper part of the range (roughly 5-20 g/day) used in clinical studies on reducing post-exercise muscle soreness (Khemtong et al., 2021; Salem et al., 2024). A single daily dose is at the lower end of this range and will likely produce a less pronounced effect. It's also important that this be consistent, multi-day use rather than a one-off dose around a single workout, as longer supplementation (over 7 days) has been shown to yield better results.
Milk, eggs, gluten, soy, peanuts, nuts, fish, crustaceans, celery, molluscs, sulphur dioxide
Contains sucralose - in people with a very sensitive digestive tract, the artificial sweetener may trigger mild bloating
Exceeding the recommended dose may cause digestive issues (bloating, nausea, stomach discomfort)
May contain traces of milk, eggs, gluten, soy, peanuts, nuts, fish, crustaceans, celery, molluscs and sulphur dioxide - people with allergies should exercise particular caution
People with maple syrup urine disease (MSUD) or advanced liver disease should only use this product after consulting a doctor
Ingredients
L-leucine 38%, L-valine 19%, L-isoleucine 19%, acids (citric acid, malic acid), flavors, sweeteners (sucralose, steviol glycosides from stevia). May contain traces of milk, eggs, gluten, soy, peanuts, nuts, celery, fish, crustaceans, molluscs and sulphur dioxide.
Form:Powder
Dose:1 serving (6.5 g)
Available flavors:2 (Lemon, maracuja - passion fruit, strawberry kiwi)
L-leucine:2500 mg
L-isoleucine:1250 mg
L-valine:1250 mg
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