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BCAAs (Supplement)

Last updated on 19/03/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  

GENERIC NAME: Branched Chain Amino Acids (BCAAs)


BRAND NAME(S) IN HONG KONG: Evlution Nutrition, Post Jym, Scivation XTend

DRUG CLASS: Amino acid

USED FOR: Enhancing exercise and athletic performance 


What are BCAAs for?

BCAAs are the most abundant amino acids stored in our muscles and include leucine, valine, and isoleucine. The common reason for taking BCAAs is that when you take BCAAs during exercise and the recovery period, they can be oxidized in your muscles to provide extra energy for exercise and recovery. However, there is limited scientific evidence to prove if these claims are valid or not. Only very few studies have proven that after taking BCAAs supplements, the cognitive functions of individuals have been improved.

How to use them?

BCAAs can be taken either in the form of capsules or powder. The usual adult dose is 2-4 g every hour during exercise and recovery period.

What are the side effects of BCAAs?

There are no reports on the side effects of BCAAs.

Who should not take BCAAs ?

There are no reports on the specific situation or population in which BCAAs should not be used.

Pharmacist Tips:

Most people should obtain adequate amounts of BCAAs from a healthy diet. BCAAs are present in many foods including red meats, dairy products, legumes, nuts and seeds, grains.

Common dosing schedule:
Take BCAAs supplements as per product instructions.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications BCAAs may interact with:
– Levodopa

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy BCAAs in Hong Kong?

In Hong Kong, BCAAs supplement can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health. 

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of BCAAs in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.