BCAAs vs EAAs: What's the Difference?

Walk down any supplement aisle and you'll see two similar-looking options: BCAAs and EAAs. They sound almost the same, so what's the actual difference? Here's a plain-English breakdown.

What are amino acids?

Amino acids are the building blocks of protein. There are nine “essential” amino acids — meaning your body can't make them, so they have to come from your diet or supplements.

BCAAs: the three

BCAAs (branched-chain amino acids) are three of those nine: leucine, isoleucine and valine. They've long been popular as an intra-workout drink because they mix easily and taste great.

EAAs: the full set

EAAs (essential amino acids) include all nine essentials — the three BCAAs plus the other six. Because they provide the complete set, EAAs have become the more popular choice in recent years for anyone wanting the full range in one scoop.

Which should you choose?

If you already eat plenty of protein through the day, a BCAA drink can be a refreshing way to sip through a session. If you'd rather cover all your bases in one product — particularly around training — an EAA blend is the more complete option. Many people simply pick whichever tastes best and fits their routine.

Explore our full range of amino acids, EAAs and BCAAs. Order before 3pm on a weekday for same-day dispatch and fast, tracked UK delivery.

A quick note

This article is general information, not medical or nutritional advice. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle, and should not be used to prevent or treat any illness. Always read the product label, do your own research, and speak to a qualified doctor, pharmacist or registered nutritionist before starting a new supplement — especially if you are pregnant, breastfeeding, under 18, taking medication or managing a health condition.