Fullmetal Alchemist vs Brotherhood: Which Should You Watch First?

For most first-time viewers who want the manga’s main story and ending, start with Fullmetal Alchemist: Brotherhood, from episode one. You do not need to watch the 2003 Fullmetal Alchemist first.

The two television series begin from related source material but develop different continuities. Watching them as consecutive seasons creates confusion. Combining their early episodes into a single “best of both” route can also carry assumptions and characterisation from one version into another.

Compare the adaptations

Why Brotherhood is the default starting point

Our default starting point Fullmetal Alchemist: Brotherhood 64 episodes · start at episode one

The straightforward first-watch route for the manga’s main narrative and ending.

Brotherhood gives a newcomer a single route from the brothers’ predicament through the source narrative’s resolution. That makes it straightforward to recommend when the question is what must be watched to experience the main story.

Its early sections move briskly, and it uses broad comic shifts alongside serious material. Some viewers find those changes disruptive. Starting with an older adaptation solely to slow the opening, however, introduces a different continuity rather than simply supplying deleted scenes. If Brotherhood’s style is not working, switching versions is a new choice, not a repair required by the watch order.

Why the 2003 series is still a separate choice

A different adaptation can be worthwhile because of the questions it emphasises and the direction it takes, not merely as an imperfect rehearsal for a later one. The 2003 series spends its 51 episodes constructing its own version of the story as it diverges from the manga.

Choose it if you are interested in comparing interpretations or if its presentation attracts you more. Its continuity continues into The Conqueror of Shamballa, so include that film when planning that route’s follow-up. Do not expect Brotherhood to resolve threads left by the 2003 television ending; it is telling its own story.

A spoiler-light viewing order

For the manga-focused route, watch Brotherhood episodes 1 through 64. Explore its additional material afterward if you want more time in that version. You do not need another series or movie before beginning.

For the 2003 route, watch Fullmetal Alchemist episodes 1 through 51, then The Conqueror of Shamballa. If you later watch Brotherhood, begin again at its first episode. Familiar scenes still establish that adaptation’s pacing, details, and relationships.

Avoid searching for detailed comparisons of the villains or endings before choosing. Those differences are precisely where comparison articles and fan watch orders can reveal more than a first-time viewer needs.

Check the commitment and tone

Both versions involve bodily harm, war, loss, and difficult questions about responsibility. A young central cast and comic moments do not make either a uniformly light adventure. Brotherhood’s 64 episodes are a substantial investment even though the main narrative concludes.

If a finished fantasy is what you want but this is too long, use our completed-story guide. If you have already watched Brotherhood, tell the Finder whether it was the ensemble, ethical conflict, or adventure that made it work for you.