Let $X$ be an $n$-dimensional Calabi-Yau manifold with $\omega$ the Kähler form of a Ricci-flat metric on $X$ and $\Omega$ a nowhere vanishing holomorphic $n$-form. Then a submanifold $M\subseteq X$ is special Lagrangian if it is Lagrangian, i.e., $\dim_{\mathbb{R}}M=\dim_{\mathbb{C}}X$ and $\omega|_{M}=0$, and in addition, $\operatorname{Im}\Omega|_{M}=0$.