noun
fruitarian
A person who eats only fruit, nuts, seeds, and other plant parts that can be harvested without killing the plant. This term is a direct loan from English and is used in dietary and lifestyle contexts.
彼女はフルータリアンで、果物とナッツだけを食べている。
She is a fruitarian and eats only fruit and nuts.
ベジタリアン (vegetarian) is a broader term for someone who does not eat meat, while フルータリアン specifically refers to a diet consisting mainly of fruit.
ヴィーガン (vegan) avoids all animal products, but may eat cooked vegetables and grains, whereas フルータリアン focuses on raw fruit and nuts.
Borrowed from English 'fruitarian'.