Short answer: No. During Paryushan, most Jains avoid makhana (phool‑makhana/lotus seeds). It is an aquatic seed harvested from water bodies that host many tiny life‑forms, so its use is generally restrained to reduce himsa. This holds in both Shvetambar (8‑day Paryushan) and Digambar (Das‑Lakshan) observances, where the diet is kept very simple and excludes items linked with higher micro‑life or water‑grown produce. Always follow the maryada of your sangh and the guidance of your guru.

For a quick reference from JainKnowledge: