terveellistä
Terveellistä is the partitive singular form of the Finnish adjective terveellinen, meaning healthy or healthful. It is used to describe things that are considered beneficial to health, such as foods, habits, or products. The base word terveellinen comes from the root terve (healthy) with the suffix -ellinen, which creates adjectives indicating characteristic or quality.
In Finnish, adjectives decline to agree with the noun in number and case. Therefore, terveellistä is used
Usage context is common in everyday Finnish, media discussions about diet and wellness, and sometimes marketing.