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Definitions

vitamin

[vahy-tuh-min, vit-uh-min] / ˈvaɪ tə mɪn, ˈvɪt ə mɪn /
NOUN
nutrient
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

High doses of vitamin D or vitamin A can cause toxicity.

From Science Daily • Jun. 6, 2026

A large trial found that vitamin D supplementation did not significantly reduce fracture risk in generally healthy midlife and older adults who were not selected for deficiency.

From Science Daily • Jun. 6, 2026

The team found that participants with higher homocysteine levels generally had lower levels of folate and vitamin B12, regardless of sex.

From Science Daily • May 29, 2026

"This study builds on the established role of dietary sources high in vitamin C to enhance iron absorption and improve the effectiveness of iron supplementation," he comments.

From Science Daily • May 27, 2026

“I have friends, and I get plenty of vitamin D. I take a gummy vitamin every morning.”

From "The Miscalculations of Lightning Girl" by Stacy McAnulty




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