What question did this study set out to answer?

The study aims to assess how different diets and iron forms influence the bioaccessibility of iron from supplements and medications.

April 15, 2026NutrientsOpen Access

Influence of Diet on Bioaccessibility of Iron from Dietary Supplements and Medicinal Products—Results of In Vitro Digestion Model and Analytical Determinations

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Evaluates how diet type and iron form affect bioaccessibility in various products, suggesting dietary optimization methods.

The study aims to assess how different diets and iron forms influence the bioaccessibility of iron from supplements and medications.
Utilized a two-stage in vitro digestion model to simulate human digestion.
Analyzed iron content using ICP-OES in dietary homogenates.
Compared bioaccessibility across different diet types and iron formulations.
Basic diet model showed the highest iron bioaccessibility at 7.96%.
Standard diet exhibited lower bioaccessibility at 4.63%.
Iron sulfate had the highest bioaccessibility at 12.58%, while iron lactate had the lowest at 5.25%.
Extended-release tablets recorded a maximum bioaccessibility of 19.31%.

Bawiec et al. (2026) studied this question.

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