Approximately ____ of dietary iron is absorbed each day from typical Westernized diets.Multiple Choice1%-3%14%-18%55%-65%90%-99%

Break Down the Problem

1. Identify the question regarding the percentage of dietary iron absorbed from typical Western diets.
2. Analyze the multiple-choice options provided to understand the possible answers.

Relevant Concepts

The absorption of dietary iron can vary greatly depending on various factors, such as the type of iron (heme vs. non-heme), dietary components, and the individual's needs. In typical Western diets, the absorption of iron is often lower due to the presence of substances that inhibit absorption.

Analysis and Detail

1. Heme Iron vs. Non-Heme Iron: Heme iron, found in animal products, is absorbed more efficiently than non-heme iron, found in plant-based foods.
2. Iron Absorption Rate: For non-specialized, mixed diets typical of Western countries, absorption rates generally fall within a certain range.

The common estimation is that about 14%-18% of dietary iron is absorbed from mixed diets.

Verify and Summarize

• The options provided include:
  • 1%-3%
  • 14%-18%
  • 55%-65%
  • 90%-99%
• Among these, 14%-18% aligns with the researched dietary norms.

Final Answer

Approximately 14%-18% of dietary iron is absorbed each day from typical Westernized diets.