Iron Absorption

Iron Absorption

Question 1. What are normal levels of the following:

1. Serum phosphorous
2. Serum cholesterol

Answer:

Normal Levels:

1. Serum phosphorous – 3 – 4.5 mEq/1
2. Serum cholesterol -150 – 200 mg/dl

“Understanding iron absorption through FAQs: Composition, functions, and uses explained”

Question 2. Sources and absorption of iron
Answer:

Sources:

• Liver
• Heart
• Leafy vegetables
• Iron cookware

“Importance of studying iron absorption for medical students: Questions explained”

Absorption:

• Dietary iron is in the ferric form bound to proteins or organic acids
• The acidic medium of gastric juice releases this ferric ion
  Later it is converted to ferrous form by reducing substances like ascorbic acid & cysteine
• The ferrous form is soluble & is readily absorbed by mucosal cells

“Factors influencing success with iron absorption studies: Q&A”

• It is oxidized to ferric form by ferroxidase
• This ferric form then combines with apoferritin& forms ferritin
• Iron from the mucosal cells may enter the bloodstream
• • The ferric form is- Fe3+
  • The ferrous form is Fe2+