T1 L9: Micronutrients Flashcards
Thiamine and vitamin D deficiency are associated with which illness?
Alcoholic liver disease
Iron, B12, vitamin D, Vitamin K, folic acid, selenium, zinc, Vitamin B6, and vitamin B1 deficiency are associated with which illness?
Inflammatory bowel disease
Vitamin D, copper, and zinc deficiency are associated with which illness?
Obesity
Where is Vitamin C sourced and absorbed?
From plants and its absorbed in the buccal mucosa, stomach, and small intestine
What vitamin is deficient in Wernicke Karsokoff syndrome?
B1 (Thimaine)
Where is Vitamin B1 (Thiamine) sourced and absorbed?
It’s common in all foods and is absorbed in the jejunum and ilium
Where is Vitamin B2 (Riboflavin) sourced and absorbed?
In most food as co-enzyme form and is absorbed in the small intestine
Where is Vitamin B12 sourced and absorbed?
Found in animals - meat, milk, cheese, fish. Its absorbed in the distal portion of the ilium
What is intrinsic factor used to absorb?
Vitamin B12
Describe the absorption process of vitamin B12
B12 combines with R-factor in the presence of HCl. R-factor then degrades and free B12 combines with intrinsic factor. In the presence of Ca2+ ions, B12 combines to intrinsic factor will be absorbed into the plasma
Where is Vitamin A sourced and absorbed?
Found as a long fatty acid chain in animals or as a precursor in orange, yellow, or red plants (Carotenoids). It absorbed in the small intestine but carotenoids are absorbed in the upper region in the duodenum and jejunum
Where is Vitamin D sourced and absorbed?
Found in animals but can be synthesised in skin using UV light. Its absorbed in the small intestine
What is the difference between vitamin D2 and D3?
D2 is dietary, D3 is synthesised using UV light
Where is calcium sourced and absorbed?
Found in dairy and plant products and is absorbed in the duodenum and jejunum
Where is Iron sourced and absorbed?
Found in haem form in animals and non-haem in plant. It’s absorbed in the proximal small intestine
