Vitamin C Flashcards
(16 cards)
What factors increase the need for vitamin C?
Pollution, chronic stress, illness, and infection.
Which forms of vitamin C are best for health maintenance?
Low-dose food forms like rose hip and acerola, as the body recognizes them as food.
What form of vitamin C is used for detoxification and why?
High-dose ascorbic acid, acts as an antioxidant that removes free radicals but is quickly excreted.
What are the preferred supplement forms of vitamin C?
Capsules, liposomal vitamin C, and powders.
Which vitamin C supplement forms are less desirable and why?
Tablets, chewables, fizzy powders/tablets — often contain sweeteners, artificial colorings, and additives.
What is a characteristic of ascorbic acid as a vitamin C supplement?
Naturally found in food with good bioavailability but acidic and may irritate the gastrointestinal tract.
What role do bioflavonoids play in vitamin C supplements?
They are plant compounds that work synergistically to enhance immune benefits and may increase vitamin C bioavailability.
Why is liposomal vitamin C more bioavailable?
Because the phospholipid outer casing protects vitamin C from damage.
How does time-release vitamin C improve absorption?
By delivering smaller doses throughout the day, maximizing total absorption over time.
What are mineral ascorbates and why are they used?
Buffered forms of vitamin C combined with minerals (calcium, magnesium, sodium, potassium) to reduce gastrointestinal upset.
What is Ester-C®?
A patented buffered vitamin C (mainly calcium ascorbate) that is well absorbed and gentle on the gut.
What adverse reaction can high doses of vitamin C cause?
Diarrhea (bowel tolerance).
Why should people with haemochromatosis avoid high-dose vitamin C?
It may increase iron absorption and have a pro-oxidant effect.
How can vitamin C affect lab tests?
It can alter results for bilirubin, glucose, nitrites, and leukocytes; avoid supplementation at least 10 hours before testing.
What should cancer patients consider about vitamin C supplementation?
The safety and efficacy are controversial; they should consult their oncologist first.
How can vitamin C interact with statins?
It may affect lipid levels in individuals taking statins.
