Final Flashcards
What is the scientific name for Riboflavin?
B2
What are the functions of Riboflavin?
- Co-enzyme for energy metabolism
- Protects skin & eyes
- Interacts with vitamin B6 & folic acid
What is the RDA of Riboflavin for men?
1.3 mg/day
What is the RDA of Riboflavin for women?
1.1 mg/day
What are good food sources of Riboflavin?
What is the deficiency of Riboflavin called?
Ariboflavinosis
What are the symptoms of Riboflavin deficiency (ariboflavinosis)?
- Inflammation of the membranes of the mouth
- Inflammation of the skin
- Inflammation of the eyes
- Inflammation of the gastrointestinal tract
True or False: When thiamin is deficient, riboflavin may also be lacking.
True
What is Wernicke-Korsakoff syndrome?
Affects brain tissues and is associated with alcohol abuse.
Characterized by apathy, irritability, mental confusion & disorientation, loss of memory, jerky eye movements, and staggering gait.
What is Beriberi?
A condition due to prolonged thiamin deficiency.
First observed in Indonesia with ‘polishing of rice’.
What are the characteristics of ‘DRY’ Beriberi?
Affects the nervous system resulting in loss of sensation in the hands and feet, muscular weakness, and advancing paralysis.
What are the characteristics of ‘WET’ Beriberi?
Affects the cardiovascular system, causing dilated blood vessels, Na and water retention, leading to edema.
How do ‘DRY’ and ‘WET’ Beriberi present?
Both types typically present together, with symptoms of one being more predominant.
What is Thiamin also known as?
Thiamin is also known as Vitamin B1.
What are the functions of Thiamin?
Thiamin is part of the co-enzyme TPP in energy metabolism, affects nerve function, and is needed for the metabolism of alcohol.
What is the RDA of Thiamin for men?
The RDA of Thiamin for men is 1.2 mg/day.
What is the RDA of Thiamin for women?
The RDA of Thiamin for women is 1.1 mg/day.
What are good food sources of Thiamin?
Good food sources of Thiamin include legumes, green peas, and sunflower seeds.
What is Choline deficiency?
Impacts not fully understood. Most intake falls below AI. Symptoms include liver damage.
What is the toxicity of Choline?
UL set as excess intake can lower BP to unsafe levels.
Symptoms include sweating, salivation, reduced growth rate, and liver issues.
What are food sources of Choline?
Milk, eggs, peanuts.
What are general symptoms of B vitamin deficiencies?
Nausea, severe exhaustion, irritability, depression, forgetfulness, loss of appetite & weight, pain in muscles, impairment of the immune response, loss of control of the limbs, abnormal heart action, teary or bloodshot eyes, swollen red tongue, severe skin problems.
How does B vitamin deficiency affect the body?
It affects cell renewal of the digestive tract and blood.
Do deficiencies of B vitamins occur in isolation?
A deficiency of any one B vitamin seldom shows up by itself, since nutrients are not eaten alone.