Questions
According to the video, what percentage of American adults are vitamin D deficient?
- a) 20%
- b) 30%
- c) 40%
- d) Over 40%
What is the primary natural source of vitamin D production in humans?
- a) Food
- b) Water
- c) Skin exposure to UV rays
- d) Exercise
How can you differentiate between muscle pain and bone pain related to vitamin D deficiency?
- a) Muscle pain is spread out, bone pain is localized
- b) Muscle pain is localized, bone pain is broadly spread
- c) They feel exactly the same
- d) Only bone pain exists with vitamin D deficiency
What condition related to bone softening can occur in adults with severe vitamin D deficiency?
- a) Arthritis
- b) Osteomalacia
- c) Scoliosis
- d) Tendinitis
Which brain chemicals are affected by vitamin D levels?
- a) Serotonin and dopamine
- b) Adrenaline and cortisol
- c) Melatonin only
- d) Insulin only
What unusual symptom might indicate vitamin D deficiency?
- a) Cold feet
- b) Sweaty head while rest of body isn’t sweating
- c) Red eyes
- d) Dry mouth
How much more vitamin D might people with larger waistlines need compared to people of average weight?
- a) Twice as much
- b) Three times as much
- c) Four times as much
- d) The same amount
According to the video, adults with serious vitamin D deficiencies are how many times more likely to suffer impaired cognitive function?
- a) Two times
- b) Three times
- c) Four times
- d) Five times
Why do people with darker skin naturally produce less vitamin D?
- a) Due to diet restrictions
- b) Due to higher levels of melanin
- c) Due to genetic factors
- d) Due to environmental factors
Which of these is mentioned as a way to fix vitamin D deficiency?
- a) More exercise
- b) Drinking more water
- c) Eating fatty fish
- d) Getting more sleep
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