What is the best way to consume vegetables to retain all their vitamins?

The hormone Leptin is known to be higher in individuals who are: 

Which of the following vitamins is needed for bone health because it is necessary for the absorption of calcium?

Which of the following practices puts a person at risk of poor dental health due to low fluoride intakes?

Which of the following is an ideal strategy to lose weight? 

An effective way to decrease sodium intake is to:

Which nutrient is associated with high blood pressure when intakes are high? 

What is the best way to ensure you are consuming all of the trace minerals?   

To decrease the risk of birth defects such as spina bifida, what nutrient might a physician recommend that a woman attempting pregnancy start supplementing with?

A 25 year old man is admitted to the hospital due to an infection. He has had very high fevers, extensive periods of chills and sweating. The nurse reviews his labs. Which electrolyte level should we expect to be affected?