Saliva protects tooth surfaces and the linings of the mouth, esophagus, and stomach from attack by molecules that might be harmful
a. True
b. False
Indicate whether the statement is true or false
True
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Harold is a college sophomore and is trying to get in shape for spring break. He would like to lose the body weight he has gained during his freshman and sophomore years. In high school he played sports and his family prepared healthy meals, but his freshman and sophomore years have proven to be very different with late nights of school work and hanging out with friends playing poker and eating
lots of take-out food, snacking on pizza, and drinking soda. Harold, who is 5' 10" tall, has gained 18 pounds and now weighs 180 pounds. Harold has never tried to lose weight before and decides to talk to a personal trainer at the gym to get help. During Harold's consultation the personal trainer assesses his BMI, determines his ideal body weight, and measures his body fat content using skin fold calipers. The personal trainer tells Harold his body composition is 26% fat. The personal trainer also measures Harold's waist and his measurement is 42". Harold's personal trainer warns him about the disease risk associated with high levels of visceral fat and suggests that Harold start working out. Which of the following types of exercise would best help Harold in reducing his risk of metabolic abnormalities? A) Walking and jogging B) Stretching C) Weight lifting D) a, c
Nutrients that have DRI levels that are intended to promote both bone health and bone growth include:
a. calcium. b. vitamin D. c. protein. d. a and b e. All of the above
Why might an older adult be in need of a B12 supplement?
A. Older people have a higher risk of osteoporosis. B. Older people have fewer acidic stomach juices. C. Older people drink more fluids and excrete it in their urine. D. Older people don't eat dairy foods as often as they should.
The percentage of body fat needed for good health in men is __________.
Fill in the blank(s) with the appropriate word(s).