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1>number of people per 100 in the u.s. population who are at least 65 years old

2>dietary restriction of this extends lifespan in animals

3>loss of muscle mass

4>percentage of people over age 60 with atrophic gastritis

5>term that describes difficulty swallowing

6>a condition characterized, in part, by an inflamed stomach and abundant bacteria

7>lack of this substance is a symptom of atrophic gastritis

8>stomach bacterial utilization of this nutrient increases risk for deficiency

9>compounds of nitrogen-containing bases such as adenine, guanine, and caffeine

10>percent decline per decade in energy needs from age 50 and on

11>low intake of milk by elderly people contributes to deficiency of this nutrient

12>thickening of the eye lenses that occurs with aging

13>type of arthritis resulting in deterioration of joint cartilage

14>nutrient that may reduce inflammation of rheumatoid arthritic joints

15>type of arthritis involving a defective immune system

16>percentage of u.s. adults age 85 years and older with alzheimers disease

17>substance that is essential to the memory process

18>substance found in the brains of people with alzheimers disease

19>intake of this substance along with milk reduces calcium absorption

20>intake of this substance interferes with utilization of many cardiovascular and central nervous system drugs

a.5 b.13 c.33 d.50 e.energy f.cataracts g.vitamin d h.dysphagia i.beta-amyloid j.sarcopenia k.purines l.vitamin b12 m.tetracycline n.acetylcholine o.osteoarthritis p.grapefruit juice q.atrophic gastritis r.hydrochloric acid s.omega-3 fatty acids t.rheumatoid arthritis

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