A study published in JAMA Ophthalmology has found that elderly individuals with an intake of more than 800 milligrams of calcium a day are twice as likely to be diagnosed with age-related macular degeneration (AMD). The study included 3,191 people ages 40 and older. The link to AMD, which causes severe vision loss, was only found in people 68 years of age and older. The participants self-reported their use of calcium supplements. The results were that 248 people diagnosed with AMD. Although the link between AMD and calcium intake is interesting, the study did not prove a causal relationship. The self-reporting of the amount of calcium intake may not have been accurate for all participants. Furthermore, researchers did not evaluate the possible effects of calcium intake from one’s diet can have on the results. What are your thoughts about these findings? How often do you discuss calcium intake with your patients?
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