Angel Options, Registered Dietitian Nutritionist Nationwide Media Spokesperson, Academy of Nourishment and Dietetics.

James Powers, MD, Vanderbilt University Healthcare Middle, Nashville Affiliate Director, Tennessee Valley VA Geiatric Investigation, Education and learning and Scientific Center (GRECC).

US Office of Agriculture and US Section of Health and Human Products and services: Nutritional Tips for People in america, 2020–2025, 9th ed., December 2020.

Public well being diet: “Strength needs and growing old.”

Merck Handbook, Purchaser Edition: “Undernutrition,” “Outcomes of Growing older on Digestive Systems.”

Countrywide Institutes of Well being, Business office of Nutritional Health supplements: “Calcium,” “Vitamin D”

Countrywide Osteoporosis Foundation: “Calcium: an essential nutrient that builds sturdy bones.”

Academy of Nourishment and Dietetics: “Older Grown ups Will need Distinctive Nutrition.”

MedlinePlus: “Proteins in the Diet regime,” “Proton Pump Inhibitors.”

Getting old Analysis Opinions: “Hypertension and Getting older.”

Cleveland Clinic. “Esophageal Strictures.”