In this post I will be
discussing micro and macronutrients and what their impact is on ones health and
well-being.
Micronutrients are vitamins and
minerals found in foods like bananas, spinach, beef, peppers, oranges, and
broccoli. Our bodies need theses
micronutrients in order to assist in the prevention and treatment of different
illnesses and diseases. For example,
micronutrients like Vitamins A helps with ones vision health and immune
function, vitamin B12 is needed for nerve function, Vitamin C provides
antioxidants for the blood cells and helps to support ones immune system while
minerals like calcium may help reduce blood pressure and helps in bone and teeth
development (Micronutrients for Health, n.d.).
Micronutrients are “needed in small amounts in order to help the body
produce enzymes, hormones, and other substances necessary for proper growth and
development” (Micronutrients, n.d., para. 1).
Micronutrients also play an important part in the body’s metabolism and
in maintaining tissue function (Shenkin, 2006).
Unlike micronutrients, macronutrients are needed in large amounts and are
only found in foods. These
macronutrients consist of “fats, protein, carbohydrates, and minerals such as
calcium” (Youdim, 2016, para. 7).
According to Sizer & Whitney (2017), there is an acceptable
“macronutrient distribution range which sets forth the intake range of
macronutrients necessary for the energy-yielding nutrients needed in order to
provide adequate total energy and nutrients while minimizing the risk of
chronic diseases” (p. 33). Americans
have been taught to follow the guidelines put forth by the American Heart
Association, which has recommended for the past 40 years that Americans control
and decrease the macronutrient of fat while increasing ones intake of whole
grains (carbohydrates) leading to an increase in obesity:
Consumption
of fats has dropped from 45 percent to 34 percent with a corresponding increase
in carbohydrate consumption from 39 percent to 51 percent of total caloric
intake. In addition, from 1971 to 2011, average weight and body mass index have
increased dramatically, with the percentage of overweight or obese Americans
increasing from 42 percent in 1971 to 66 percent in 2011 (Cohen, Cragg, et al.,
2015, results).
Furthermore,
one study showed that individuals who consumed a diet high in carbohydrates,
low in fat, low in proteins, and low calories had an increase risk for dementia
and mild cognitive impairment (Roberts, Roberts, et al., 2012, abstract).
One
thing is for sure; unbiased research is still needed in the areas of nutrition
and health.
References
Cohen,
E., Cragg, M., deFonseka, J., Hite, A., Rosenberg, M., & Zhou, B. (2015).
Applied nutritional investigation: Statistical review of US macronutrient
consumption data, 1965-2011: Americans have been following dietary guidelines,
coincident with the rise in obesity. Nutrition,
31727-732. doi:10.1016/j.nut.2015.02.007
Micronutrients.
(n.d.). Nutrition topics. Programmes.
World Health Organization. Retrieved from http://www.who.int/nutrition/topics/micronutrients/en/
Micronutrients
for Health [PDF File]. (n.d.). Linus
Pauling Institute Oregon State University. Retrieved from http://lpi.oregonstate.edu/sites/lpi.oregonstate.edu/files/pdf/mic/micronutrients_for_health.pdf
Roberts,
R. O., Roberts, L. A., Geda, Y. E., Cha, R. H., Pankratz, V. S., O’Connor, H.
M., Knopman, D. S., & Petersen, R. C. (2012, June 12). Relative intake of
macronutrients impacts risk of mild cognitive impairment or dementia. Articles. IOS Press Content Library. Journal of Alzheimer’s Disease. 32(2),
329-339. doi:10.3233/JAD-2012-120862
Shenkin,
A. (2006). Micronutrients in health and disease. BMJ Journals. Postgraduate
Medical Journal. 82(971), 559-567. Retrieved from http://pmj.bmj.com/content/82/971/559
Sizer,
F., & Whitney, E. (2017). Nutrion: Concepts and controversies (14th
ed). Cengage Learning: OH. Retrieved
from VitalSource Bookshelf
Youdim,
A. (2016, Oct). Overview of Nutrition. Nutrition: General considerations,
Nutritional disorders, Professional. Merck
Manual. Retrieved from http://www.merckmanuals.com/professional/nutritional-disorders/nutrition-general-considerations/overview-of-nutrition?qt=&sc=&alt=
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