Nutrition
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September 17, 2021

94% Of Americans Are Deficient In This Nutrient. Are You One?

Written By
Dr. Shawn Greenan DACM, CFMP®
Medically Reviewed by
Updated On
January 14, 2025

In America, many people consume diets that are high in calories but low in essential nutrients. Research indicates that Americans may not be getting enough of many important nutrients due to a diet lacking in variety and nutrient-rich foods. Our bodies need a range of vitamins and minerals to function well, and when these are missing, it can lead to increased hunger as the body seeks out these nutrients. Consuming foods that are high in calories but low in nutrients can lead to a state where one is consuming enough food but not enough essential nutrients, which can affect overall health.

Micronutrient malnutrition refers to health issues that can arise from not getting enough vitamins or minerals in the diet. Our bodies need these micronutrients for various functions, including supporting cell health, immune function, growth, metabolism, and development. Not getting enough of these nutrients over time may contribute to various health challenges.


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Percentage of Americans with Common Micronutrient Deficiencies

94.3% may not be getting enough vitamin D

91.7% may not be getting enough choline

88.5% may not be getting enough vitamin E

66.9% may not be getting enough vitamin K

52.2% may not be getting enough magnesium

44.1% may not be getting enough calcium

43.0% may not be getting enough vitamin A

38.9% may not be getting enough vitamin C

These numbers suggest a significant issue in a developed country. The Standard American Diet, along with factors like chronic disease, soil depletion, and medication use, can all contribute to these nutrient gaps.

The Standard American Diet

The Standard American Diet often includes many processed foods, which may not provide the nutrients needed for optimal health. Many Americans are affected by weight issues and chronic health conditions, which can be influenced by dietary choices. A large portion of the diet consists of processed foods and low-quality animal products, which may not provide the necessary micronutrients, antioxidants, and phytochemicals that support immune function, brain health, and overall well-being.

Chronic Disease and Inflammation Affect Nutrient Absorption

Recommended Daily Allowances (RDAs) for nutrients are based on the needs of generally healthy individuals. However, many people have chronic health conditions that can affect how nutrients are absorbed and utilized in the body. Inflammation, for example, can impact nutrient absorption.

Our Soil is Depleting Our Nutrients

Modern agricultural practices can affect the nutrient content of the soil, which in turn affects the nutritional quality of the food grown in it. Studies have shown declines in certain nutrients in fruits and vegetables over the years. Organic farming practices may help maintain higher nutrient levels in produce, but organic foods can be more expensive.

Nutrient Depletions Associated with Common Pharmaceuticals

Many adults take prescription medications, which can sometimes affect nutrient levels in the body. Some medications may impact how nutrients are absorbed, metabolized, or excreted.

Commonly Prescribed Pharmaceuticals and the Nutrients They Deplete

Other Factors Affecting Absorption of Micronutrients

Age

As people age, their nutrient needs can change. For example, older adults may need more of certain nutrients compared to younger individuals. Women of childbearing age have increased needs for nutrients like iron, iodine, and folate, while older adults may need more vitamin B12, vitamin D, and calcium.

Nutrient Synergy

Some nutrients work better when consumed together. For example, vitamin C can help the body absorb iron, and vitamin D can assist with calcium absorption. Eating healthy fats with vegetables can help the body absorb certain beneficial compounds and fat-soluble vitamins.

Where you live and the color of your skin affects vitamin D absorption

Sun exposure helps the body produce vitamin D. People living in northern latitudes or with darker skin may need more dietary vitamin D due to reduced sun exposure or the presence of melanin, which can affect vitamin D synthesis.

How to Increase Micronutrient Absorption

Eating a variety of whole, nutrient-dense foods is important. Diets like Paleo, Nutritarian, Whole 30, and Pegan encourage the consumption of whole foods and have been explored for their potential health benefits. It's important to consult with a healthcare provider before making significant dietary changes.

Testing nutrient levels can help identify specific deficiencies. It's important to use high-quality supplements if needed and to retest to ensure nutrient levels are improving. Consulting with a healthcare provider can help create a plan to address any nutrient absorption issues.

Remember, taking care of your health by staying active and eating a balanced diet rich in nutrients is important for overall well-being.

Note: The information provided in this content is based on a review of the literature available at the time of publication. While the content is considered to be accurate at the time of publication, new or updated research released after the publication date may impact the accuracy of the information.

Please use your discretion when using this resource and if you’re not a practitioner, always consult with your practitioner first when considering how to address micronutrient depletions.  

The information in this article is designed for educational purposes only and is not intended to be a substitute for informed medical advice or care. This information should not be used to diagnose or treat any health problems or illnesses without consulting a doctor. Consult with a health care practitioner before relying on any information in this article or on this website.

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Lab Tests in This Article

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Americans: Overfed and Undernourished. (2007, April). Retrieved from http://web.missouri.edu: Americans: Overfed and Undernourished

Bird, J. K., Murphy, R. A., Ciappio, E. D., & McBurney, M. I. (2017, July). Risk of Deficiency in Multiple Concurrent Micronutrients in Children and Adults in the United States. Retrieved from US National Library of Medicine National Institutes of Health: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5537775/

Davis, D. R., Epp, M. D., & Riordan, H. D. (2004, December). Changes in USDA food composition data for 43 garden crops, 1950 to 1999. Retrieved from Pubmed: https://pubmed.ncbi.nlm.nih.gov/15637215/

Drake, V. J. (2017, November). Micronutrient Inadequacies in the US Population: an Overview. Retrieved from Oregonstate.edu: https://lpi.oregonstate.edu/mic/micronutrient-inadequacies/overview
*This link leads to a website provided by the Linus Pauling Institute at Oregon State University.  Rupa Health is not affiliated or endorsed by the Linus Pauling Institute or Oregon State University

Elaine Magee, M. R. (2004). Food Synergy: Nutrients That Work Better Together. Retrieved from Web MD: https://www.webmd.com/food-recipes/features/food-synergy-nutrients-that-work-better-together

Health, United States, 2006. (2006). Retrieved from National Center for Health Statistics With Chartbook on Trends in the Health of Americans: https://www.cdc.gov/nchs/data/hus/hus06.pdf#093

Joel Fuhrman, M. (2018, April). US National Library of Medicine National Institutes of Health. Retrieved from The Hidden Dangers of Fast and Processed Food: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6146358/

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