Posted on

LMU 76 – Unveiling Nutritional Deficiencies in Aging: A Closer Look at Vitamin D, B12, and More


LMU 76 – Unveiling Nutritional Deficiencies in Aging: A Closer Look at Vitamin D, B12, and More

NMU 76 – Vitamin Deficiencies Common in Aging: How to identify them and prevent consequences

Lifestyle Medicine Update (December 20, 2017)


As the pages of time turn and we venture into the realm of aging, an illuminating study beckons our attention, shedding light on the profound impact of nutritional deficiencies on our golden years. Published in the journal Nutrients in 2017, this study delves into the lives of an aging population in southern Germany, uncovering startling revelations about the prevalence of sub-optimal levels of essential micronutrients such as vitamin D, B12, iron, and folate. In this exploration, we unearth the significance of these deficiencies, their consequences, and the empowerment that lies within annual blood tests.

The Aging Enigma: Unveiling the KORA-Age Study

Encompassing the canvas of aging, the KORA-Age Study embarked on a mission to scrutinize the lives of 1,079 older adults, spanning from ages 65 to 93 years. This remarkable endeavor, undertaken by the KORA Cooperative Health Research platform, delved into the depths of four vital micronutrients – vitamin D, folate, vitamin B12, and iron. What emerged from this canvas of investigation was a tapestry of revelations, illuminating the prevalence of sub-optimal levels of these micronutrients in the aging populace.

Unmasking Vitamin D Insufficiency

The spotlight turns to vitamin D, a renowned ally in the battle against a myriad of ailments, from cancer to osteoporosis and diabetes. The study cast a revealing light, showcasing that over 50% of the examined older adults bore blood levels of vitamin D below 50 nmol/L, indicating a suboptimal status. This finding strikes a chord, considering the recommended level for optimal prevention stands at 75 nmol/L or higher. The research resonates as a cautionary tale, hinting at the need to address this prevalent deficiency to safeguard against the ravages of various health maladies.

Vitamin B12: A Memory’s Guardian

Vitamin B12, a sentinel for memory and cognition, takes center stage. The study unfurls a disconcerting truth – 27% of the elderly subjects bore blood levels of vitamin B12 below the established threshold. Beyond its role in preventing anemia, vitamin B12 wields its influence in the realms of memory and cognitive function. Its absence can unleash memory loss and dementia-related symptoms, as B12 plays a pivotal role in crafting brain neurotransmitters crucial for memory retention. This revelation underscores the imperative of addressing this deficiency early to preserve cognitive prowess and stave off the shadows of memory loss.

Folate and Iron: Guardians of Vitality

Folate and iron, unassuming yet vital players, unfurl their significance on this stage. The study exposes the sobering truth – 9% of participants grappled with low folate levels, while 11% bore the burden of low iron levels. These deficiencies are harbingers of subtle yet impactful consequences. Folate and vitamin B12 deficiencies herald memory loss and cognitive impairment, disrupting the delicate equilibrium of brain health. Iron, even in its marginal scarcity, can sow the seeds of low energy, memory lapses, concentration struggles, and weakened resistance to infections. These findings serve as a clarion call to address these deficiencies to preserve vitality and overall well-being.

Annual Blood Tests: A Beacon of Empowerment

In the realm of health, knowledge is power, and annual blood tests stand as the beacon of this empowerment. The study underscores the value of monitoring blood levels of these essential micronutrients. It beckons individuals to advocate for themselves, urging them to request comprehensive tests during their annual physical exams. While some insurance plans might not cover tests for vitamin D or homocysteine, their impact on health is immeasurable. The revelations these tests unveil provide a roadmap to potential future diseases, spurring individuals to take charge of their well-being.

The Path Forward: Nurturing Optimal Health

In the grand tapestry of life, aging is a chapter that deserves to be written with vibrancy, vitality, and resilience. The study’s findings echo a universal truth – to nurture health and well-being, one must be proactive. Regular monitoring of blood levels, particularly for vitamin D, B12, folate, iron, and homocysteine, holds the key to longevity and disease-free living. Armed with this knowledge, individuals can embrace the journey ahead with the assurance that their bodies and minds are fortified against the challenges of time.


As the curtain falls on the pages of this study, a narrative of empowerment emerges. The echoes of deficiency dissolve into the promise of proactive measures. The insights gained from this study transcend mere numbers, resonating as a call to action for all seeking a vibrant and thriving life. With the tapestry of aging before us, armed with the knowledge gleaned from annual blood tests, we can navigate the journey with vitality and resilience, embracing each chapter with the grace of well-nourished minds and bodies.


  1. Conzade R, et al. Prevalence and Predictors of Subclinical Micronutrient Deficiency in German Older Adults: Results from the Population-Based KORA-Age Study. Nutrients 2017, 9(12), 1276
  2. [Link to the Study] (

Eat Smart, Live Well, Look Great,

Dr. Meschino

Dr. James Meschino


Dr. James Meschino, DC, MS, ROHP, is an educator, author, and researcher having lectured to thousands of healthcare professionals across North America. He holds a Master’s Degree in Science with specialties in human nutrition and biology and is recognized as an expert in the field of nutrition, anti-aging, fitness, and wellness as well as the author of numerous books.

Share this: