Tag: Health Risks

  • Orange flesh foods, why are they good for you?

    Orange-fleshed foods like pumpkin, sweet potato, and carrots are quiet powerhouses for long-term health. Their color signals nutrients that protect your eyes, immune system, heart, and overall resilience across life.

    Orange flesh foods, why are they good for you?

    Orange-on-the-inside foods stand out because of their deep color, which usually comes from carotenoids such as beta carotene. These pigments do more than decorate your plate: they are converted in the body into vitamin A, essential for vision, immune function, and normal growth and development. Carotenoids also act as antioxidants, helping to neutralize free radicals that damage cells and accelerate processes linked with aging, from skin changes to cardiovascular disease.

    The science behind the color

    When you eat foods like pumpkin or carrots, enzymes in the gut convert beta carotene into vitamin A as needed, which means food sources are generally safer than high-dose vitamin A supplements. Vitamin A then supports the health of your eyes, skin, and the barrier tissues that line your gut and lungs, strengthening your first line of defense against infections and environmental stressors.​

    Carotenoids work alongside other nutrients in orange produce, such as vitamin C, vitamin E, and various polyphenols, to reduce chronic, low-grade inflammation. This slow-burning inflammation underlies many conditions that erode health span, including heart disease, cognitive decline, and type 2 diabetes. In simple terms: the color signals compounds that help your body repair, defend, and maintain itself.

    Pumpkin as a case study

    Pumpkin is a good illustration of why orange-fleshed foods fit so well into a longevity-focused diet. It is low in calories yet rich in fiber, potassium, magnesium, and iron, alongside high levels of beta carotene. This combination supports blood pressure regulation, muscle and nerve function, red blood cell production, and stable energy, making pumpkin a high “nutrient-per-calorie” food.

    The fiber in pumpkin and other orange vegetables slows digestion, smooths blood sugar swings, and increases satiety, which helps with weight management and long-term metabolic health. Over years and decades, these effects contribute to steadier energy, less strain on the pancreas, and better cardiovascular profiles—core elements of living longer and staying stronger.

    Cultural roots of orange foods

    Across food cultures, orange-fleshed plants have long been staples, particularly around harvest seasons and in “lean” months. In North America and Europe, pumpkins and winter squash feature in stews, porridges, and baked dishes that were traditionally relied upon to carry families through winter. In Asia, bright orange sweet potatoes and carrots anchor many everyday meals, while in parts of Africa and Latin America, orange-fleshed tubers and squashes are key sources of energy and micronutrients.

    These food traditions emerged because orange vegetables store well, grow reliably, and deliver dense nutrition when fresh variety is limited. Without the language of “antioxidants” or “beta carotene,” earlier generations intuitively placed these foods at the center of survival, recovery from illness, and preparation for hard physical work. Modern nutrition science largely validates that instinct.

    Orange foods across the CentoViva Life Arc

    Thinking in CentoViva’s Life Arc terms—Foundation, Transformation, Performance, Preservation, Resilience—clarifies how these foods earn their place at every age.

    Foundation (0–10 years)

    In childhood, the priority is building the body’s baseline: bones, muscles, immune system, and brain. Vitamin A from beta carotene supports normal growth, immune education, and the development of healthy vision, including adaptation to low light. At the same time, the fiber in pumpkin and sweet potatoes nourishes the gut microbiome, which plays an increasingly recognized role in immune training and metabolic programming early in life.

    Orange-fleshed vegetables are also a safer vitamin A source than preformed vitamin A supplements because the body converts only what it needs from carotenoids. This “self-limiting” conversion reduces the risk of excess, which can be an issue with high-dose supplements in young children. For parents, regularly including small portions of mashed pumpkin, carrot soups, or baked sweet potato is a straightforward way to support a strong foundation.

    Transformation (10–20 years)

    Adolescence is a period of rapid growth and hormonal change, where lifestyle patterns begin to “lock in.” During this Transformation stage, vitamin A continues to support tissue development and skin health, while carotenoids and other antioxidants help counter oxidative stress from growth spurts, academic pressure, and extensive screen exposure. Eye comfort and function become particularly relevant as screen time rises.

    Including orange vegetables in school lunches, family dinners, or quick snacks (such as roasted sweet potato wedges or carrot sticks with hummus) helps maintain peak bone, eye, and immune health heading into adulthood. This is also when food routines solidify; building a habit of “one colorful vegetable at most meals” can shape risk for chronic disease decades later.

    Performance (20–40 years)

    The Performance stage is often defined by long workdays, high cognitive load, social commitments, and sometimes athletic training or intensive exercise. Here, orange-fleshed foods support several performance-critical systems at once. Vitamin A and carotenoids help maintain eye health in the face of prolonged screen use, reducing strain and supporting night vision for those who commute or drive after dark. Antioxidants and anti-inflammatory compounds help the body recover from both physical and psychological stress.

    Fiber and potassium in pumpkin, sweet potatoes, and carrots support cardiovascular stability and blood pressure control, buffering some of the impact of sedentary time, high-salt convenience foods, and work-related stress. Consistently pairing high-performance years with nutrient-dense, color-rich meals can reduce midlife risk of hypertension, insulin resistance, and early vascular damage.

    Preservation (40–60 years)

    During the Preservation stage, the task shifts from reaching new peaks to maintaining what has been built: bone density, muscle mass, cardiovascular health, and cognitive clarity. Hormonal transitions—such as perimenopause and andropause—can affect body composition, metabolism, and recovery. The antioxidants in orange-fleshed foods help protect blood vessels and reduce oxidative stress that contributes to plaque formation and arterial stiffness.

    At the same time, fiber helps manage cholesterol and blood sugar, while potassium supports blood pressure, making orange vegetables valuable allies against heart disease and stroke risk in midlife. Carotenoids also support skin health and may help mitigate some visible signs of aging by contributing to collagen maintenance and protection against photo-damage. Regular inclusion of pumpkin soups, roasted squash, and carrot or sweet potato sides aligns directly with the goal of preserving vitality rather than simply “getting by.”

    Resilience (60+ years)

    In the Resilience stage, priorities sharpen around independence: maintaining mobility, protecting vision and cognition, and preventing infections. Vitamin A and carotenoids are central to keeping the eyes and immune system functioning well, reducing the risk of night blindness, supporting the cornea and retina, and maintaining barrier defenses in the gut and lungs. Vision preservation alone can have an outsized impact on fall risk, driving ability, and social engagement.

    Fiber becomes even more important with age as digestion may slow and the risk of constipation, blood sugar swings, and cholesterol issues rises. The combination of fiber, potassium, and magnesium in orange vegetables supports regularity, cardiovascular stability, and muscle function, which together underpin balance, strength, and daily stamina. For older adults, modest but consistent portions—such as pumpkin in porridge, carrot and lentil soups, or soft roasted sweet potato—can deliver significant resilience benefits.

    How to use orange foods day to day

    To put this into practice, think in terms of simple, repeatable habits rather than complicated recipes. A useful target is one orange fruit or vegetable on most days, rotated for variety: pumpkin or winter squash, sweet potato, carrots, orange bell peppers, or orange-fleshed melons. The goal is to make “something orange” on your plate a visual cue for nutrient density and long-term maintenance.

    Because carotenoids are fat-soluble, pairing them with a small amount of healthy fat improves absorption. Roasting pumpkin or carrots in olive oil, adding avocado or nuts to a salad with orange peppers, or stirring a spoonful of nut butter into mashed sweet potato are all simple examples. Across seasons, you can adapt: hearty pumpkin soups and roasted squash in colder months; raw carrots, peppers, and melon in warmer ones.

    Supplements containing beta carotene or vitamin A can play a role as support tools if intake from food is clearly inadequate or if medically indicated, but they should not replace whole foods. Very high-dose isolated beta carotene supplements are not recommended, especially for smokers or those with certain lung conditions, because some clinical trials have linked them to increased health risks in those groups. Food-based carotenoids, in contrast, are widely considered safe when part of a balanced, plant-forward pattern.

    The CentoViva perspective

    From a CentoViva standpoint, orange-fleshed foods are not magic bullets, but they are reliable, high-impact building blocks for a longer and stronger life. They feed critical systems—eyes, immune defenses, cardiovascular function, skin, and metabolic health—while providing fiber and minerals that quietly support stability at every stage. By making “something orange” a regular part of your meals, you create a low-effort, high-leverage habit that supports Foundation in childhood, protects Performance in adulthood, and reinforces Resilience in later years.

    References:

    1. https://ods.od.nih.gov/factsheets/VitaminA-HealthProfessional/
    2. https://pmc.ncbi.nlm.nih.gov/articles/PMC11606860/
    3. https://www.healthline.com/nutrition/vitamin-a-benefits
    4. https://www.healthline.com/health/beta-carotene-benefits
    5. https://www.healthline.com/nutrition/pumpkin-nutrition-review
    6. https://www.utphysicians.com/the-power-of-pumpkin-health-benefits-of-this-seasonal-superfood/
    7. https://www.mayoclinichealthsystem.org/hometown-health/speaking-of-health/pumpkin-loaded-with-scary-good-nutrients
    8. https://publications.mgcafe.uky.edu/sites/publications.ca.uky.edu/files/FCS3569.pdf
    9. https://www.fyp365.com/the-benefits-of-eating-orange/
    10. https://www.webmd.com/diet/health-benefits-red-orange-vegetables
    11. https://www.nvisioncenters.com/diet-and-eye-health/beta-carotene/
    12. https://nutritionsource.hsph.harvard.edu/vitamin-a/

  • Japan’s ~500 pg/mL versus the typical Western cutoff of 200 pg/mL. Why not follow Japan?

    Using a higher vitamin B12 cutoff for defining deficiency, such as Japan’s approach (~500 pg/mL versus the typical Western cutoff of 200 pg/mL), has some potential risks and considerations:

    Potential Risks of a Higher B12 Cutoff

    1. Overdiagnosis and Overtreatment
      • Higher cutoff values may lead to diagnosing more individuals as B12 deficient or borderline, including those with adequate clinical status. This can result in unnecessary testing, treatment, and healthcare costs.pulsetoday
    2. Supplementation Side Effects
      • While vitamin B12 is generally considered safe due to its water-solubility, high doses (especially injections) can sometimes cause side effects like headaches, dizziness, nausea, or allergic reactions.healthline+1
      • Rare but serious adverse reactions like anaphylactic shock have been reported with injectable B12.vinmec
    3. False Positives and Patient Anxiety
      • Raising cutoffs without considering comprehensive biomarkers (e.g., methylmalonic acid) risks false positives, causing anxiety and possibly unnecessary interventions.pmc.ncbi.nlm.nih+1
    4. Associations with Elevated B12 and Health Risks
      • Some studies show that very high serum B12 levels (>800–1000 pg/mL) may correlate with increased all-cause mortality or cancer risk, though this is likely due to underlying disease rather than supplementation itself.ods.nih+3
      • Continuous monitoring is advised in high-level cases to rule out hidden conditions.

    Summary

    • A higher cutoff may enhance sensitivity for early deficiency detection, possibly preventing neurological damage.
    • However, it can lead to overdiagnosis and overtreatment, with associated costs and mild side effects.
    • It is important to combine B12 level testing with clinical evaluation and supporting biomarkers to avoid unnecessary treatment.
    • The risks from high B12 intake itself are generally low but should not be overlooked, particularly with injectable forms.

    Clinicians and policymakers should weigh the benefits of proactive detection against the potential for overmedicalization when adopting higher B12 cutoff values.


    References

    • NIH Vitamin B12 Fact Sheet, 2025ods.nih
    • Medical News Today on B12 side effects, 2025medicalnewstoday
    • Healthline on B12 side effects, 2025healthline
    • Pulse Today on overdiagnosis of B12 deficiency, 2023pulsetoday
    • Systematic reviews on high B12 and mortality risks, 2023-2025rupahealth+2
    • Vinmec article on excess vitamin B12 effects, 2025vinmec
    1. https://www.pulsetoday.co.uk/clinical-feature/clinical-areas/obesity-and-nutrition/overdiagnosis-b12-deficiency/
    2. https://www.healthline.com/health/food-nutrition/vitamin-b12-side-effects
    3. https://www.drugs.com/sfx/vitamin-b12-side-effects.html
    4. https://www.vinmec.com/eng/blog/harm-when-excess-or-deficiency-of-vitamin-b12-en
    5. https://pmc.ncbi.nlm.nih.gov/articles/PMC6614102/
    6. https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/
    7. https://www.ncbi.nlm.nih.gov/search/research-news/8501
    8. https://www.rupahealth.com/post/high-vitamin-b12-levels-causes-symptoms-and-what-to-do-next
    9. https://www.sciencedirect.com/science/article/abs/pii/S0167494323003084
    10. https://www.medicalnewstoday.com/articles/326187
    11. https://www.mayoclinic.org/drugs-supplements-vitamin-b12/art-20363663
    12. https://www.webmd.com/vitamins/ai/ingredientmono-926/vitamin-b12
    13. https://www.ajmc.com/view/analysis-says-excessive-vitamin-b12-concentration-can-increase-mortality-risk
    14. https://www.healthline.com/nutrition/too-much-vitamin-b12
    15. https://pmc.ncbi.nlm.nih.gov/articles/PMC4919119/
    16. https://www.health.harvard.edu/blog/vitamin-b12-deficiency-can-be-sneaky-harmful-201301105780
    17. https://www.sciencedirect.com/science/article/abs/pii/S0009898123000694
    18. https://www.ncbi.nlm.nih.gov/books/NBK559132/
    19. https://www.ucsf.edu/news/2025/02/429491/healthy-vitamin-b12-levels-not-enough-ward-neuro-decline
    20. https://www.bmj.com/rapid-response/2011/11/02/re-over-diagnosis-and-treatment-b12-deficiency-primary-and-secondary-care
  • Better care with CarePlus: Preventative Screenings in Primary Care

    What if the most important health conditions could be caught early, right at your doctor’s office, without needing multiple appointments, specialists, or delays?

    CarePlus by HealthOcta is a new kind of technology platform built to transform how and where preventative healthcare happens. By enabling diagnostic screenings at the point of primary care, CarePlus helps identify critical health risks earlier, improving outcomes for patients, reducing long-term costs for payers, and empowering providers with better tools.


    What Is CarePlus?

    CarePlus is a software-powered screening platform that equips primary care offices with the tools, training, and workflows to deliver preventative health screenings during routine checkups. Screenings are either automated through structured questionnaires or powered by onsite imaging devices whose results are reviewed remotely by specialists on the CarePlus network.

    Our goal is simple but powerful: Bring preventative care to the frontline of medicine, the Primary Care Provider (PCP).


    What Problems Does CarePlus Solve?

    Preventative screenings are underutilized, despite their proven impact. Why?

    • They often require referrals, separate appointments, or specialized clinics
    • Many practices lack equipment or trained staff
    • Follow-through is low: patients don’t always act on referrals
    • Insurers bear the cost of avoidable disease progression

    CarePlus solves this by:

    • Embedding screenings into routine PCP workflows
    • Providing devices and software directly to the clinic
    • Training staff to capture the data without specialist supervision
    • Enabling remote reviews by credentialed specialists
    • Supporting proper documentation and payer reimbursement

    Our First Solution: Diabetic Retinopathy Screening

    We’re launching CarePlus with a major public health challenge in mind: diabetic retinopathy, the leading cause of blindness in working-age adults.

    Why this matters:

    • Over 38 million Americans are diabetic or prediabetic
    • Eye exams are often skipped due to cost, time, logistics or simply the lack of proactive interest by a patient
    • Retinopathy is preventable if caught early

    How CarePlus Works:

    • A smart fundoscope is provided to PCP clinics
    • Medical assistants are trained to capture retinal images during the patient visit
    • Images are uploaded securely and read by licensed ophthalmologists in the CarePlus network
    • PCPs are notified of the results, and at-risk patients are referred
    • Payers reimburse both the screening and reading
    • Patients get better care, without extra effort or delays

    What’s Next: Expanding the Scope of Preventative Screening

    CarePlus is designed to be modular and extensible. Beyond retinopathy, we’re actively developing and validating new screening modules:

    In Development:

    • Mental Health Screenings
      Using evidence-based questionnaires (PHQ-9, GAD-7, PCL-5), patients can be screened during visits with automated scoring and referral guidance. This is especially valuable as depression and anxiety go undetected in over 50% of primary care encounters.
    • Peripheral Artery Disease (ABI Testing)
      Early detection can prevent major cardiovascular complications.
    • Chronic Kidney Disease Screening
      With early indicators flagged via simple urinalysis or eGFR integration.
    • Cognitive Impairment / Dementia Screening
      Tools for aging populations using structured assessments (e.g., MoCA).
    • Spirometry for COPD and Asthma Management
      Lung function testing, simplified for use by PCP staff and reviewed remotely.

    Our Vision

    Preventative care should be:

    • Accessible at the point of contact
    • Affordable through payer-aligned workflows
    • Actionable with structured follow-up
    • Scalable across practices and populations

    CarePlus brings all of that together, starting with real tools, in real clinics, solving real problems.


    📩 Want to partner with us or learn how CarePlus can support your clinic or health system?
    Reach out at [email protected] or visit www.healthocta.com/careplus