Nexium 24HR Clearminis Side Effects & Health Impacts

Low or depleted magnesium levels are associated with a higher likelihood of several cardiovascular problems, including arrhythmias, where people with low magnesium have been shown to have 2–4 times higher odds of these rhythm disturbances compared with those with normal levels. Low magnesium is also linked to worsening coronary artery disease, progression of heart failure, and development or aggravation of hypertension, driven by disrupted cardiac electrical stability, vascular function, and electrolyte balance. Even mild magnesium depletion may contribute to higher blood pressure over time, adding to the overall cardiovascular burden, especially in individuals with existing heart disease or multiple risk factors.

Research: Kolte D, Vijayaraghavan K, Khera S, Sica DA, Frishman WH. Role of magnesium in cardiovascular diseases. Cardiol Rev. 2014 Jul-Aug;22(4):182-92. Vierling W, Liebscher DH, Micke O, von Ehrlich B, Kisters K. Magnesium deficiency and therapy in cardiac arrhythmias: recommendations of the German Society for Magnesium Research. Dtsch Med Wochenschr. 2013 May;138(22):1165-71. Houston M. The role of magnesium in hypertension and cardiovascular disease. J Clin Hypertens (Greenwich). 2011 Nov;13(11):843-7. Yin Y, Costello RB, Fonarow GC, Heidenreich PA, Morgan CJ, Faselis C, Cheng Y, Zullo AR, Liu S, Lam PH, Rosanoff A, Vargas JD, Gottlieb SS, Deedwania P, Moore HJ, Shao Y, Sheriff HM, Wu WC, Zeng-Treitler Q, Ahmed A. Oral magnesium and outcomes in US veterans with heart failure. Eur Heart J. 2026 Jan 5;47(1):80-90.

Across the lifespan, chronically low calcium intake has been linked to higher blood pressure, in part because calcium plays a key role in vascular smooth‑muscle contraction, sodium handling, and endothelial function. Large epidemiologic studies and randomized trials suggest that individuals with higher dietary calcium intake tend to have modestly lower systolic and diastolic blood pressures and may experience a small but meaningful reduction in risk of stroke and other cardiovascular events. The practical takeaway is that maintaining adequate daily calcium, alongside blood pressure control, exercise, and a heart‑healthy diet, may be an underutilized strategy to support vascular health and reduce long‑term cardiovascular risk.

Research: Kim MH, Bu SY, Choi MK. Daily calcium intake and its relation to blood pressure, blood lipids, and oxidative stress biomarkers in hypertensive and normotensive subjects. Nutr Res Pract. 2012 Oct;6(5):421-8. Hamer O, Mohamed A, Ali-Heybe Z, Schnieder E, Hill JE. Calcium supplementation for the prevention of hypertension: a synthesis of existing evidence and implications for practise. Br J Card Nurs. 2024 Feb 24;19(2):0010. Cheng, L., Lian, J., Ding, Y., Wang, X., Munir, M. A. M., Ullah, S., Wang, E., He, Z., & Yang, X. (2024). Calcium deficiency and its implications for cardiovascular disease and cancer: Strategies for resolution via agronomic fortification. Food Science & Nutrition, 12, 8594–8607.

Low or depleted magnesium levels place people with diabetes and metabolic syndrome (MetSyn) at higher risk of worsening glycemic control and insulin resistance because magnesium is essential for normal glucose metabolism and beta-cell function. When magnesium is low, these metabolic pathways become less efficient, amplifying blood sugar instability, lipid abnormalities, and other MetSyn features. Even moderate depletion can accelerate type 2 diabetes and MetSyn-related complications, underscoring the need for monitoring magnesium status in these vulnerable groups.

Research: Gommers LM, Hoenderop JG, Bindels RJ, de Baaij JH. Hypomagnesemia in Type 2 Diabetes: A Vicious Circle? Diabetes. 2016 Jan;65(1):3-13. Ozcaliskan Ilkay H, Sahin H, Tanriverdi F, Samur G. Association Between Magnesium Status, Dietary Magnesium Intake, and Metabolic Control in Patients with Type 2 Diabetes Mellitus. J Am Coll Nutr. 2019 Jan;38(1):31-39. Mooren FC. Magnesium and disturbances in carbohydrate metabolism. Diabetes Obes Metab. 2015 Sep;17(9):813-23. Paladiya R, Pitliya A, Choudhry AA, Kumar D, Ismail S, Abbas M, Naz S, Kumar B, Jamil A, Fatima A. Association of Low Magnesium Level With Duration and Severity of Type 2 Diabetes. Cureus. 2021 May 27;13(5):e15279. Ju SY, Choi WS, Ock SM, Kim CM, Kim DH. Dietary magnesium intake and metabolic syndrome in the adult population: dose-response meta-analysis and meta-regression. Nutrients. 2014 Dec 22;6(12):6005-19.

Impacted through 2 nutrients: Magnesium, Calcium.

Magnesium depletion can contribute to neurological issues like migraines, depression, seizures, and cognitive impairment by disrupting neuronal excitability, neurotransmitter balance, and NMDA receptor function. Case reports often describe severe symptoms such as tremors, encephalopathy, cerebellar ataxia, or memory problems in affected patients, which typically resolve once magnesium levels are restored. Although these effects occur less frequently than cardiovascular complications, monitoring is advisable particularly in older adults with persistent low magnesium.

Research: Chen F, Wang J, Cheng Y, Li R, Wang Y, Chen Y, Scott T, Tucker KL. Magnesium and Cognitive Health in Adults: A Systematic Review and Meta-Analysis. Adv Nutr. 2024 Aug;15(8):100272. Kumar A, Mehan S, Tiwari A, Khan Z, Gupta GD, Narula AS, Samant R. Magnesium (Mg2+): Essential Mineral for Neuronal Health: From Cellular Biochemistry to Cognitive Health and Behavior Regulation. Curr Pharm Des. 2024;30(39):3074-3107. Varga P, Lehoczki A, Fekete M, Jarecsny T, Kryczyk-Poprawa A, Zábó V, Major D, Fazekas-Pongor V, Csípő T, Varga JT. The Role of Magnesium in Depression, Migraine, Alzheimer's Disease, and Cognitive Health: A Comprehensive Review. Nutrients. 2025 Jul 4;17(13):2216. Mauskop A, Varughese J. Why all migraine patients should be treated with magnesium. J Neural Transm (Vienna). 2012 May;119(5):575-9.

Vitamin C deficiency weakens collagen in capillary and vascular walls, so severe scurvy can present with ocular hemorrhages in the conjunctiva and retina that threaten vision if not treated. Case reports and small series describe retinal hemorrhages, flame‑shaped hemorrhages, and even retrobulbar bleeding compressing the optic nerve, which can lead to optic neuropathy and visual loss in advanced cases. The encouraging point is that, when vitamin C deficiency is recognized early and promptly repleted, many ocular hemorrhages and visual symptoms can partially or fully resolve, making it critical to consider vitamin C status in patients with otherwise unexplained ocular bleeding and visual complaints.

Research: Errera MH, Dupas B, Man H, Gualino V, Gaudric A, Massin P. Une cause inhabituelle d'anomalies rétiniennes, hémorragies rétiniennes révélatrices de scorbut [Unusual retinal abnormality: retinal hemorrhages related to scurvy]. J Fr Ophtalmol. 2011 Mar;34(3):186.e1-3. Masuda Y, Saigusa K, Norisue Y. A Case of Scurvy Associated With Intracerebral Hemorrhage in a Patient With Alcohol Use Disorder. Cureus. 2024 Feb 23;16(2):e54777. Andrew Go Lee, et al. Ocular Manifestations of Vitamin C Deficiency. American Academy of Opthamology. November 2025. A. Martel, et al. Spontaneous eyelid and subconjunctival socket bleeding related to vitamin C deficiency: First case reportHémorragie palpébrale et sous conjonctivale spontanée sur cavité anophtalme secondaire à un déficit en vitamine C : premier cas rapporté. Journal Français d'Ophtalmologie. Volume 43, Issue 9, November 2020.

In some patients, significant calcium deficiency leading to hypocalcemia can present with acute respiratory manifestations such as laryngospasm and bronchospasm, often in the context of generalized neuromuscular irritability and tetany. Case reports describe episodes of stridor, tightness in the chest, and even acute respiratory distress that improve as ionized calcium levels are corrected. The key clinical implication is that, when otherwise unexplained laryngospasm or bronchospasm occurs alongside perioral numbness, carpopedal spasm, or muscle cramps, prompt evaluation and correction of calcium deficiency can be lifesaving and help prevent recurrent respiratory compromise.

Research: Kennedy J, Pérusse L, Drapeau V, Tremblay A. Cardiorespiratory Fitness in Low Calcium Consumers: Potential Impact of Calcium Intake on Cardiorespiratory Fitness. Nutrients. 2025; 17(19):3138. Kumari A, Nangrani K, Dolkar T, Arora A, Schmidt M. Hypocalcemia Induced Bronchospasm. Cureus. 2022 Jun 26;14(6):e26339. Thongprayoon C, Cheungpasitporn W, Chewcharat A, et al. Serum ionised calcium and the risk of acute respiratory failure in hospitalised patients: a single-centre cohort study in the USA. BMJ Open 2020;10:e034325. Li X, Li Z, Ye J, Ye W. Association of dietary calcium intake with chronic bronchitis and emphysema. J Health Popul Nutr. 2025 Apr 2;44(1):102.

Impaired renal magnesium reabsorption from low or depleted magnesium levels carries a notable association with worse kidney outcomes, shown by adjusted odds ratios of 1.7–3.0 in affected patients. This contributes to electrolyte imbalances and may worsen overall kidney function over time, with studies reporting hypomagnesemia in nearly a quarter of patients who already have impaired renal function. Monitoring renal function and magnesium status remains crucial for at-risk individuals to avert complications such as acute kidney injury or hospitalization.

Research: Ferrè S, Li X, Adams-Huet B, Maalouf NM, Sakhaee K, Toto RD, Moe OW, Neyra JA. Low serum magnesium is associated with faster decline in kidney function: the Dallas Heart Study experience. J Investig Med. 2019 Aug;67(6):987-994.Steven Van Laecke, Wim Van Biesen, Raymond Vanholder, Hypomagnesaemia, the kidney and the vessels, Nephrology Dialysis Transplantation, Volume 27, Issue 11, November 2012, Pages 4003–4010. Sarah Cascaes Alves, Cristiane Damiani Tomasi, Larissa Constantino, Vinícius Giombelli, Roberta Candal, Maria de Lourdes Bristot, Maria Fernanda Topanotti, Emmanuel A. Burdmann, Felipe Dal-Pizzol, Cassiana Mazon Fraga, Cristiane Ritter, Hypomagnesemia as a risk factor for the non-recovery of the renal function in critically ill patients with acute kidney injury, Nephrology Dialysis Transplantation, Volume 28, Issue 4, April 2013, Pages 910–916. Liu Z, Wang R, He M, Kang Y. Hypomagnesemia Is Associated with the Acute Kidney Injury in Traumatic Brain Injury Patients: A Pilot Study. Brain Sci. 2023 Mar 31;13(4):593.

When vitamin C runs low, its impact isn’t just skin‑deep, it can also affect the heart and lungs, sometimes contributing to shortness of breath, fatigue, and fluid retention. Severe vitamin C deficiency has been reported as a reversible cause of pulmonary hypertension and right‑sided heart failure, with pressures in the lung circulation and cardiac strain improving after vitamin C is replaced. Broader cardiovascular research also links low vitamin C with higher blood pressure and stiffer arteries, while short‑term supplementation in some hypertensive or diabetic patients has lowered systolic blood pressure and improved arterial stiffness, suggesting that adequate vitamin C helps support healthier vascular tone and cardiac workload.

Research: Kurnick A, Zaveri S, Tadayoni A, Chandrakumar HP, John S. Reversible severe pulmonary hypertension and right heart failure with cardiogenic shock due to scurvy: a case report. Eur Heart J Case Rep. 2023 Aug 17;7(8):ytad404. Duvall MG, Pikman Y, Kantor DB, Ariagno K, Summers L, Sectish TC, Mullen MP. Pulmonary hypertension associated with scurvy and vitamin deficiencies in an autistic child. Pediatrics. 2013 Dec;132(6):e1699-703. Abe K, Kibe R, David K, Reddy V, Allard B, Fakaosita M. Reversible right-sided heart failure and pulmonary hypertension caused by scurvy in a 7-year-old boy with autism spectrum disorder and a review of the literature. Paediatr Int Child Health. 2023 Nov;43(4):95-99. Conte L, Louden J, Weber LA. Multivalve dysfunction and cardiogenic shock linked to scurvy: A case report. Anatol J Cardiol. 2021 May;25(5):355-359.

Magnesium depletion undermines healthy aging by disrupting key hallmarks like mitochondrial dysfunction, chronic inflammation, genomic instability, and autophagy, which impair cellular resilience and multisystem longevity. Even beyond specific risks in cardio, metabolic, renal, bone, and neuro categories, mild hypomagnesemia compounds broader age-related vulnerabilities, accelerating frailty and reduced healthspan in older adults. Observational data and mechanistic studies highlight consistent multisystem impacts in elderly individuals with low magnesium.

Research: de Baaij JH, Hoenderop JG, Bindels RJ. Magnesium in man: implications for health and disease. Physiol Rev. 2015 Jan;95(1):1-46. Dominguez LJ, Veronese N, Barbagallo M. Magnesium and the Hallmarks of Aging. Nutrients. 2024 Feb 9;16(4):496. Barbagallo, M., Dominguez, L.J. (2018). Magnesium Role in Health and Longevity. In: Malavolta, M., Mocchegiani, E. (eds) Trace Elements and Minerals in Health and Longevity. Healthy Ageing and Longevity, vol 8. Springer, Cham. Matek Sarić M, Sorić T, Juko Kasap Ž, Lisica Šikić N, Mavar M, Andruškienė J, Sarić A. Magnesium: Health Effects, Deficiency Burden, and Future Public Health Directions. Nutrients. 2025 Nov 20;17(22):3626.

Magnesium depletion can contribute to obesity through disrupted metabolic signaling, insulin sensitivity, and gut microbiota shifts that favor fat storage. Low magnesium impairs energy homeostasis and promotes low-grade inflammation, potentially worsening weight gain in susceptible individuals, especially those with poor diets. Mechanistic and observational links, though not yet confirmed by large RCTs, support monitoring body composition to address this reversible concern.

Research: Al Shammaa A, Al-Thani A, Al-Kaabi M, Al-Saeed K, Alanazi M, Shi Z. Serum Magnesium is Inversely Associated with Body Composition and Metabolic Syndrome. Diabetes Metab Syndr Obes. 2023 Jan 12;16:95-104. Lu L, Chen C, Yang K, Zhu J, Xun P, Shikany JM, He K. Magnesium intake is inversely associated with risk of obesity in a 30-year prospective follow-up study among American young adults. Eur J Nutr. 2020 Dec;59(8):3745-3753. Oliveira AR, Cruz KJ, Severo JS, Morais JB, Freitas TE, Araújo RS, Marreiro DD. Hypomagnesemia and its relation with chronic low-grade inflammation in obesity. Rev Assoc Med Bras (1992). 2017 Feb;63(2):156-163. Cazzola R, Della Porta M, Piuri G, Maier JA. Magnesium: A Defense Line to Mitigate Inflammation and Oxidative Stress in Adipose Tissue. Antioxidants (Basel). 2024 Jul 24;13(8):893.

Even a modest shortfall in vitamin C can leave the immune system less resilient, showing up as more frequent colds, flus, or lingering infections that are slow to clear. Vitamin C concentrates to very high levels inside neutrophils, where it helps fuel their oxidative burst, regulate antioxidant enzymes, and support normal cell survival, so low vitamin C can mean these “first‑responder” white blood cells do not work at full strength. Clinical trials are mixed but intriguing: in a substantial subset of studies, vitamin C supplementation improved neutrophil functions such as oxidative burst, antioxidant enzyme activity, and even reduced premature neutrophil cell death in very sick patients, suggesting that correcting low vitamin C may help the body respond more effectively when infections strike.

Research: Van Straten M, Josling P. Preventing the common cold with a vitamin C supplement: a double-blind, placebo-controlled survey. Adv Ther. 2002 May-Jun;19(3):151-9. Carr AC, Maggini S. Vitamin C and Immune Function. Nutrients. 2017 Nov 3;9(11):1211. Moore A, Khanna D. The Role of Vitamin C in Human Immunity and Its Treatment Potential Against COVID-19: A Review Article. Cureus. 2023 Jan 13;15(1):e33740. Bhoot HR, Zamwar UM, Chakole S, Anjankar A. Dietary Sources, Bioavailability, and Functions of Ascorbic Acid (Vitamin C) and Its Role in the Common Cold, Tissue Healing, and Iron Metabolism. Cureus. 2023 Nov 23;15(11):e49308. Liugan M, Carr AC. Vitamin C and Neutrophil Function: Findings from Randomized Controlled Trials. Nutrients. 2019 Sep 4;11(9):2102.

Low or deficient vitamin C status can matter more than people realize because it can show up as everyday problems they already have, like bleeding gums when they brush or cuts and scrapes that seem slow to heal. Low vitamin C weakens collagen formation, making blood vessels in the gums and skin more fragile and increasing the risk of bleeding gums, easy bruising, and rough, dry skin. Clinical periodontal studies also show that ascorbic acid used alongside standard care can improve bleeding on probing, plaque and gingival indices, clinical attachment level, pocket depth, and gum aesthetics, supporting its role in healthier gums and more efficient healing of both oral tissues and skin.

Research: Murererehe J, Uwitonze AM, Nikuze P, Patel J and Razzaque MS (2022) Beneficial Effects of Vitamin C in Maintaining Optimal Oral Health. Front. Nutr. 8:805809. Ruzijevaite G, Acaite E, Jagelaviciene E. Therapeutic Impact of Ascorbic Acid on Oral and Periodontal Tissues: A Systematic Literature Review. Medicina (Kaunas). 2024 Dec 11;60(12):2041. Al-Niaimi F, Chiang NYZ. Topical Vitamin C and the Skin: Mechanisms of Action and Clinical Applications. J Clin Aesthet Dermatol. 2017 Jul;10(7):14-17. Epub 2017 Jul 1. Fitzpatrick, R.E. and Rostan, E.F. (2002), Double-Blind, Half-Face Study Comparing Topical Vitamin C and Vehicle for Rejuvenation of Photodamage. Dermatologic Surgery, 28: 231-236. Lassig AAD, Wilson AC, Jungbauer WN, Joseph AM, Lindgren B, Odland R. The Effects of Supplemental Vitamin C in Mandibular Fracture Patients: A Randomized Clinical Trial. Recent Progress in Nutrition 2023. Tajari F, Toloue Ghamari B, Jafari Kafiabadi M, Shariatzade H, Biglari F, Mahmoudi Nasab O, Salavati Mohammadi N, Najd Mazhar F. Effect of Vitamin C Injection on Flexor Tendon Healing in Zone II: A Randomized Controlled Trial. Cureus. 2026 Jan 22;18(1):e102075.

When vitamin C intake is too low for too long, it can start to show up in the muscles and joints as deep, aching pain and stiffness rather than just “simple” fatigue. Vitamin C is essential for building and maintaining healthy collagen in cartilage, tendons, and bone, so deficiency can cause bone tenderness, joint pain, and, in children, impaired growth and skeletal deformities similar to rickets or scurvy. In more advanced cases, people may notice difficulty walking, painful swelling around joints, and slower recovery from everyday strains or minor injuries because the connective tissues simply cannot repair and mineralize properly without adequate vitamin C.

Research: Mangano KM, Noel SE, Dawson-Hughes B, Tucker KL. Sufficient Plasma Vitamin C Is Related to Greater Bone Mineral Density among Postmenopausal Women from the Boston Puerto Rican Health Study. J Nutr. 2021 Dec 3;151(12):3764-3772. Kim YA, Kim KM, Lim S, Choi SH, Moon JH, Kim JH, Kim SW, Jang HC, Shin CS. Favorable effect of dietary vitamin C on bone mineral density in postmenopausal women (KNHANES IV, 2009): discrepancies regarding skeletal sites, age, and vitamin D status. Osteoporos Int. 2015 Sep;26(9):2329-37. Ratajczak AE, Szymczak-Tomczak A, Skrzypczak-Zielińska M, Rychter AM, Zawada A, Dobrowolska A, Krela-Kaźmierczak I. Vitamin C Deficiency and the Risk of Osteoporosis in Patients with an Inflammatory Bowel Disease. Nutrients. 2020 Jul 29;12(8):2263. Souza M, Moraes SAS, de Paula DR, Maciel AA, Batista EJO, Silva DGF, Bahia CP, Oliveira KRHM, Herculano AM. Local treatment with ascorbic acid accelerates recovery of post-sutured Achilles tendon in male Wistar rats. Braz J Med Biol Res. 2019;52(9):e8290.

In some patients, significant calcium deficiency can culminate in hypocalcemia that presents with neuromuscular irritability, including perioral numbness, carpopedal spasm, frank tetany, and potentially generalized seizures or life‑threatening arrhythmias. Clinical data in children with hypocalcemic seizures suggest that, once acute stabilization is achieved, carefully dosed oral calcium can be as effective as continued intravenous calcium in maintaining serum calcium over the first 24–48 hours, with similar calcium levels and seizure‑recurrence rates reported between groups. The key clinical implication is that prompt recognition and correction of hypocalcemia, followed by an appropriate transition to ongoing oral calcium (and vitamin D when indicated), can help prevent recurrent tetany, seizures, and cardiac instability while longer‑term etiologies of calcium deficiency are addressed.

Research: Han, P., Trinidad, B. J., & Shi, J. (2015). Hypocalcemia-Induced Seizure: Demystifying the Calcium Paradox. ASN Neuro, 7(2). Uday S, Högler W. Nutritional rickets & osteomalacia: A practical approach to management. Indian J Med Res. 2020 Oct;152(4):356-367. Ashwin Reddy S. Ventricular Arrhythmia Precipitated by Severe Hypocalcaemia Secondary to Primary Hypoparathyroidism. Case Rep Cardiol. 2019 Apr 7;2019:4851073. Dhir H, Kumar D, Shah D, Batra P, Ahmed RS, Gupta P. Efficacy of Oral vs. Intravenous Calcium Supplementation for Continuation Therapy in Hypocalcemic Seizures: A Randomized, Controlled Trial. Indian J Pediatr. 2023 May;90(5):433-437.

In both children and adults, chronically low calcium intake can undermine the mineralization of teeth and supporting bone, contributing to enamel hypoplasia, root resorption, and loss of alveolar bone that stabilizes the teeth. Epidemiologic studies have linked lower dietary calcium and dairy intake with higher rates of periodontitis, tooth mobility, and tooth loss, especially in older adults and postmenopausal women. The encouraging piece is that maintaining adequate calcium (alongside vitamin D and good oral hygiene) appears to support healthier periodontal bone and may reduce the risk of dental defects and tooth loss over time.

Research: Nishida M, Grossi SG, Dunford RG, Ho AW, Trevisan M, Genco RJ. Calcium and the risk for periodontal disease. J Periodontol. 2000 Jul;71(7):1057-66. Nascimento GG, Leite FRM, Gonzalez-Chica DA, Peres KG, Peres MA. Dietary vitamin D and calcium and periodontitis: A population-based study. Front Nutr. 2022 Dec 22;9:1016763. Miley DD, Garcia MN, Hildebolt CF, Shannon WD, Couture RA, Anderson Spearie CL, Dixon DA, Langenwalter EM, Mueller C, Civitelli R. Cross-sectional study of vitamin D and calcium supplementation effects on chronic periodontitis. J Periodontol. 2009 Sep;80(9):1433-9. Nishida, M., Grossi, S.G., Dunford, R.G., Ho, A.W., Trevisan, M. and Genco, R.J. (2000), Calcium and the Risk For Periodontal Disease. Journal of Periodontology, 71: 1057-1066.

Low calcium levels overstimulate nerves and muscles, leading to muscle cramps, spasms, and twitching. More significant deficiency can cause tetany, a state of sustained, painful muscle contractions often with carpopedal spasms and tingling around the mouth, hands, and feet. In severe cases, untreated hypocalcemia may progress to breathing difficulties from laryngospasm, seizures, abnormal heart rhythms, and other potentially life‑threatening complications.

Research: Agrawal A, Suryakumar G, Rathor R. Role of defective Ca2+ signaling in skeletal muscle weakness: Pharmacological implications. J Cell Commun Signal. 2018 Dec;12(4):645-659. Uday S, Högler W. Nutritional Rickets and Osteomalacia in the Twenty-first Century: Revised Concepts, Public Health, and Prevention Strategies. Curr Osteoporos Rep. 2017 Aug;15(4):293-302. Basma A. Dahash, et al. Rickets. StatPearls August 7, 2023. Seema M. Policepatil, et al. Hypocalcemic Myopathy Secondary to Hypoparathyroidism.Aloke A, Singh K. An Unusual Presentation of Multifactorial Hypocalcemia as Myopathy: A Case Report. Cureus. 2025 Jul 7;17(7):e87434.

Even a modest shortfall in vitamin C can quietly weaken collagen, which makes blood vessels and skin more fragile and sets the stage for easy bruising and rough, bumpy skin. Clinical descriptions of scurvy consistently report extensive bruising and the classic “follicular hyperkeratosis” pattern—dry, rough skin with hard plugs around hair follicles and tiny perifollicular hemorrhages—that clear rapidly once vitamin C is replaced. For someone who bruises at the slightest bump or notices persistent, goose‑bump–like roughness on the thighs or legs, it can be eye‑opening to learn that a simple vitamin C gap in their diet may be contributing—and that correcting it often leads to visible skin changes within weeks.

Research: Pasquali M, Still MJ, Vales T, Rosen RI, Evinger JD, Dembure PP, Longo N, Elsas LJ. Abnormal formation of collagen cross-links in skin fibroblasts cultured from patients with Ehlers-Danlos syndrome type VI. Proc Assoc Am Physicians. 1997 Jan;109(1):33-41. PMID: 9010914. Fitzpatrick RE, Rostan EF. Double-blind, half-face study comparing topical vitamin C and vehicle for rejuvenation of photodamage. Dermatol Surg. 2002 Mar;28(3):231-6. Fraser IM, Dean M. Extensive bruising secondary to vitamin C deficiency. BMJ Case Rep. Humbert P, Fanian F, Lihoreau T, Jeudy A, Pierard GE. Bateman purpura (dermatoporosis): a localized scurvy treated by topical vitamin C - double-blind randomized placebo-controlled clinical trial. J Eur Acad Dermatol Venereol. 2018 Feb;32(2):323-328. 2009;2009:bcr08.2008.0750.

Vitamin C shortfalls can matter more than people realize because they can quietly undermine iron status and contribute to microcytic, iron‑deficiency–type anemia. Vitamin C is one of the few nutrients that significantly boosts non‑heme iron absorption, helping convert dietary iron into a form the gut can take up more easily and counteracting common inhibitors found in grains, legumes, tea, and coffee. In people whose diets are low in both iron and vitamin C, this combination can show up as persistent fatigue, pallor, and microcytic red blood cells on lab work, with studies in iron‑depleted women showing that added ascorbic acid improved iron absorption and anemia markers over just a few weeks.

Research: Alhatem A, Cai D. Behind the Skin: A Rare Case of Scurvy-Associated Megaloblastic Anemia. Clin Med Insights Case Rep. 2019 May 10;12:1179547619849036. Ricaurte FR, Kewan T, Daw H. Scurvy: A Rare Cause of Anemia. Cureus. 2019 Sep 18;11(9):e5694.Golding PH. Experimental folate deficiency in human subjects: what is the influence of vitamin C status on time taken to develop megaloblastic anaemia? BMC Hematol. 2018 Jun 19;18:13. Kim YL. Vitamin C and functional iron deficiency anemia in hemodialysis. Kidney Res Clin Pract. 2012 Mar;31(1):1-3.

Deficiency of calcium over time can sometimes show up in the skin, hair, and nails as dryness, pruritus, brittle or ridged nails, and diffuse hair shedding, especially when hypocalcemia is more chronic. Clinicians often see these dermatologic changes accompanying other signs of calcium and vitamin D deficiency, such as muscle cramps or bone pain, and they may improve as serum calcium and overall mineral status are normalized. The practical point is that, when patients present with unexplained dry skin, fragile nails, and hair loss, particularly in the setting of poor diet, malabsorption, or endocrine disease, assessing and correcting calcium (and related nutrient) deficiencies can be an important part of restoring healthier skin and adnexal structures.

Research: Lee SE, Lee SH. Skin Barrier and Calcium. Ann Dermatol. 2018 Jun;30(3):265-275. Elias P, Ahn S, Brown B, Crumrine D, Feingold KR. Origin of the epidermal calcium gradient: regulation by barrier status and role of active vs passive mechanisms. J Invest Dermatol. 2002 Dec;119(6):1269-74. Baumann J, Wandrey F, Sacher R, Zülli F. A novel Ca2+ double cone vector system to treat compromised skin. Int J Cosmet Sci. 2024 Apr;46(2):228-238. Bouhmadi, A.E., Fatoiki, F.E., Rachadi, H. et al. Hypocalcemia-related pustulosis: a case report. J Med Case Reports 19, 497 (2025).