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- VitaWix — Science About Vitamins, Supplements & Healthy Longevity
VitaWix — Science About Vitamins, Supplements & Healthy Longevity
Welcome to VitaWix
Science About Vitamins, Supplements & Healthy Longevity
VitaWix is an evidence-based information portal. We help you navigate the world of vitamins, minerals and supplements based on clinical research, not marketing promises.
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200+
Scientific articles
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Brands in catalog
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Evidence-based
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Site sections
Our Mission
Making evidence-based health science accessible to everyone
In a world where every other blogger advertises "miracle" supplements and marketing companies spend millions promoting questionable products, we decided to create an island of objective information.
VitaWix is a project that prioritizes evidence-based medicine and scientific research. We don't sell supplements. We don't advertise dubious brands. We simply collect, analyze and clearly explain scientific data about vitamins, minerals and their impact on health.
- We rely only on data from peer-reviewed journals (PubMed, Cochrane, The Lancet)
- We critically evaluate research quality and aren't afraid to report ambiguous results
- We explain complex biochemical processes in simple, understandable language
- We regularly update information as new research emerges
Evidence-Based Medicine
Every article on VitaWix goes through source verification. We only cite data from peer-reviewed scientific journals.
Sections
What You'll Find on VitaWix
Nine thematic sections, each dedicated to a specific aspect of health and nutrition science
Vitamins & Minerals
Complete guides to vitamins A–K and minerals: magnesium, zinc, selenium, calcium, iron and more. Dosages, food sources, deficiency symptoms.
Explore →Dietary Supplements
Reviews of popular supplements: Omega-3, probiotics, collagen, CoQ10, curcumin, adaptogens — what works and what doesn't.
Explore →Vitamin Brands
Company histories, quality standards (GMP, USP), product line reviews. Solgar, Now Foods, Doppelherz, Life Extension, Thorne Research and more.
Explore →Longevity & Anti-Aging
Scientific approaches to lifespan extension. Senolytics, telomeres, NAD+, autophagy, geroprotectors, intermittent fasting.
Explore →Nutrition
Healthy eating principles, macro- and micronutrients, dietary approaches (Mediterranean, MIND, DASH), functional foods.
Explore →Research & Science
Analysis of key clinical trials, meta-analyses and systematic reviews. Translations from PubMed, Cochrane, Nature.
Explore →Biochemistry
How vitamins work at the molecular level: coenzymes, metabolic pathways, mitochondria, oxidative stress, methylation.
Explore →Deficiency Symptoms
How to recognize vitamin deficiencies by symptoms, which tests to take, how to interpret results and correct deficiencies.
Explore →Health by Body Systems
Nutrient recommendations for immunity, heart and vessels, brain, joints, skin, vision. Disease prevention.
Explore →
Why Trust Us
Evidence-Based Approach Is Our Core Principle
We don't give advice based on personal experience or "folk medicine." Every claim on the site is backed by references to scientific sources.
Only Peer-Reviewed
We use data from peer-reviewed journals that have passed scientific scrutiny.
Critical Analysis
We evaluate study quality, sample size and methodology.
Regular Updates
Science doesn't stand still — we update articles as new data emerges.
No Conflict of Interest
We don't sell supplements and don't accept advertising payments from supplement manufacturers.
Vitamins & Minerals
Complete guides to vitamins A–K and minerals
Copper participates in dozens of enzymes, from blood formation to collagen synthesis. We look at supplement forms, why the zinc balance matters and where to get copper from food.
Inositol (vitamin B8): benefits for nerves, hormones and metabolism. Let's look at myo-inositol, D-chiro-inositol and food sources.
Lithium in microdoses (lithium orotate): neuroprotection, mood support and longevity. Let's look at the mechanisms, dosages and sources.
Potassium is the main intracellular electrolyte on which blood pressure, heart rhythm and muscle function depend. We look at supplement forms, norms and food sources.
Vanadium and vanadyl sulfate: insulin mimetic, effect on blood sugar and insulin sensitivity. Let's look at the norms, food sources and dosages.
Vitamin E is not one substance but a family of eight fat-soluble compounds: four tocopherols and four tocotrienols. Why the full spectrum matters, and not just popular alpha-tocopherol, and where to get vitamin E from food.
Dietary Supplements
Reviews of popular supplements — what works and what doesn't
L-carnitine is a substance that transports fatty acids into mitochondria to produce energy. We look at the forms (L-carnitine, ALCAR, LCLT) and benefits for the body, brain and heart.
Garlic and allicin: benefits, forms (fresh, extract, aged) and dosage. Let's look at allicin and its effect on heart and immunity.
Saw Palmetto (Serenoa repens): DHT blocking, prostate health and against hair loss. Let's look at the mechanism, sources and dosages.
DIM and Indole-3-Carbinol: estrogen metabolism and hormonal balance. Let's look at the food sources and dosages.
Collagen supplements come in different forms: hydrolyzed collagen (peptides), gelatin and individual amino acids. Let's figure out how they differ and which one is right for you.
Cordyceps: Sinensis vs Militaris. Differences of species, role for energy, lungs and endurance, active compounds and how to choose.
Vitamin Brands
Company histories and quality standards
Twinlab is an American brand of sports and vitamin supplements founded in 1968 by the Blechman brothers. Known for Daily One, Amino Fuel, Mega B lines. Cult brand of the sports nutrition boom era, survived bankruptcy and revival.
Pharmaton is a Swiss brand of supplements for energy and vitality, known for its Energy Vitality formula with ginseng G115 and B vitamins. Owned by German Boehringer Ingelheim. Popular across Europe.
Swisse — the Australian brand Swisse Wellness, founded in the 1960s by Kevin Ring in Melbourne. Vitamins, collagen, omega-3. The name is inspired by Swiss quality standards.
Vitabiotics — the largest vitamin brand in the UK, founded in 1971 by Kartik Jhaveri in London. Wellman, Wellwoman, Pregnacare, Osteocare. Supplements for life stages.
Optimum Nutrition — a leader in sports nutrition, founded in 1986 by Tony Caponigro in Aurora, Illinois. Known for Gold Standard 100% Whey protein. Part of Irish Glanbia.
Holland & Barrett — the largest retail chain of vitamins and health food in the UK and Europe. Founded in 1870 in England as a grocery shop, with the idea of making health food and supplements accessible.
Longevity & Anti-Aging
Scientific approaches to lifespan extension
Glycation is a process in which sugars "glue" proteins together, forming AGEs. These damaged structures accelerate tissue aging. Let's look at how to reduce them with diet and nutraceuticals.
Autophagy and fasting: how the body "cleans itself". Let's look at the mechanism, benefits and how to trigger it. Brief and clear.
mTOR and AMPK are two "conductors" of cellular metabolism. One drives growth and synthesis, the other energy saving and cleanup. Let's explore how diet, fasting and supplements manage this balance.
Muscles and metabolism in 60+: how to keep strength against sarcopenia. Protein, HMB and creatine, exercise and food sources.
Hormesis: how moderate stress (sauna, cold, physical exercise) extends life. Mechanisms, data and practical approaches.
Spermidine: activating autophagy and extending healthy life. Mechanism, sources, research data and limits.
Nutrition
Healthy eating principles and dietary approaches
Spices: turmeric, ginger, cinnamon and pepper. Let's look at the benefits of active compounds, how to combine them and sources.
Three of the most studied diets — Mediterranean, DASH and MIND. We look at how they are similar and different, and which to choose for the heart, vessels and brain.
Plant-based fats: refined or unrefined oils. Let's look at the differences and what to look for.
The carnivore diet is eating exclusively animal products. We break down what science says about meat-eating: potential benefits, hidden risks and who this diet suits.
Animal vs plant fats: composition, saturated and unsaturated, what's better for the heart. Let's look at it with tables and sources.
The Mediterranean diet: principles, benefits for the heart, brain and longevity. Foods, norms and why it is considered the gold standard.
Research & Science
Meta-analyses and clinical research reviews
Stress and cortisol affect vessels and the heart. Let's look at the mechanisms and the role of coenzyme Q10 in protecting the cardiovascular system.
Collagen peptides are a popular supplement for the skin. We look at what double-blind placebo studies show about their effect on wrinkles, elasticity and hydration.
Senolytics — a class of agents that selectively destroy senescent ("zombie") cells. We review dasatinib+quercetin and fisetin research and what is already known in humans.
Creatine and D-aspartic acid: comparison for strength, endurance and hormones. Let's look at mechanisms, what to choose and dosages.
Methylation and genes: how the body switches DNA on and off, the role of B12, folate and MTHFR. Let's look at food sources and practice.
Glucosamine & Chondroitin: why research results are conflicting. Role for joints, data, dosages and limits.
Biochemistry
How vitamins work at the molecular level
Mitochondria are the "power stations" of cells. Coenzyme Q10 supports their work, while PQQ is studied as a stimulator of new mitochondria formation. Let's look at the mechanisms.
Sirtuins and NAD+ (SIRT1, SIRT3): role in longevity and cellular energy. Let's look at mechanisms, activation and practice.
Nitric oxide (NO) production: L-arginine, L-citrulline and nitrate pathways. Let's look at how NO affects blood vessels, blood pressure, erection and endurance.
Omega-3 fatty acids affect the body at the molecular level: EPA produces anti-inflammatory eicosanoids, and EPA and DHA produce resolvins and protectins that help resolve chronic inflammation.
Thyroid gland: synthesis of T4 and T3, the role of iodine and selenium, signs of disorders. Let's look at food sources and dosages.
Iron metabolism biochemistry: hepcidin, ferritin, transferrin. Heme and non-heme iron, regulation, deficiency and excess.
Deficiency Symptoms
How to recognize and correct vitamin deficiencies
White spots on nails (leukonychia): zinc, calcium and other deficiencies. Let's look at the causes, what to do and food sources.
If colds happen too often, it is worth checking immunity. Key micronutrients — vitamin D, zinc and vitamin A. We look at how deficiencies are linked to frequent illness.
Bleeding gums is a common symptom. Most often it is gingivitis, but sometimes the cause is vitamin C, bioflavonoid or vitamin K deficiency. From classic scurvy to subclinical conditions.
Bloating and heaviness after eating: stomach acid, enzyme and bile flow deficiencies. Let's look at causes, symptoms and food sources.
Anxiety and panic attacks: the role of magnesium, inositol and vitamin B6. Mechanisms, sources and how to replenish.
Elevated anxiety and panic attacks: the role of magnesium, inositol and vitamin B6. Let's look at the mechanisms, dosages and food sources.
Health by Body Systems
Nutrients for immunity, heart, brain and other systems
Female reproductive health depends on hormonal balance. Inositol, DIM and vitex are often used for cycle disorders, PMS and PCOS. We look at mechanisms and use.
Bones and teeth: calcium, phosphorus, vitamin D3 and K2 for bone tissue health. Let's look at the mechanisms and food sources.
The liver is the main organ of detoxification. We look at three key support agents: NAC (glutathione precursor), silymarin from milk thistle and TUDCA for the bile ducts.
The endocrine system: how to support hormonal balance. Let's look at the thyroid gland, insulin, cortisol and food sources.
Mental health: serotonin, dopamine and GABA — the chemistry of mood. Let's look at effects on stress, motivation and food sources.
Circulatory system and anemia: the role of iron, vitamin B12 and folates. Let's look at the types of anemia, symptoms, norms and food sources.
Ready to dive into the world of evidence-based nutrition?
Start with our comprehensive guide to vitamins — the most complete resource based on scientific research.
Explore Vitamins