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Supplement Cost Comparison

Compare the cost, forms, dosages, and quality brands for 18 popular supplements.

⚕️ Disclaimer: This is a cost comparison tool. Supplement choices should be made with your healthcare provider. This is not medical advice.
Good Value Moderate Premium

Who It's For

People in northern latitudes, indoor workers, older adults, those with darker skin tones, and anyone with low blood levels of vitamin D.

Best Form to Buy

Vitamin D3 (cholecalciferol) in softgel or liquid drops with fat carrier (olive or MCT oil). D2 is less effective.

Typical Dosage

600–2,000 IU daily for maintenance; 2,000–5,000 IU daily for deficiency correction. 5,000 IU = ~$0.03–0.10/day.

Quality Brands

NOW Foods, Thorne Research, Nature Made, Nordic Naturals, Pure Encapsulations, Life Extension

Where to Buy

Amazon, iHerb, Walmart, Costco, Target, Walgreens, CVS

Pros

  • Extremely low cost per serving
  • Well-researched health benefits
  • Single weekly megadose option available
  • Fat-soluble = one dose lasts in system for days

Cons

  • Fat-soluble = possible toxicity at very high doses (10,000+ IU/day long-term)
  • Most people need blood test to know optimal dose
  • Quality varies between brands for absorption

Who It's For

Athletes, gym-goers, older adults concerned with muscle loss, and anyone doing high-intensity exercise.

Best Form to Buy

Creatine monohydrate powder (micronized for better mixing). Avoid "HCl" or "ethyl ester" forms — no evidence they are better.

Typical Dosage

3–5 g daily. No loading phase required but optional. ~$0.05–0.15/day.

Quality Brands

Optimum Nutrition (Micronized), Thorne Research, NOW Foods (Sports), Bulk Supplements, Nutricost, Klean Athlete

Where to Buy

Amazon, Walmart, Target, GNC, Vitamin Shoppe, Costco

Pros

  • One of the most researched supplements in existence (1,000+ studies)
  • Very low cost per serving
  • Simple dosing: 3–5g daily, no cycling needed
  • Tasteless powder mixes easily into anything

Cons

  • Initial water weight gain (2–5 lbs in loading phase)
  • Loading phase (20g/day for 5–7 days) can cause stomach discomfort
  • Not effective for endurance sports or low-intensity cardio
  • Some brands sell poor-mixing or gritty formulations

Who It's For

People who eat little fatty fish (salmon, mackerel, sardines), those concerned with heart/brain health, and anyone looking to balance omega-3:omega-6 ratio.

Best Form to Buy

Triglyceride or re-esterified triglyceride form liquid or softgels with at least 500 mg combined EPA+DHA per serving. Look for IFOS or USP certification for purity.

Typical Dosage

1,000–2,000 mg combined EPA+DHA daily. ~$0.20–0.70/day for quality products.

Quality Brands

Nordic Naturals, Carlson Labs, NOW Foods (Ultra Omega-3), Viva Naturals, Barlean's, Life Extension

Where to Buy

Amazon, iHerb, Costco (Kirkland), Walmart, Vitacost, Thrive Market

Pros

  • Extensive scientific backing for cardiovascular health
  • Anti-inflammatory effects
  • Supports cognitive function and mood
  • Essential fats the body cannot produce on its own

Cons

  • Fishy aftertaste or burps with lower-quality brands
  • Can be expensive for high-potency, third-party-tested oils
  • Rancidity risk if not stored properly or if using cheap brands
  • Some people need high doses (2+ g EPA+DHA) for therapeutic effects

Who It's For

People with stress, poor sleep, muscle cramps, anxiety, or anyone who tolerates magnesium oxide/citrate poorly.

Best Form to Buy

Magnesium bisglycinate chelate (fully reacted). Look for "magnesium bisglycinate" or "di-magnesium glycinate." Avoid oxide blends.

Typical Dosage

200–400 mg elemental magnesium daily. Typically 2–4 capsules at night. ~$0.25–0.50/day.

Quality Brands

Pure Encapsulations, Thorne Research, NOW Foods, Natural Vitality CALM (glycinate caps), Klaire Labs, Doctor's Best

Where to Buy

Amazon, iHerb, Whole Foods, Walmart, Vitamin Shoppe, GNC

Pros

  • Highly bioavailable form of magnesium
  • Gentle on digestion (no laxative effect like citrate)
  • Supports sleep quality and relaxation
  • Can help with muscle cramps and tension headaches

Cons

  • More expensive than magnesium oxide or citrate
  • Bulky dose (more pills needed for same elemental Mg)
  • Some brands use poor-quality glycinate chelate
  • Taste can be unpleasant in powder form

Who It's For

Athletes, gym-goers, people trying to increase protein intake without more meat/eggs, busy professionals, and older adults preventing muscle loss.

Best Form to Buy

Whey protein isolate for fastest absorption and minimal lactose. Whey concentrate is cheaper but has more lactose. Cold-processed for better amino acid profile.

Typical Dosage

25–50 g protein (1–2 scoops) daily as needed to meet protein targets. ~$0.50–1.50/serving.

Quality Brands

Optimum Nutrition (Gold Standard 100% Whey), Dymatize (ISO100), Thorne Research, NOW Foods (Sports Whey), Transparent Labs, Ascent

Where to Buy

Amazon, Walmart, Costco, GNC, Vitamin Shoppe, Target, iHerb

Pros

  • Complete protein with all essential amino acids
  • Fast absorption — ideal post-workout for muscle recovery
  • Very cost-effective per gram of protein (~$0.06–0.10/g) compared to meat
  • Versatile — shakes, baking, pancakes, oatmeal

Cons

  • Dairy-based — not suitable for vegans or those with dairy allergies
  • Lactose intolerance can cause bloating/gas (whey isolate solves this)
  • Some brands have fillers, artificial sweeteners, or heavy metal contamination
  • Large tubs take up cabinet space

Who It's For

Vegans and vegetarians (B12 is only in animal foods), older adults with reduced absorption, people taking metformin or acid blockers, and those with pernicious anemia.

Best Form to Buy

Methylcobalamin or cyanocobalamin. Sublingual tablets or sprays for best absorption. Methyl form is biologically active.

Typical Dosage

1,000–2,000 mcg sublingual daily for deficiency; 25–100 mcg daily for maintenance. ~$0.03–0.20/day.

Quality Brands

NOW Foods, Nature Made, Jarrow Formulas, Life Extension, Solgar, Garden of Life

Where to Buy

Amazon, iHerb, Walmart, Costco, Walgreens, CVS

Pros

  • Very inexpensive
  • Water-soluble = safe, no toxicity risk
  • Sublingual and injectable forms have high absorption
  • Important for vegans who get none from diet

Cons

  • Oral absorption is low (1–2%) without intrinsic factor
  • Most people do not need supplementation unless deficient or vegan
  • High doses in urine turn it bright yellow (harmless but surprising)
  • Methylcobalamin can be pricier than cyanocobalamin

Who It's For

People with frequent colds, vegetarians (zinc from plants is less bioavailable), older adults, and anyone with poor immune function.

Best Form to Buy

Zinc picolinate or zinc bisglycinate for best absorption. Zinc gluconate is also effective and common in lozenges.

Typical Dosage

15–30 mg elemental zinc daily. ~$0.05–0.20/day.

Quality Brands

NOW Foods, Thorne Research, Solgar, Nature Made, Jarrow Formulas, Life Extension

Where to Buy

Amazon, iHerb, Walmart, Costco, Walgreens, CVS, Whole Foods

Pros

  • Well-established immune support role
  • Inexpensive
  • Can shorten cold duration if taken early
  • Important for hair health and skin clarity

Cons

  • Nausea with high doses on empty stomach
  • Chronic high doses (40+ mg/day) can cause copper deficiency
  • Zinc oxide form is poorly absorbed
  • Unpleasant metallic taste in some lozenges/liquids

Who It's For

People with limited fruit/vegetable intake, smokers (higher oxidative stress), anyone wanting immune support, and those looking to boost collagen synthesis.

Best Form to Buy

Sodium ascorbate or ascorbic acid powder for cost efficiency. Liposomal vitamin C for maximum absorption (costlier).

Typical Dosage

500–1,000 mg daily. Up to 2,000 mg during illness. ~$0.03–0.15/day for basic form.

Quality Brands

NOW Foods, Thorne Research, Pure Encapsulations, Life Extension, Nature's Bounty, Solgar

Where to Buy

Amazon, iHerb, Walmart, Costco, Target, Walgreens, CVS

Pros

  • Very inexpensive in basic form
  • Extensive safety record — water soluble, minimal toxicity
  • Multiple forms available (tablets, powders, gummies, liposomal)
  • Can improve iron absorption from plant foods

Cons

  • High doses (2,000+ mg) can cause digestive upset and diarrhea
  • Basic ascorbic acid can be harsh on teeth enamel
  • Liposomal and Ester-C forms cost significantly more
  • Kidney stone risk at very high doses for susceptible individuals

Who It's For

People over 40, anyone taking statin medications, those with heart health concerns, and athletes wanting mitochondrial support.

Best Form to Buy

Ubiquinol for those over 40 or on statins. Ubiquinone for younger people (adequate conversion ability). Look for Kaneka Q10 brand source.

Typical Dosage

100–300 mg daily. ~$0.50–1.50/day for quality ubiquinol.

Quality Brands

Qunol, NOW Foods (Ubiquinol), Thorne Research, Life Extension, Jarrow Formulas, Doctor's Best

Where to Buy

Amazon, iHerb, Costco, Walmart, Vitamin Shoppe, Whole Foods

Pros

  • Critical for cellular energy (ATP) production
  • Helps offset statin-induced CoQ10 depletion
  • Strong heart health research
  • Ubiquinol form is directly usable by the body

Cons

  • Expensive compared to most supplements
  • Large softgels can be hard to swallow
  • Ubiquinone form requires conversion (less efficient in older adults)
  • Fat-soluble — best absorbed with food containing fat

Who It's For

People dealing with chronic stress, burnout, anxiety, sleep issues, and anyone wanting adrenal/cortisol support.

Best Form to Buy

KSM-66 (full-spectrum root extract, 5% withanolides) or Sensoril standardized extract. Root powder is less potent but cheaper.

Typical Dosage

300–600 mg of KSM-66 extract daily. 1,000–3,000 mg of plain root powder. ~$0.15–0.40/day.

Quality Brands

NOW Foods, Gaia Herbs, Thorne Research, Organic India, Garden of Life, Himalaya

Where to Buy

Amazon, iHerb, Whole Foods, Vitamin Shoppe, Walmart, Thrive Market

Pros

  • Strong research for stress and cortisol reduction
  • Can improve sleep quality and energy levels
  • May boost testosterone and muscle strength in men
  • Well-tolerated by most people

Cons

  • Can cause stomach upset in some people
  • Not recommended during pregnancy or with thyroid medication
  • Taste can be bitter (powder form)
  • Standardization varies across brands — quality matters

Who It's For

People with joint pain or arthritis, athletes recovering from workouts, anyone with chronic inflammation, and those wanting antioxidant support.

Best Form to Buy

Curcumin with BioPerine (piperine) for 2,000% increased absorption. Liposomal curcumin or Theracurmin (highly bioavailable). Avoid plain turmeric powder.

Typical Dosage

500–1,000 mg curcumin (with piperine) daily. ~$0.20–0.60/day.

Quality Brands

NOW Foods (CurcuBrain or curcumin with Bioperine), Thorne Research (Meriva), Life Extension (Super Bio-Curcumin), Gaia Herbs, Doctor's Best

Where to Buy

Amazon, iHerb, Whole Foods, Walmart, Vitamin Shoppe, Costco

Pros

  • Well-researched anti-inflammatory effects
  • May reduce joint pain and stiffness comparable to some NSAIDs
  • Antioxidant properties support overall health
  • Available as both spice and concentrated supplement

Cons

  • Poor natural absorption — must be taken with piperine (black pepper) or as liposomal form
  • Stains teeth, tongue, and clothing yellow
  • Can interfere with blood-thinning medications
  • Cheap, non-standardized powders may have inconsistent potency

Who It's For

People taking vitamin D3 (they work together), those concerned with bone density, anyone wanting cardiovascular support, and postmenopausal women.

Best Form to Buy

Vitamin K2 as MK-7 (menaquinone-7) from natto. 45–100 mcg daily. MK-4 can work but needs 3x daily dosing.

Typical Dosage

90–180 mcg MK-7 daily (often in D3+K2 combo). ~$0.10–0.30/day.

Quality Brands

NOW Foods, Thorne Research, Life Extension, Jarrow Formulas, Nordic Naturals, Pure Encapsulations

Where to Buy

Amazon, iHerb, Walmart, Whole Foods, Vitamin Shoppe, Costco

Pros

  • Important for calcium regulation in the body
  • Often sold combined with vitamin D3 for convenience
  • Little-known but significant for bone and heart health
  • MK-7 form lasts longer in the bloodstream (one daily dose)

Cons

  • Less well-known than other vitamins — often overlooked
  • K2 is more expensive than K1 (found in leafy greens)
  • May interact with blood thinners (warfarin/Coumadin) — do not take without doctor approval
  • MK-4 form requires multiple daily doses (shorter half-life)

Who It's For

People on antibiotics, those with digestive issues (bloating, IBS), travelers wanting digestive support, and anyone interested in gut health.

Best Form to Buy

Multi-strain formula with at least 10–20 billion CFU. Look for Lactobacillus and Bifidobacterium strains. Shelf-stable options exist but have fewer strains.

Typical Dosage

10–50 billion CFU daily. 1 capsule per day. ~$0.50–1.50/day.

Quality Brands

Align, Garden of Life (Dr. Formulated), Culturelle, NOW Foods, Jarrow Formulas, Seed, Bio-K+

Where to Buy

Amazon, iHerb, Whole Foods, Costco, Vitamin Shoppe, Walgreens

Pros

  • Can improve digestive regularity and comfort
  • May reduce antibiotic-associated diarrhea
  • Diverse strains offer broad health benefits
  • Fermented food alternatives available (kimchi, yogurt, kefir)

Cons

  • Live organisms = short shelf life; need refrigeration for many strains
  • Very expensive per month compared to other supplements
  • Strain-specific benefits mean not all probiotics do the same thing
  • Can cause initial bloating/gas during adjustment period

Who It's For

People with jet lag, shift workers, those with delayed sleep phase, and anyone needing help falling asleep occasionally.

Best Form to Buy

Immediate-release tablets or gummies at 0.5–3 mg. Time-release only if you wake mid-night. Lower doses (0.3–1 mg) are often more effective than high doses.

Typical Dosage

0.5–5 mg taken 30–60 minutes before bed. 0.3–1 mg for general use. ~$0.03–0.10/day.

Quality Brands

NOW Foods, Nature Made, Life Extension, Thorne Research, Natrol, Solgar

Where to Buy

Amazon, Walmart, Costco, Target, Walgreens, CVS, iHerb

Pros

  • Very inexpensive
  • Fast-acting for falling asleep
  • Multiple dosing options (tablets, gummies, liquid, time-release)
  • Well-studied for jet lag and shift work sleep disorder

Cons

  • Doses above 0.5–1 mg are often unnecessary (high doses can cause next-day grogginess)
  • Can cause vivid dreams or nightmares
  • Long-term safety data is limited; not for chronic insomnia
  • May interact with blood thinners, diabetes meds, and immunosuppressants

Who It's For

Athletes, keto/carnivore dieters, people in hot climates, anyone with dehydration from illness, and heavy sweaters.

Best Form to Buy

Powder with sodium, potassium, magnesium, and optional calcium. No added sugar. LMNT-style formulas (1,000 mg sodium, 200 mg potassium, 60 mg magnesium per serving).

Typical Dosage

1–2 servings daily depending on activity level and diet. ~$0.30–0.80/serving.

Quality Brands

LMNT, Nuun, Redmond Re-Lyte, Ultima Replenisher, Key Nutrients, Dr. Berg (for keto)

Where to Buy

Amazon, iHerb, Whole Foods, Walmart, Target, Thrive Market

Pros

  • Essential for hydration, muscle function, and nerve signaling
  • Sugar-free options available for keto and low-carb diets
  • Much cheaper than sports drinks per serving
  • Especially important on keto (electrolyte loss is rapid)

Cons

  • Taste varies widely between brands
  • Many contain added sugar, artificial colors, or stevia (dealbreaker for some)
  • Easy to overdo sodium for people with hypertension
  • Powders can clump in humid conditions

Who It's For

Women with heavy menstrual periods, vegetarians/vegans, frequent blood donors, endurance athletes, people with iron-deficiency anemia.

Best Form to Buy

Ferrous bisglycinate (gentlest on stomach, best absorbed). Ferrous sulfate is cheapest but causes more GI side effects. Always take with vitamin C.

Typical Dosage

18–65 mg elemental iron daily (depending on deficiency severity). ~$0.05–0.20/day.

Quality Brands

NOW Foods, Thorne Research, Solgar, Nature Made, MegaFood, Life Extension

Where to Buy

Amazon, iHerb, Walmart, Costco, Walgreens, CVS, Target

Pros

  • Very inexpensive
  • Life-changing for people with iron-deficiency anemia (fatigue relief)
  • Multiple forms available for different tolerances
  • Works synergistically with vitamin C for better absorption

Cons

  • Iron overload is dangerous (hemochromatosis risk) — must test before supplementing
  • Constipation and stomach upset are common side effects
  • Not for men or postmenopausal women without confirmed deficiency
  • Can turn stools black (harmless but concerning if unexpected)

Who It's For

People concerned with skin aging, joint discomfort, bone health, and anyone wanting to support hair/nails/connective tissue.

Best Form to Buy

Hydrolyzed collagen peptides (Type I and III for skin/hair/nails; Type II for joints). Hydrolyzed = most absorbable. Grass-fed bovine or marine source.

Typical Dosage

10–20 g (1–2 scoops) daily. ~$0.30–0.80/day.

Quality Brands

Vital Proteins, Great Lakes Gelatin, NOW Foods, Bulletproof, Garden of Life, Sports Research

Where to Buy

Amazon, iHerb, Costco, Whole Foods, Thrive Market, Walmart

Pros

  • Can improve skin hydration and elasticity with consistent use
  • Supports joint health and may reduce exercise-related joint pain
  • Dissolves easily in hot or cold liquids (tasteless)
  • Good protein source (~9g per serving)

Cons

  • Incomplete protein (low in methionine and tryptophan)
  • Results take 8–12 weeks of consistent daily use to notice
  • Can be pricey for grass-fed/collagen peptide blends
  • Not vegan — collagen is animal-derived (bovine, marine, or chicken)

Who It's For

People exploring non-prescription options for stress, occasional sleep issues, or general relaxation. CBD is not FDA-approved for wellness use — individual results vary.

Best Form to Buy

Full-spectrum CBD oil tincture (contains trace THC, more effective for many) or broad-spectrum (THC-free). Third-party lab tested with COA available.

Typical Dosage

25–50 mg CBD daily, taken sublingually. ~$0.50–2.00/day for quality oil.

Quality Brands

Charlotte's Web, Lazarus Naturals, CBDistillery, Joy Organics, NuLeaf Naturals, Medterra

Where to Buy

Amazon (limited), specialty CBD retailers, brand websites, some health food stores

Pros

  • Available without prescription in most states
  • Multiple forms (oil, gummies, capsules, topicals)
  • Some report reduced stress and improved sleep (anecdotal)
  • Full-spectrum options provide additional cannabinoid benefits

Cons

  • Expensive — significantly more per month than most supplements
  • Not FDA-regulated for purity or potency; third-party testing varies by brand
  • Dosage is not standardized — finding effective dose requires experimentation
  • Can interact with medications (especially blood thinners and antidepressants)
  • May cause drowsiness, dry mouth, or appetite changes

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