i-Supplement

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Clinical transparency, clearer choices.

Compare the cheapest, best supplements — and calculate what you need.

One place for what actually works, at the best price we can find — real elemental doses, published third-party testing, no marketing spin. Then run your own food through the nutrition calculator to see exactly where the gaps are.

Nutrition calculatorBuild a meal from USDA reference foods — calories, macros and 20+ micronutrients against official targets, with modeled iron, B12 and zinc absorption.
  • Third-party tested
  • Elemental dose shown
  • Live retailer prices
  • One basket, any retailer

How to read this: Elemental dose is a clinical fact. Value uses verified package data: cost per serving for standard products and weight-based pricing for bulk powders.

How results are ranked: by elemental dose per serving, chemical form, published third-party certification and cost per serving. Commission never affects position and no brand or retailer can pay for placement. We list only retailers we have a link with, so this is not a view of the whole market.

Showing 1–50 of 981 products

Allimax 100% Allicin Powder Capsules 180 mg

100% ALLICIN POWDER CAPSULES 180 MG

Allimax

100% Allicin Powder Capsules 180 mg
— · Powder

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

Full details
EVLution Nutrition 100% Isolate Protein Unflavored 1 lb (454 g)

100% ISOLATE PROTEIN UNFLAVORED 1 LB (454 G)

EVLution Nutrition

100% Isolate Protein Unflavored 1 lb (454 g)
— · Powder16 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$9.83 cost per 100 g·$0.49 cost per 5 g scoop
Full details
Applied Nutrition 14-Day Acai Berry Cleanse®

14-DAY ACAI BERRY CLEANSE®

Applied Nutrition

14-Day Acai Berry Cleanse®
— · Tablets28 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.64 cost per serving
Full details
Nature's Secret 15-Day Weight Loss Support Cleanse & Flush®

15-DAY WEIGHT LOSS SUPPORT CLEANSE & FLUSH®

Nature's Secret

15-Day Weight Loss Support Cleanse & Flush®
— · Tablets30 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.68 cost per serving
Full details
Dr. Murray's 3 Seed Superfood Protein Vegan Powder Unflavored 16 oz (435.5 g)

3 SEED SUPERFOOD PROTEIN VEGAN POWDER UNFLAVORED 16 OZ (435.5 G)

Dr. Murray's

3 Seed Superfood Protein Vegan Powder Unflavored 16 oz (435.5 g)
— · Powder

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$4.46 cost per 100 g·$0.22 cost per 5 g scoop
Full details
Irwin Naturals 3-in-1 Carb Blocker® Maximum Strength 150 Liquid Soft-Gels

3-IN-1 CARB BLOCKER® MAXIMUM STRENGTH 150 LIQUID SOFT-GELS

Irwin Naturals

3-in-1 Carb Blocker® Maximum Strength 150 Liquid Soft-Gels
— · Liquid75 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.66 cost per serving
Full details
Irwin Naturals 3-In-1 Carb Blocker® Maximum Strength 75 Liquid Soft-Gels

3-IN-1 CARB BLOCKER® MAXIMUM STRENGTH 75 LIQUID SOFT-GELS

Irwin Naturals

3-In-1 Carb Blocker® Maximum Strength 75 Liquid Soft-Gels
— · Liquid37 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.76 cost per serving
Full details
Metamucil 4-in-1 Fiber Orange Sugar-Free 15 oz (425 g)

4-IN-1 FIBER ORANGE SUGAR-FREE 15 OZ (425 G)

Metamucil

4-in-1 Fiber Orange Sugar-Free 15 oz (425 g)
— · Powder

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$10.27 cost per 100 g·$0.51 cost per 5 g scoop
Full details
Trace 40,000 Volts Electrolyte Concentrate 8 fl oz (237 ml)

40,000 VOLTS ELECTROLYTE CONCENTRATE 8 FL OZ (237 ML)

Trace

40,000 Volts Electrolyte Concentrate 8 fl oz (237 ml)
— · Liquid48 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.57 cost per serving
Full details
Thorne 5-MTHF 1 mg

5-MTHF 1 MG

Thorne

5-MTHF 1 mg
— · Capsules60 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.39 cost per serving
Full details
Ultima Replenisher 6 Essential Electrolytes Daily Electrolyte Drink Mix Mocktini Variety Pack 16 Stickpacks 2 oz (56 g)

6 ESSENTIAL ELECTROLYTES DAILY ELECTROLYTE DRINK MIX MOCKTINI VARIETY PACK 16 STICKPACKS 2 OZ (56 G)

Ultima Replenisher

6 Essential Electrolytes Daily Electrolyte Drink Mix Mocktini Variety Pack 16 Stickpacks 2 oz (56 g)
— · Powder16 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$46.37 cost per 100 g·$2.32 cost per 5 g scoop
Full details
Ultima Replenisher 6 Essential Electrolytes Daily Electrolyte Drink Mix Orange 11.1 oz (315 g)

6 ESSENTIAL ELECTROLYTES DAILY ELECTROLYTE DRINK MIX ORANGE 11.1 OZ (315 G)

Ultima Replenisher

6 Essential Electrolytes Daily Electrolyte Drink Mix Orange 11.1 oz (315 g)
— · Powder90 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$18.48 cost per 100 g·$0.92 cost per 5 g scoop
Full details
Ultima Replenisher 6 Essential Electrolytes Daily Electrolyte Drink Mix Original Variety Pack 0.11 oz (3.2 g) Each

6 ESSENTIAL ELECTROLYTES DAILY ELECTROLYTE DRINK MIX ORIGINAL VARIETY PACK 0.11 OZ (3.2 G) EACH

Ultima Replenisher

6 Essential Electrolytes Daily Electrolyte Drink Mix Original Variety Pack 0.11 oz (3.2 g) Each
— · Powder20 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$825.02 cost per 100 g·$41.25 cost per 5 g scoop
Full details
Ultima Replenisher 6 Essential Electrolytes Daily Electrolyte Drink Mix Passionfruit 11.4 oz (324 g)

6 ESSENTIAL ELECTROLYTES DAILY ELECTROLYTE DRINK MIX PASSIONFRUIT 11.4 OZ (324 G)

Ultima Replenisher

6 Essential Electrolytes Daily Electrolyte Drink Mix Passionfruit 11.4 oz (324 g)
— · Powder90 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$17.93 cost per 100 g·$0.90 cost per 5 g scoop
Full details
Ultima Replenisher 6 Essential Electrolytes Daily Electrolyte Drink Mix Tropical Variety Pack 20 Stickpacks 2.4 oz (69 g)

6 ESSENTIAL ELECTROLYTES DAILY ELECTROLYTE DRINK MIX TROPICAL VARIETY PACK 20 STICKPACKS 2.4 OZ (69 G)

Ultima Replenisher

6 Essential Electrolytes Daily Electrolyte Drink Mix Tropical Variety Pack 20 Stickpacks 2.4 oz (69 g)
— · Powder20 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$39.06 cost per 100 g·$1.95 cost per 5 g scoop
Full details
21st Century 600+D3 Calcium & Vitamin D3 Supplement

600+D3 CALCIUM & VITAMIN D3 SUPPLEMENT

21st Century

600+D3 Calcium & Vitamin D3 Supplement
— · Tablets400 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.05 cost per serving
Full details
NOW Foods Acetyl-L-Carnitine 500 mg

ACETYL-L-CARNITINE 500 MG

NOW Foods

Acetyl-L-Carnitine 500 mg
— · Capsules50 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.48 cost per serving
Full details
21st Century Acidophilus Probiotic Blend

ACIDOPHILUS PROBIOTIC BLEND

21st Century

Acidophilus Probiotic Blend
— · Capsules150 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.09 cost per serving
Full details
Nature's Way ActiFruit™ Cranberry Fruit Chew 20 Soft Chews

ACTIFRUIT™ CRANBERRY FRUIT CHEW 20 SOFT CHEWS

Nature's Way

ActiFruit™ Cranberry Fruit Chew 20 Soft Chews
— · Capsules

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

Full details
NOW Foods ADAM™ Superior Men's Multi

ADAM™ SUPERIOR MEN'S MULTI

NOW Foods

ADAM™ Superior Men's Multi
— · Softgels90 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.36 cost per serving
Full details
Adeno B12 3,000 mcg 60 Lozenges — front package
1/3

VITAMIN B12

Seeking Health

Adeno B12 3,000 mcg 60 Lozenges
Hydroxocobalamin & Adenosylcobalamin · High

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 19 Sept 2026, 15:31 UTC. Prices and availability are subject to change.

Full details
Solgar Advanced Calcium Complex + Vitamins D3 K2 Zinc Boron

ADVANCED CALCIUM COMPLEX + VITAMINS D3 K2 ZINC BORON

Solgar

Advanced Calcium Complex + Vitamins D3 K2 Zinc Boron
— · Tablets30 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.80 cost per serving
Full details
Biosil Advanced Collagen Generator® 1 fl oz (30 ml)

ADVANCED COLLAGEN GENERATOR® 1 FL OZ (30 ML)

Biosil

Advanced Collagen Generator® 1 fl oz (30 ml)
— · Liquid100 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.46 cost per serving
Full details
Biosil Advanced Collagen Generator® 120 Original Capsules

ADVANCED COLLAGEN GENERATOR® 120 ORIGINAL CAPSULES

Biosil

Advanced Collagen Generator® 120 Original Capsules
— · Capsules120 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.62 cost per serving
Full details
Biosil Advanced Collagen Generator® 60 Original Capsules

ADVANCED COLLAGEN GENERATOR® 60 ORIGINAL CAPSULES

Biosil

Advanced Collagen Generator® 60 Original Capsules
— · Capsules60 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.77 cost per serving
Full details
Life Extension Advanced Curcumin Elite™ Turmeric Extract Ginger & Turmerones

ADVANCED CURCUMIN ELITE™ TURMERIC EXTRACT GINGER & TURMERONES

Life Extension

Advanced Curcumin Elite™ Turmeric Extract Ginger & Turmerones
— · Softgels30 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.68 cost per serving
Full details
Animal Advanced Cuts Pill Packs 42 Packs

ADVANCED CUTS PILL PACKS 42 PACKS

Animal

Advanced Cuts Pill Packs 42 Packs
— · Capsules

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

Full details
Source Naturals Advanced Ferrochel™

ADVANCED FERROCHEL™

Source Naturals

Advanced Ferrochel™
— · Tablets180 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.09 cost per serving
Full details
Thorne Advanced Iron Complex

ADVANCED IRON COMPLEX

Thorne

Advanced Iron Complex
— · Capsules60 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.42 cost per serving
Full details
Forest Leaf Advanced Magnesium Complex 500 mg 120 Vegetable Capsules

ADVANCED MAGNESIUM COMPLEX 500 MG 120 VEGETABLE CAPSULES

Forest Leaf

Advanced Magnesium Complex 500 mg 120 Vegetable Capsules
— · Capsules120 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.21 cost per serving
Full details
Life Extension Advanced Milk Thistle

ADVANCED MILK THISTLE

Life Extension

Advanced Milk Thistle
— · Softgels60 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.36 cost per serving
Full details
k2o by Kylie Jenner Advanced Skin Hydration Mix Peach 20 Sticks 0.27 oz (7.6 g) Each

ADVANCED SKIN HYDRATION MIX PEACH 20 STICKS 0.27 OZ (7.6 G) EACH

k2o by Kylie Jenner

Advanced Skin Hydration Mix Peach 20 Sticks 0.27 oz (7.6 g) Each
— · Powder20 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$615.30 cost per 100 g·$30.76 cost per 5 g scoop
Full details
k2o by Kylie Jenner Advanced Skin Hydration Mix Variety Pack 20 Sticks 5.63 oz (159.7 g)

ADVANCED SKIN HYDRATION MIX VARIETY PACK 20 STICKS 5.63 OZ (159.7 G)

k2o by Kylie Jenner

Advanced Skin Hydration Mix Variety Pack 20 Sticks 5.63 oz (159.7 g)
— · Powder7 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$29.09 cost per 100 g·$1.45 cost per 5 g scoop
Full details
Life Extension Aged Black Garlic

AGED BLACK GARLIC

Life Extension

Aged Black Garlic
— · Capsules

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

Full details
Kyolic Aged Garlic Extract™ Blood Pressure Health Formula 109,240 Capsules

AGED GARLIC EXTRACT™ BLOOD PRESSURE HEALTH FORMULA 109,240 CAPSULES

Kyolic

Aged Garlic Extract™ Blood Pressure Health Formula 109,240 Capsules
— · Capsules240 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.28 cost per serving
Full details
Kyolic Aged Garlic Extract™ Cholesterol Health Formula 104,300 Capsules

AGED GARLIC EXTRACT™ CHOLESTEROL HEALTH FORMULA 104,300 CAPSULES

Kyolic

Aged Garlic Extract™ Cholesterol Health Formula 104,300 Capsules
— · Capsules150 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.25 cost per serving
Full details
Nutricost AKG (Alpha-Ketoglutaric Acid)

AKG (ALPHA-KETOGLUTARIC ACID)

Nutricost

AKG (Alpha-Ketoglutaric Acid)
— · Capsules120 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.19 cost per serving
Full details
Sports Research Alaskan Omega-3 Fish Oil

ALASKAN OMEGA-3 FISH OIL

Sports Research

Alaskan Omega-3 Fish Oil
— · Softgels90 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.44 cost per serving
Full details
Sports Research Alaskan Omega-3 Fish Oil Mini Gels

ALASKAN OMEGA-3 FISH OIL MINI GELS

Sports Research

Alaskan Omega-3 Fish Oil Mini Gels
— · Softgels120 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:05 UTC. Prices and availability are subject to change.

$0.30 cost per serving
Full details
Sports Research Alaskan Omega-3 Fish Oil Triple Strength

ALASKAN OMEGA-3 FISH OIL TRIPLE STRENGTH

Sports Research

Alaskan Omega-3 Fish Oil Triple Strength
— · Softgels180 servings

Purchase options

Approximate conversion — the retailer charges in EUR.

Prices last synced: 3 Oct 2026, 18:04 UTC. Prices and availability are subject to change.

$0.44 cost per serving
Full details

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