Heart Support by NOW — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
71% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Label Data

3 Tablet(s) Serving Size

20 Servings

Other Combinations Product Type

71% Evidence Coverage

Supplement Facts — Evidence Check

Calories

5 {Calories}

Total Carbohydrates

1 g (1% DV)

Thiamine

50 mg (3333% DV)

📊 41.7× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)

RDA 1.2mg This product: 50mg

Vitamin B6

50 mg (2500% DV)

📊 38.5× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)

RDA 1.3mg This product: 50mg UL 100mg

Folate

800 mcg (200% DV)

✅ 2.0× RDA — within safe limits 📚 225 studies (Tier A: 10, B: 105)

RDA 0.4mg This product: 0.8mg UL 1.0mg

Vitamin B12

1 mg (16667% DV)

📊 416.7× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)

RDA 0.0024mg This product: 1mg

Iodine

300 mcg (200% DV)

✅ 2.0× RDA — within safe limits 📚 243 studies (Tier A: 4, B: 133)

RDA 0.15mg This product: 0.3mg UL 1.1mg

Magnesium

200 mg (50% DV)

📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)

This product: 200mg

Selenium

140 mcg (200% DV)

✅ 2.5× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)

RDA 0.055mg This product: 0.14mg UL 0.4mg

Potassium

200 mg (6% DV)

Garlic

1 g

📊 Market median: 500.0mg (497 products) 📚 132 studies (Tier A: 0, B: 40)

This product: 1000mg

L-Carnitine

400 mg

📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)

This product: 400mg

Ginger

250 mg

📊 Market median: 250.0mg (337 products) 📚 125 studies (Tier A: 1, B: 41)

This product: 250mg

Cayenne Pepper

150 mg

Hawthorn Extract

150 mg

📊 Market median: 333.0mg (166 products) 📚 9 studies (Tier A: 0, B: 2)

This product: 150mg

Coenzyme Q10

30 mg

📊 Market median: 100.0mg (283 products) 📚 142 studies (Tier A: 1, B: 64)

This product: 30mg UL 1200mg

Alpha Lipoic Acid

20 mg

📊 Market median: 200.0mg (198 products) 📚 6 studies — no high-quality reviews

This product: 20mg

Other Ingredients

Cellulose Stearic Acid Croscarmellose Sodium Magnesium Stearate Enteric Coating

Label Claims — Verification

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (83% of products) Nutrient (47% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

SUGGESTED USAGE: As a dietary supplement, take 3 tablets daily, preferably with food. Consider taking this product in combination with NOW(R) Omega-3 Fish Oil, CoQ10 and TMG.

⚠️ Warnings & Precautions

Caution: Pregnant/lactating women or those currently taking any medications should consult with a healthcare practitioner prior to use.

Do Not Eat Freshness Packet. Keep in Bottle.

🧪 Formulation Notes

Contains no sugar, salt, yeast, wheat, gluten, soy, milk, egg, shellfish or preservatives.

• CoQ10 & Garlic • Hawthorn & L-Carnitine

Additional Information

This unique supplement has been formulated to provide nutritional support for the heart and cardiovascular system. This synergistic combination of nutrients is an excellent adjunct to an overall wellness program focused on a low saturated fat diet and regular exercise.*

Store in a cool, dry place.

Please Recycle.

Made in the U.S.A. ACTUAL SIZE

CARDIOVASCULAR HEALTH*

ENTERIC COATED

GMP QUALITY ASSURED

CODE 3284T V3

Product Details

UPC / SKU 7 33739 03284 3

DSLD Entry Date 2012-10-25

Product Type Other Combinations

Form Tablet or Pill

Brand NOW

DSLD ID 14886

Data Updated 2026-04-11

Research Evidence

100 Research Sources

56 Avg Quality Score

48 Systematic Review

30 Meta Analysis

13 Rct

6 Clinical Trial

1 Cochrane Review

1 Regulatory Source

B Thiamine for prevention and treatment of Wernicke-Korsakoff Syndrome in people who abuse alcohol

Systematic Review The Cochrane database of systematic reviews 2013

PubMed DOI Cochrane

B Efficacy of B-vitamins and vitamin D therapy in improving depressive and anxiety disorders: a systematic review of randomized controlled trials

Systematic Review Nutritional neuroscience 2023

PubMed DOI

B Effect of thiamine supplementation on glycaemic outcomes in adults with type 2 diabetes: a systematic review and meta-analysis

Meta Analysis BMJ open 2022

PubMed DOI

B Effect of intravenous thiamine administration on critically ill patients: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2024

PubMed DOI

B Effect of adjunctive vitamin C, glucocorticoids, and vitamin B1 on longer-term mortality in adults with sepsis or septic shock: a systematic review and a component network meta-analysis

Systematic Review Intensive care medicine 2022

PubMed DOI

B Effect of Combined Diclofenac and B Vitamins (Thiamine, Pyridoxine, and Cyanocobalamin) for Low Back Pain Management: Systematic Review and Meta-analysis

Meta Analysis Pain medicine (Malden, Mass.) 2020

PubMed DOI

B Thiamine, Ascorbic Acid, and Hydrocortisone As a Metabolic Resuscitation Cocktail in Sepsis: A Meta-Analysis of Randomized Controlled Trials With Trial Sequential Analysis

Meta Analysis Critical care medicine 2021

PubMed DOI

B The effects of thiamine supplementation on patients with heart failure: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Complementary therapies in medicine 2022

PubMed DOI

B Hydrocortisone Combined with Vitamin C and Thiamine in the Treatment of Sepsis/Septic Shock: A Systematic Review with Meta-Analysis and Trial Sequential Analysis

Meta Analysis Clinical and investigative medicine. Medecine clinique et experimentale 2023

PubMed DOI

B Thiamine for Wernicke-Korsakoff Syndrome in people at risk from alcohol abuse

Systematic Review The Cochrane database of systematic reviews 2004

PubMed Cochrane

View all evidence for Thiamine →