PlainVitamins

Heart Science

by Source Naturals · tablet or pill · 120 tablets

  • On the market (NIH)
  • UPC 0 21078 00341 0
  • DSLD label 274660
  • Serving 3 to 6 tablets; amounts per 6 tablets
  • 20 servings

Heart Science by Source Naturals lists 44 ingredients, 44 with an amount per serving of 6 tablets, such as 25,000 IU of vitamin A, 1,000 mg of vitamin C, 400 IU of vitamin E and 50 mg of thiamine, beside 4 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on November 22, 2022.

What is in Heart Science?

Each row as the label prints it, per serving of 6 tablets. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Heart Science: Supplement Facts rows against the market (DSLD label 274660, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories30 Calories
Total Carbohydrate1 g1%Carbohydrate in Heart Science against 21,979 products1 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.1 g

74% of 21,979 products listing carbohydrate give more (median 3 g).

Dietary Fiber1 g4%Fiber in Heart Science against 6,987 products1 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.1 g

56% of 6,987 products listing fiber give more (median 2 g).

Protein1 g2%Protein in Heart Science against 8,985 products1 g per serving; the middle half of products list 2 g to 24 g, the median 16 g.1 g

77% of 8,985 products listing protein give more (median 16 g).

Vitamin Aas Beta-Carotene25,000 IU500%Vitamin A in Heart Science against 5,772 products25,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.25,000 IU

Higher than 96% of 5,772 products listing vitamin A (median 4,000 IU).

Vitamin Cas Ascorbic Acid1,000 mg1,670%Vitamin C in Heart Science against 18,583 products1,000 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,000 mg

Higher than 91% of 18,583 products listing vitamin C (median 100 mg).

Vitamin Eas D-Alpha-Tocopheryl Succinate, Gamma-Vitamin E Complex400 IU1,333%Vitamin E in Heart Science against 6,459 products400 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.400 IU

Higher than 91% of 6,459 products listing vitamin E (median 30 IU).

Thiamineas Vitamin B150 mg3,333%Thiamin in Heart Science against 9,830 products50 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg50 mg

Higher than 82% of 9,830 products listing thiamin (median 5 mg).

Nicotinic Acidas Inositol Hexanicotinate500 mg2,500%Niacin in Heart Science against 12,413 products500 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg500 mg

Higher than 98% of 12,413 products listing niacin (median 20 mg). 14.3 times the adult UL a day.

Vitamin B6as Pyridoxal-5'-Phosphate, Pyridoxine Hydrochloride50 mg2,500%Vitamin B6 in Heart Science against 15,277 products50 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg50 mg

Higher than 87% of 15,277 products listing vitamin B6 (median 6 mg).

Folateas Folic Acid800 mcg200%Folate in Heart Science against 7,022 products800 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.800 mcg

Higher than 81% of 7,022 products listing folate (median 400 mcg).

Vitamin B12as Dibencozide, Methylcobalamin500 mcg8,333%Vitamin B12 in Heart Science against 14,425 products500 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg500 mcg

Higher than 82% of 14,425 products listing vitamin B12 (median 36 mcg).

Magnesiumas Magnesium Oxide300 mg75%Magnesium in Heart Science against 14,003 products300 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg300 mg

Higher than 87% of 14,003 products listing magnesium (median 86 mg).

Seleniumas L-Selenomethionine200 mcg286%Selenium in Heart Science against 7,658 products200 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg200 mcg

Higher than 82% of 7,658 products listing selenium (median 55 mcg).

Copperas Copper Sebacic Acid Complex750 mcg36%Copper in Heart Science against 6,468 products0.75 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.75 mg

64% of 6,468 products listing copper give more (median 1 mg).

Chromium300 mcg250%Chromium in Heart Science against 7,825 products300 mcg per serving; the middle half of products list 45 mcg to 200 mcg, the median 100 mcg.DV 35 mcg300 mcg

Higher than 92% of 7,825 products listing chromium (median 100 mcg).

ChromeMateas Chromium Polynicotinate150 mcg
Chromium Picolinate150 mcgChromium Picolinate in Heart Science against 121 products150 mcg per serving; the middle half of products list 100 mcg to 500 mcg, the median 200 mcg.150 mcg

60% of 121 products listing chromium picolinate give more (median 200 mcg).

Sodium20 mg1%Sodium in Heart Science against 14,514 products20 mg per serving; the middle half of products list 15 mg to 142 mg, the median 55 mg.20 mg

67% of 14,514 products listing sodium give more (median 55 mg).

Potassiumas Potassium Citrate99 mg3%Potassium in Heart Science against 11,614 products99 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg99 mg

49% of 11,614 products listing potassium give more (median 99 mg).

L-Arginine HCl500 mgArginine in Heart Science against 1,455 products500 mg per serving; the middle half of products list 167 mg to 1,000 mg, the median 500 mg.500 mg

47% of 1,455 products listing arginine give more (median 500 mg).

Bromelain(2,000 G.D.U. per gram) (Gelatin Digestion Units)500 mgBromelain in Heart Science against 1,337 products500 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.500 mg

Higher than 90% of 1,337 products listing bromelain (median 50 mg).

L-Taurine500 mgTaurine in Heart Science against 2,337 products500 mg per serving; the middle half of products list 110 mg to 1,000 mg, the median 500 mg.500 mg

45% of 2,337 products listing taurine give more (median 500 mg).

L-Carnitine Fumarate400 mgL-Carnitine in Heart Science against 1,338 products400 mg per serving; the middle half of products list 110.5 mg to 1,000 mg, the median 500 mg.400 mg

58% of 1,338 products listing L-carnitine give more (median 500 mg).

L-Lysine HCl400 mgLysine in Heart Science against 1,250 products400 mg per serving; the middle half of products list 148.25 mg to 996.25 mg, the median 500 mg.400 mg

56% of 1,250 products listing lysine give more (median 500 mg).

L-Proline400 mgProline in Heart Science against 387 products400 mg per serving; the middle half of products list 100 mg to 1,289 mg, the median 487.5 mg.400 mg

52% of 387 products listing proline give more (median 487.5 mg).

Gamma-Vitamin E Complex400 mg
Hawthorn berry extract200 mgHawthorn in Heart Science against 589 products400 mg per serving; the middle half of products list 75 mg to 400 mg, the median 200 mg.400 mg

Higher than 72% of 589 products listing hawthorn (median 200 mg).

Hawthorn Extractas Hawthorn Flower Extract, Hawthorn leaf extract200 mg
Inositolas Inositol Hexanicotinate140 mgInositol in Heart Science against 4,042 products140 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.140 mg

Higher than 87% of 4,042 products listing inositol (median 30 mg).

Proanthodynas Grape seed extract120 mgProanthocyanidins in Heart Science against 164 products120 mg per serving; the middle half of products list 12.5 mg to 95 mg, the median 36 mg.120 mg

Higher than 85% of 164 products listing proanthocyanidins (median 36 mg).

N-Acetyl Glucosamine100 mgN-Acetyl Glucosamine in Heart Science against 148 products100 mg per serving; the middle half of products list 79 mg to 500 mg, the median 250 mg.100 mg

66% of 148 products listing N-acetyl glucosamine give more (median 250 mg).

Turmeric Rhizome Extractas Curcuminoids95% Curcuminoids100 mgTurmeric in Heart Science against 2,369 products100 mg per serving; the middle half of products list 50 mg to 500 mg, the median 150 mg.100 mg

57% of 2,369 products listing turmeric give more (median 150 mg).

Soybean Isoflavone Concentrate100 mgIsoflavones in Heart Science against 290 products100 mg per serving; the middle half of products list 25 mg to 80 mg, the median 50 mg.100 mg

Higher than 79% of 290 products listing isoflavones (median 50 mg).

Total Isoflavones40 mg
Trimethylglycine100 mgBetaine in Heart Science against 731 products100 mg per serving; the middle half of products list 50 mg to 1,250 mg, the median 250 mg.100 mg

60% of 731 products listing betaine give more (median 250 mg).

Horsetail aerial parts extractas Silica100 mgHorsetail in Heart Science against 519 products100 mg per serving; the middle half of products list 20 mg to 200 mg, the median 67 mg.100 mg

Higher than 54% of 519 products listing horsetail (median 67 mg).

Arjuna bark extract100 mgTerminalia in Heart Science against 86 products100 mg per serving; the middle half of products list 100 mg to 700 mg, the median 425 mg.100 mg

73% of 86 products listing terminalia give more (median 425 mg).

Alpha-Lipioc Acid100 mgAlpha Lipoic Acid in Heart Science against 2,407 products100 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.100 mg

Higher than 56% of 2,407 products listing alpha lipoic acid (median 50 mg).

Coenzyme Q1060 mgCoenzyme Q-10 in Heart Science against 2,922 products60 mg per serving; the middle half of products list 30 mg to 100 mg, the median 60 mg.60 mg

48% of 2,922 products listing coenzyme Q-10 give more (median 60 mg).

Garlicas Allicinstandardized to 10,000 ppm allicin60 mgGarlic in Heart Science against 1,075 products60 mg per serving; the middle half of products list 50 mg to 500 mg, the median 200 mg.60 mg

69% of 1,075 products listing garlic give more (median 200 mg).

Ginkgo leaf extractas Flavone Glycosides, Terpene Lactones60 mgGinkgo in Heart Science against 1,339 products60 mg per serving; the middle half of products list 30 mg to 120 mg, the median 60 mg.60 mg

45% of 1,339 products listing ginkgo give more (median 60 mg).

Quercetin50 mgQuercetin in Heart Science against 1,548 products50 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.50 mg

56% of 1,548 products listing quercetin give more (median 100 mg).

GliSODin50 mg
Total Resveratrolas Polygonum cuspidatum Root Extract40 mgResveratrol in Heart Science against 1,123 products40 mg per serving; the middle half of products list 20 mg to 125 mg, the median 50 mg.40 mg

55% of 1,123 products listing resveratrol give more (median 50 mg).

Nattokinase36 mgNattokinase in Heart Science against 141 products36 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.36 mg

88% of 141 products listing nattokinase give more (median 100 mg).

Chinese Salvia root extract30 mgRed-Rooted Sage in Heart Science against 36 products30 mg per serving; the middle half of products list 86.25 mg to 730 mg, the median 175 mg.30 mg

94% of 36 products listing red-rooted sage give more (median 175 mg).

Guggul Extractas Guggulsterones10% Guggulsterones30 mgGuggul in Heart Science against 279 products30 mg per serving; the middle half of products list 50 mg to 350 mg, the median 100 mg.30 mg

88% of 279 products listing guggul give more (median 100 mg).

Myricetinas Bayberry bark extract, Bayberry Leaf Extract25 mg
EVNolMaxas Tocotrienol Complex20 mg

Source: NIH ODS Dietary Supplement Label Database, label 274660 (entered November 22, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 25,000 IU of vitamin A is higher than 96% of the 5,772 vitamin A products that print an amount; 32 list more.
  • Its 1,000 mg of vitamin C is higher than 91% of the 18,583 vitamin C products that print an amount; 445 list more.
  • Its 400 IU of vitamin E (3 rows of the label added together) is higher than 91% of the 6,459 vitamin E products that print an amount; 120 list more.
  • At 1 serving a day, the most its directions give, the label lists 500 mg of niacin, 14.3 times the adult Tolerable Upper Intake Level.
  • Its 300 mcg of chromium is higher than 92% of the 7,825 chromium products that print an amount; 577 list more.
  • 94% of the 36 products that print an amount of red-rooted sage list more than its 30 mg of chinese salvia root extract (filed by NIH under red-rooted sage) (median 175 mg).

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Heart Science's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Use: 3 to 6 tablets daily with a meal.
Warnings
Contains shellfish (shrimp/crab/lobster), wheat, and soy.
Warning: If you are pregnant, may become pregnant, or breastfeeding, or regularly taking any drug such as acetaminophen, prescription vitamin K, warfarin (Coumadin), or heparin, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.

Source: label statements in DSLD label 274660.

What else is on the label?

Other ingredients: Stearic Acid, modified Cellulose Gum, Silica, Magnesium Stearate.

How many labels does Heart Science have?

One label is on file, entered on November 22, 2022.

  1. Label 274660 (current) Entered November 22, 2022 · on the market · 120 tablets · UPC 0 21078 00341 0

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?