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Cardio-Support

product on market Tablet or Pill Xtendlife Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 46% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

This formula contains Vitamin C and Vitamin E, which are supported by strong evidence for their roles as antioxidants in cellular protection. The remaining components are basic macronutrients with limited relevance to targeted cardiovascular support. Overall, the evidence coverage for the specific ingredient profile is very low.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Cardio-Support
Open Full PDF View on NIH DSLD →
Details

Label Data

6 Tablet(s)
Serving Size
20
Servings
Other Combinations
Product Type
46%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
20 Calorie(s)
Total Fat
0.5 Gram(s) (1% DV)
Total Carbohydrates
2 Gram(s) (1% DV)
Vitamin C
143 mg (238% DV)
59 IU (197% DV)
2.6× RDA — within safe limits 179 studies (A:3, B:90)
49 mcg (61% DV)
Within RDA (0.4× RDA) 275 studies (A:9, B:175)
1.1 mg (58% DV)
Within RDA (0.8× RDA) 13 studies (A:0, B:1)
6.8 mg (340% DV)
5.2× RDA — above typical dose (UL: 100 mg) 114 studies (A:3, B:35)
323 mcg (81% DV)
Within RDA (0.8× RDA) 226 studies (A:10, B:105)
2.5 mcg (42% DV)
Within RDA (1.0× RDA) 139 studies (A:1, B:44)
45 mg (450% DV)
9.0× RDA — above typical dose 2 studies — no high-quality reviews
Calcium
44 mg (4% DV)
22 mg (2% DV)
Market median: 99.0mg (503 products) 13 studies (A:0, B:3)
25 mg (6% DV)
Within RDA (0.1× RDA) 316 studies (A:8, B:159)
9 mg (60% DV)
Within RDA (0.8× RDA) 263 studies (A:6, B:134)
120 mcg (171% DV)
2.2× RDA — within safe limits 173 studies (A:0, B:67)
110 mcg (92% DV)
3.1× RDA — above typical dose 199 studies (A:1, B:55)
449 mg
Market median: 500.0mg (180 products) 5 studies (A:0, B:1)
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
Market median: 500.0mg (234 products) 95 studies (A:0, B:35)
Arjuna bark extract
250 mg
Market median: 260.0mg (249 products) 158 studies (A:4, B:61)
MSM
200 mg
Market median: 1000.0mg (2 products)
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
198 mg
Market median: 500.0mg (193 products) 7 studies — no high-quality reviews
Hesperidin
147 mg
Market median: 100.0mg (284 products) 10 studies (A:0, B:4)
Within RDA (0.2× RDA) 38 studies (A:1, B:7)
Market median: 200.0mg (198 products) 6 studies — no high-quality reviews
100 mg
Market median: 200.0mg (136 products) 3 studies — no high-quality reviews
Butcher's Broom root extract
100 mg
Market median: 333.0mg (166 products) 9 studies (A:0, B:2)
100 mg
Market median: 60.0mg (94 products) 13 studies (A:0, B:7)
L-Valine
100 mg
Jujube seed extract
100 mg
N-Acetyl L-Cysteine
98 mg
98 mg
Market median: 496.0mg (192 products) 20 studies — no high-quality reviews
98 mg
Market median: 550.0mg (217 products) 29 studies (A:0, B:5)
Market median: 120.0mg (440 products) 191 studies (A:1, B:71)
Grape skin extract
60 mg
Market median: 100.0mg (70 products)
Guggul Gum extract
50 mg
L-Proline
50 mg
Red Clover leaf & stem extract
50 mg
Market median: 450.0mg (254 products) 243 studies (A:0, B:100)
49 mg
Market median: 500.0mg (19 products)
Market median: 100.0mg (283 products) 144 studies (A:1, B:64)
Piperine
28 mg
Market median: 167.0mg (311 products) 183 studies (A:0, B:65)
reduced Glutathione
17 mg
Policosanol
17 mg
Lipase
10 mg
Serrazimes Protease
10 mg
Vinpocetine
4.7 mg

Other Ingredients

Microcrystalline Cellulose Enteric Coating Dextrose Maltodextrin Tripotassium Citrate Silicon Dioxide Sodium Carboxymethyl Cellulose
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions For Use Adult Optimum Dose: 6 tablets per day. Adult Maintenance Dose: 4 tablets per day. Take 6 tablets first thing in the morning or split into 2 doses, in the morning and later in the day.

Warnings & Precautions

Contains soy.

Formulation Notes

Contains soy.

Does not contain dairy, gluten, shellfish or peanuts.

Additional Information

Store in a cool, dry place.

L1015-11

Best quality guarantee Advanced formula enteric coated

Made in New Zealand

Metadata

Product Details

DSLD Entry Date2017-12-22
Product TypeOther Combinations
FormTablet or Pill
DSLD ID82166
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.