NAT Heart Tart Charged by Pruvit KETO//OS — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
38% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Label Data

19.9 Gram(s) Serving Size

1 Servings

Other Combinations Product Type

38% Evidence Coverage

Supplement Facts — Evidence Check

Calories

50 Calorie(s)

Total Carbohydrate

6 Gram(s) (2% DV)

Vitamin B6

5 mg (294% DV)

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

RDA 1.3mg This product: 5mg UL 100mg

Vitamin B12

100 mcg (4167% DV)

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

RDA 0.0024mg This product: 0.1mg

Calcium

230 mg (18% DV)

Magnesium

235 mg (56% DV)

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

This product: 235mg

Sodium

910 mg (39% DV)

N8 Max Nat Blend

12.6 Gram(s)

Other Ingredients

Erythritol Malic Acid Natural flavor Rebaudioside A Caffeine Xanthan Gum

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (89% of products) Nutrient (56% of products)

Target Groups

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

Product Information

📋 Directions for Use

Directions: Dissolve 1 packet in 12-16 oz of cold water & shake/stir vigorously and with purpose. Can be taken with or without food.

Must be consumed with SIGNAL//OS for DNA repair and other therapeutic benefits associated with C-Med 100.

⚠️ Warnings & Precautions

This unit not labeled for individual resale

This product is not a medical treatment, medicine, or weight loss supplement.

Caffeine equivalent to a 12-16 oz cup of coffee.

🧪 Formulation Notes

Ketones made naturally

No artificial flavors or sweeteners

C-Med 100 DNA Repair

Keto

Gluten-free Dairy-free

K Parve Kosher Certified

1 g Net carbs per serving Net Carbs = Total Carbs - Fiber - Sugar Alcohols

Additional Information

Doctor formulated

K Parve Kosher Certified

Storage: No refrigeration required. Keep at room temperature and away from direct sunlight.

Product Details

DSLD Entry Date 2023-12-14

Product Type Other Combinations

Form Powder

Brand Pruvit KETO//OS

DSLD ID 304474

Data Updated 2026-04-11

Research Evidence

237 Research Sources

53 Avg Quality Score

83 Meta Analysis

74 Systematic Review

45 Rct

29 Clinical Trial

2 Guideline

2 Regulatory Source

1 Openfda Safety

A Associations between serum Homocysteine, vitamin B9, and vitamin B12 levels and the formation of intracranial Aneurysms: A systematic review and meta-analysis

Meta Analysis Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 2025

PubMed DOI

A Intake of vitamin B6, folate, and vitamin B12 and risk of coronary heart disease: a systematic review and dose-response meta-analysis of prospective cohort studies

Meta Analysis Critical reviews in food science and nutrition 2019

PubMed DOI

A Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency

Systematic Review The Cochrane database of systematic reviews 2018

PubMed DOI Cochrane

A Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression

Meta Analysis Nutrients 2021

PubMed DOI

A Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis

Systematic Review Irish journal of medical science 2024

PubMed DOI

B Helicobacter pylori infection and micronutrient deficiency in pregnant women: a systematic review and meta-analysis

Meta Analysis BMJ open gastroenterology 2020

PubMed DOI

B Vitamin B12 supplementation during pregnancy for maternal and child health outcomes

Systematic Review The Cochrane database of systematic reviews 2024

PubMed DOI Cochrane

B A comprehensive review and meta-regression analysis of randomized controlled trials examining the impact of vitamin B12 supplementation on homocysteine levels

Meta Analysis Nutrition reviews 2024

PubMed DOI

B Relationship between vitamin B12 levels and motor development: A systematic review

Systematic Review Clinical nutrition ESPEN 2024

PubMed DOI

B Vitamin B12, folate, and homocysteine in metabolic syndrome: a systematic review and meta-analysis

Meta Analysis Frontiers in endocrinology 2023

PubMed DOI

View all evidence for Vitamin B12 →