King

product on market Capsule Cutler Nutrition Safety: 80/100
80/100

This product is generally safe

  • Vitamin D3: 0.12000000000000001mg is 1.2× the Tolerable Upper Intake Level (0.1mg)
  • 50% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Vitamin D3 is supported by strong evidence for maintaining bone health and immune function. The glycoprotein muscle growth blend has limited research regarding its direct impact on muscle hypertrophy. Overall, the evidence coverage for this specific ingredient profile is very low.

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

Alerts

Safety Alerts

Vitamin D3: 0.12000000000000001mg is 1.2× the Tolerable Upper Intake Level (0.1mg)

Label

Product Label

Label for King
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

4800 IU (1200% DV)
Exceeds UL by 1.2× (UL: 0.1 mg) 608 studies (A:16, B:251)
Glycoprotein Muscle Growth Blend
1 Gram(s)

Other Ingredients

Gelatin Microcrystalline Cellulose Maltodextrin Silica Zingiber officinale Capsicum annuum Cellulose Oryza sativa wax Magnesium Stearate Stearic Acid FD&C Blue No. 1 FD&C Red No. 40 FD&C Yellow No. 6 Titanium Dioxide
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Please read entire label before use. SUGGESTED USE: Take two (2) capsules daily with food, or as recommended by a healthcare practitioner.

{Capsule} X 2 CAPSULES DAILY

Warnings & Precautions

WARNINGS: Not intended for use by persons under age 18.

Do not exceed recommended dose. Do not take for more than eight (8) consecutive weeks.

Get the consent of a licensed physician before using this product, especially if you are taking medication or have a medical condition.

This product should not be taken by women.

Do not take if you are pregnant, lactating or trying to become pregnant.

Do not use if allergic or contraindicated to aspirin.

Discontinue use two weeks prior to surgery or if stomach upset occurs.

KEEP THIS PRODUCT AND ALL SUPPLEMENTS OUT OF THE REACH OF CHILDREN.

Additional Information

Think about it this way ... If Testosterone is the pedal to the gas, then Myostatin is the brake. Myostatin decreases muscle growth and differentiation - regulate Myostatin downward, and you may very well be on the way to increasing your MUSCLE GROWTH Glyco-proteins are uniquely structured compounds, which are responsible for an array of activites, including hormone regulation.

When combined with a proper exercise and nutrition regimen. Statements based on early-stage independent 3rd party in vivo and / or in vitro model scientific research data findings for individual ingredients.

mTOR ANABOLIC SIGNALING AGENT

CLINICALLY RESEARCHED INGREDIENTS 2.5X INCREASE IN IGF-2 EXPRESSION 4.5X INCREASE IN MYOGENIC REGULATORY FACTORS (MRFS) 2X INCREASE IN MUSCLE FIBERS MAY PROMOTE: ENHANCED STRENGTH LEAN MUSCLE MASS ANABOLIC ACTIVITY

Rev. 01-003-KNG001 08/14

Metadata

Product Details

UPC / SKU8 10150 02073 1
DSLD Entry Date2015-05-22
Product TypeOther Combinations
FormCapsule
DSLD ID45377
Data Updated2026-04-11
Research

Research Evidence

872
Research Sources
53
Avg Quality
309
Meta Analysis
309
Clinical Trial
111
Rct
71
Systematic Review
55
Guideline
4
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
2
Observational
1
Openfda Safety
A Vitamin D and vitamin D analogues for preventing fractures associated with involutional and post-menopausal osteoporosis
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D and vitamin D analogues for preventing fractures in post-menopausal women and older men
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Interventions for preventing falls in older people in care facilities and hospitals
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Drugs for preventing lung cancer in healthy people
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A High prevalence of vitamin D deficiency in Asia: A systematic review and meta-analysis
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A Interventions for preventing falls in older people living in the community
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
View all evidence for Vitamin D →
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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.