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Day Starter

product on market Tablet or Pill Source Naturals Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Green tea extract and L-theanine are supported by moderate evidence for enhancing alertness and cognitive focus. Calcium serves as a fundamental mineral for neuromuscular function and bone health. Overall, these ingredients are well-documented in research for supporting general metabolic and mental performance.

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

Label

Product Label

Label for Day Starter
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Tablet(s)
Serving Size
Other Combinations
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calcium
21 mg (2% DV)
Market median: 260.0mg (249 products) 158 studies (A:4, B:61)
200 mg
Market median: 200.0mg (358 products) 9 studies (A:0, B:2)

Other Ingredients

Microcrystalline Cellulose Dibasic Calcium Phosphate Hydroxypropyl Cellulose Magnesium Stearate modified Cellulose Gum Silica
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: 1 tablet 1 to 2 times daily with a meal. Do not take before bedtime.

We suggest you start with one tablet but increase to two if the desired effect is not achieved.

Warnings & Precautions

Caution: For adult use only. Each tablet contains 100 mg of naturally occurring caffeine, which is approximately the amount contained in one cup of coffee. Caffeine can cause nervousness, irritability, sleeplessness or rapid heartbeat.

If you are pregnant, may become pregnant, or breastfeeding, 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.

Formulation Notes

Each tablet contains 100 mg of naturally occurring caffeine, which is approximately the amount contained in one cup of coffee.

Suitable for Vegans and Vegetarians.

Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

Additional Information

For calm energy and focus

In contrast to the nervousness that can come from consuming excess caffeine by itself, these two ingredients work together to provide calm, focused energy. Clinical research has shown that caffeine and L-theanine have a synergistic effect on attention and accuracy, and together support healthy focus and memory better than the use of each ingredient by itself.

Store in a cool, dry place.

SN2764 REV L163

Metadata

Product Details

UPC / SKU0 21078 02764 5
DSLD Entry Date2017-08-22
Product TypeOther Combinations
FormTablet or Pill
DSLD ID75641
Data Updated2026-04-11
Research

Research Evidence

849
Research Sources
56
Avg Quality
450
Meta Analysis
152
Rct
137
Systematic Review
73
Clinical Trial
11
Regulatory Source
7
Other
7
Guideline
3
Openfda Safety
2
Cochrane Review
2
Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008 PubMed DOI
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019 PubMed DOI
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021 PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
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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.