Tier 1's (by Citadel Nutrition) ability to increase strength is rated as 1.63 out of 3. This rating means the evidence is mixed on the product's ability to deliver on this claim. While some of the evidence supports its use, other evidence does not. Using Tier 1 to increase strength may lead to positive results. This rating is different from the product's overall rating and is based on what peer reviewed journal articles conclude on its ability to perform this one claim. This page contains an indepth analysis on how this claim-rating was calculated.

Note: The ratings on this page only deal with Tier 1's ability to increase strength. To view the product's overall rating, visit the product's main page: Tier 1.

Table of Contents

  1. Simple Report
  2. Detailed Report
  3. References

Simple Report

Detailed Report

The detailed report is an in-depth analysis on how Tier 1's rating for this particular claim was calculated.

Claim Effectiveness Ratings

Each supplement product is a blend of ingredients. The database uses peer reviewed journal articles to rate the ingredients. These ratings are also used to rate how well products perform overall as well as on individual claims.

The supplement ingredients listed in table below are identified as affecting Tier 1's ability to increase strength. The rating next to the ingredient describes the ingredient's ability to increase strength. These ratings are averaged together and provide the product's overall ability to deliver on the same claim.

Ingredients Increase Strength Rating
Creatine Monohydrate 2.3 out of 3
Beta Alanine 1.5 out of 3
Tyrosine 1 out of 3
Caffeine 1.7 out of 3
Product's Claim Effectiveness Rating 1.63 out of 3

Claim Research Ratings

The research rating describes how well an ingredient's ability to perform a certain claim (such as increase strength) has been researched. This rating is based on the amount of studies contained in the database on a particular ingredient and claim. Ingredient research ratings are averaged together to from the product's research rating for this specific cliam.

This rating is important because we need to know if there is enough research to make a valid conclusion on a product's worthiness. Ratings above 80 are ideal. Anything below 60 means there is not enoguh research to make a valid conclusion one way or another on a product's ability to deliver on this particular claim.

Ingredients Increase Strength Research Rating
Creatine Monohydrate
Beta Alanine
Product's Claim Research Rating


Effects of Whey Isolate, Creatine, and Resistance Training on Muscle Hypertrophy
The effect of whey protein supplementation with and without creatine monohydrate combined with resistance training on lean tissue mass and muscle strength
Effects of creatine supplementation on isometric force-time curve characteristics
Effects of creatine on isometric bench-press performance in resistance-trained humans
Effects of creatine supplementation on muscle power, endurance, and sprint performance
Short and longer-term effects of creatine supplementation on exercise induced muscle damage
Creatine supplementation improves the anaerobic performance of elite junior fin swimmers
Effects of 4-Week Creatine Supplementation Combined with Complex Training on Muscle Damage and Sport Performance
The Effects of Creatine Supplementation on Explosive Performance and Optimal Individual Postactivation Potentiation Time
Effects of creatine supplementation on the onset of neuromuscular fatigue threshold and muscle strength in elderly men and women (64 - 86 years)
Creatine supplementation enhances isometric strength and body composition improvements following strength exercise training in older adults
Effects of creatine supplementation on body composition, strength, and sprint performance
Effects of creatine monohydrate supplementation during combined strength and high intensity rowing training on performance
Effects of Creatine Supplementation on Athletic Performance and Body Composition after Complex Training
Effects of Coffee and Caffeine Anhydrous Intake During Creatine Loading
The effects of creatine monohydrate loading on anaerobic performance and one-repetition maximum strength
The effects of creatine monohydrate supplementation with and without D-pinitol on resistance training adaptations
Creatine but not betaine supplementation increases muscle phosphorylcreatine content and strength performance
Is Long Term Creatine and Glutamine Supplementation Effective in Enhancing Physical Performance of Military Police Officers?
A buffered form of creatine does not promote greater changes in muscle creatine content, body composition, or training adaptations than creatine monohydrate
The effects of creatine ethyl ester supplementation combined with heavy resistance training on body composition, muscle performance, and serum and muscle creatine levels
Creatine HCl and Creatine Monohydrate Improve Strength but Only Creatine HCl Induced Changes on Body Composition in Recreational Weightlifters
The Effects of Creatine Monohydrate and Creatine Hydrochloride Supplementation on Power in Trained Individuals
Mg2+-creatine chelate and a low-dose creatine supplementation regimen improve exercise performance
The effects of 10 weeks of resistance training combined with beta-alanine supplementation on whole body strength, force production, muscular endurance and body composition
Effects of β-alanine supplementation during a 5-week strength training program: a randomized, controlled study
Beta-Alanine Does Not Enhance the Effects of Resistance Training in Older Adults
Effects of β-Alanine on Body Composition and Performance Measures in Collegiate Women
Ingestion of Tyrosine: Effects on Endurance, Muscle Strength, and Anaerobic Performance
The effect of acute pre-workout supplementation on power and strength performance
The acute effects of a caffeine-containing supplement on strength, muscular endurance, and anaerobic capabilities
Acute effects of a caffeine-containing supplement on bench press and leg extension strength and time to exhaustion during cycle ergometry
Acute ingestion of sugar-free red bull energy drink has no effect on upper body strength and muscular endurance in resistance trained men
Acute Specific Effects of Caffeine-containing Energy Drink on Different Physical Performances in Resistance-trained Men
Caffeine improves muscular performance in elite Brazilian Jiu-jitsu athletes
Caffeine ingestion acutely enhances muscular strength and power but not muscular endurance in resistance-trained men
The acute effects of a caffeine-containing supplement on bench press strength and time to running exhaustion
The effects of supplementation with P-Synephrine alone and in combination with caffeine on resistance exercise performance
The effect of ephedra and caffeine on maximal strength and power in resistance-trained athletes
The effect of caffeine as an ergogenic aid in anaerobic exercise
Effects of Coffee and Caffeine Anhydrous Intake During Creatine Loading