During the past 15 years, for athletes at the highest level of their sport, beta-alanine has become an irreplaceable tool in their daily routine to optimize performance.* As research on beta-alanine continues to grow and the number of personal testimonials increases, news of the “secret ingredient” in elite nutrition regimens has trickled down through all levels of sport and training.

In fact, earlier this year the International Olympic Committee, in its consensus statement on dietary supplements and the high-performance athlete, listed beta-alanine as one of the supplements that can directly improve sports performance.*1

Beta-alanine is an amino acid that promotes and maintains muscle endurance and output, supports muscle capacity, and fights muscle fatigue – thereby benefitting athletic performance.* 

Because increased acidity levels is a major contributor to muscle fatigue, the presence of carnosine helps maintain a normal pH in muscles by buffering the hydrogen ions created when muscles generate energy.*

However, carnosine is poorly absorbed and tends to be lower in females and in individuals who limit animal protein in their diet. This is where beta-alanine comes in – it is required to create carnosine in the body; therefore, supplementing with beta-alanine can boost carnosine levels.* 

Beta-alanine, when provided in a non-sustained-release form, can cause a tingling sensation – called paresthesia – which is not dangerous but is uncomfortable and can make it hard for an athlete to consume an adequate amount to increase carnosine levels.

To prevent this side effect, the research and design team at Thorne created our first ever tableted product that provides Beta Alanine-SR in a sustained-release formula that research has shown minimizes or eliminates the tingling sensation.2

Sports scientists have long recommended using at least 3.2 grams (equivalent to two tablets of Beta Alanine-SR twice daily) per day for a minimum of 28 days to enhance performance and training.*

Prior to the availability of the sustained-release form of beta-alanine, many athletes were unable to consume more than 3.2 grams per day without experiencing tingling. But with the use of sustained-release beta-alanine, athletes have been able to take an average of 6.4 grams per day (equivalent to four tablets of Beta Alanine-SR).

This ability to double the intake of beta-alanine has allowed elite athletes to acquire higher muscle carnosine retention than was observed at the 3.2 grams per day usage after 28 days.*3

This higher dose protocol was put to the test in the field to assess the impact on the performance of trained cyclists. Following a loading phase protocol, the cyclists took a daily average of 6.4 grams of beta-alanine over 28 days. At the end of 28 days, the supplemented group had a 9.9% increase in training intensity and a 14.9% increase in training endurance.*4

It is important to note that beta-alanine is best taken daily regardless of training schedule. Because beta-alanine works by increasing muscle concentrations of carnosine, it does not need to be taken around a training session to produce results.* This timing flexibility allows athletes to choose a one-size-fits-one loading protocol that best fits their needs and schedule. 

Sample Protocols:

High Intensity/Elite Athletes:

Goal: Average four tablets a day for 28 days

Suggested Use:

  • Off Days:  two tablets in the morning; two tablets in the afternoon
  • Training Days: two tablets pre-workout; two tablets post-workout

Alternate Suggested Use:

  • Off Days:  one tablet in the morning; one tablet in the afternoon
  • Training Days: two tablets in the morning (can adjust to evening if training in the morning); two tablets pre-workout, two tablets post-workout

Low-High Intensity/Elite Athletes: 

Goal: Average two tablets a day for 28 days 

Suggested Use:

  • Off Days:  one tablet in the morning; one tablet in the afternoon
  • Training Days: one tablet pre-workout; one tablet post-workout

Alternate Suggested Use:

  • Off Days:  one tablet in the morning or afternoon
  • Training Days: one tablet in the morning (can adjust to evening if training in the morning), one tablet pre-workout, one tablet post-workout

NSF Certified for Sport®

Because every athlete needs to know that his or her supplements are trustworthy and compliant, every batch of an NSF Certified for Sport® product is tested for compliance with label claims and to ensure the absence of more than 200 substances banned by major athletic organizations, including stimulants, narcotics, steroids, diuretics, beta-2 agents, and masking agents.


  1. Maughan R, Burke L, Dvorak J, et al. IOC consensus statement: dietary supplements and the high-performance athlete. Br J Sports Med 2018;52(7):439-455.
  2. Décombaz J, Beaumont M, Vuichoud J, et al. Effect of slow-release β-alanine tablets on absorption kinetics and paresthesia. Amino Acids 2012;43(1):67-76.
  3. Harris R, Jones G, Kim H, et al. Changes in muscle carnosine of subjects with 4 weeks supplementation with a controlled release formulation of beta-alanine (Carnosyn™), and for 6 weeks post. FASEB 2009;23(1 Suppl):599-604.
  4. Bellinger P, Minahan C. Additive benefits of β-alanine supplementation and sprint-interval training. Med Sci Sports Exerc 2016;48:2417-2425.

3.2 grams (equivalent to 2 tablets of Beta Alanine-SR twice daily) for a minimum of 28 days