Beta-alanine explained: what it is and side effects

Beta-alanine is an amino acid found in meat, poultry, and fish, and your liver also makes it. The NIH says your body uses beta-alanine to make carnosine in the muscles attached to your bones. Three products we reviewed list beta-alanine, but none prints its individual amount.

OHONH₂OHONH₂
What it is
Amino acid
Amounts the NIH names
For healthy people willing to try beta-alanine supplements, the International Society of Sports Nutrition recommends an initial daily amount of 4 to 6 grams, divided into doses of 2 grams or less, for at least 2 weeks.
In the products we reviewed
3, none prints the amount

What beta-alanine is

  • Beta-alanine comes from animal-based foods such as meat, poultry, and fish, and your liver also makes it.1
  • Your body uses beta-alanine to make carnosine in the muscles attached to your bones.2
  • Beta-alanine supplements increase muscle carnosine levels, but the amount of increase varies from person to person.2
  • Taking smaller divided doses or a sustained-release form can lessen or avoid the tingling sensation caused by beta-alanine.2

Foods that have it2

  • meat
  • poultry
  • fish

Works with

  • histidine. Beta-alanine and histidine are the two amino acids that make up carnosine in skeletal muscle.1

How much beta-alanine each product gives

Per serving, as each label prints it, against the amounts the NIH names

NIH: 4,000 mg to 6,000 mg per dose

Amount not printed: the dashed line shows the most it can be, the whole blend

GlucoTonicNot printed · at most 200 mg
Sugar DefenderNot printed · at most 200 mg
Glyco HarmonyNot printed · at most 200 mg

Before you take it

Side effects

  • The tingling sensation can last 60 to 90 minutes but is not considered serious or harmful.2
  • Beta-alanine supplements can cause itchy skin.1

Ask a doctor first

  • The safety of taking beta-alanine supplements daily for more than several months is unknown.2

These statements have not been evaluated by the FDA. A supplement is not a medicine.

The 3 products we reviewed that list beta-alanine

ProductForm and servingBeta-alanine per servingOur scorePrice a bottleBuy
GlucoTonic#1 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.9$49Check price
Sugar Defender#3 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.5$49Check price
Glyco Harmony#5 in blood sugar supportLiquid drops1 mlNot printedIn a 200 mg proprietary blend9.3$49Check price
Prices checked Oct 5, 2026

Questions people ask

Is beta-alanine an amino acid?

Yes, beta-alanine is an amino acid. Beta-alanine and histidine are the two amino acids that make up carnosine in skeletal muscle.

How much beta-alanine should I take per day?

The initial daily amount in the recommendation cited by the NIH is 4 to 6 grams. The recommendation is to divide that amount into doses of 2 grams or less for at least two weeks.

What are the side effects of beta-alanine?

Beta-alanine supplements can cause tingling and itchy skin. The tingling can last 60 to 90 minutes but is not considered serious or harmful.

How do I take beta-alanine to avoid tingling?

Smaller divided doses or a sustained-release form can lessen or avoid the tingling sensation caused by beta-alanine, according to the NIH.

Is beta-alanine safe to take every day?

The safety of taking beta-alanine supplements daily for more than several months is unknown. Ask a clinician before starting.

Which products we reviewed contain beta-alanine, and how much?

GlucoTonic, Sugar Defender, and Glyco Harmony list beta-alanine. Each lists it inside a 200 mg proprietary blend per 1 ml serving, but none prints the individual beta-alanine amount. The 200 mg is the blend amount, not the beta-alanine amount.

Also in these products

Sources

The products, amounts and prices come from each product's label and checkout, as its review shows them. AI drafts our pages from listed sources, figures are checked against them, and we have not tried the products.

  1. 1NIH Office of Dietary Supplements, ExerciseAndAthleticPerformance HealthProfessionalods.od.nih.gov/factsheetschecked
  2. 2NIH Office of Dietary Supplements, ExerciseAndAthleticPerformance Consumerods.od.nih.gov/factsheetschecked