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AMINO ACIDS

Acetyl-L-carnitine

Acetyl-L-carnitine helps cells turn fat into energy and supports focus and healthy brain function.

Also known as: ALCAR, acetylcarnitine, acetyl L-carnitine

Who should be careful

Our safety rules leave Acetyl-L-carnitine out of a formula, or keep the amount lower, with:

Life stage

• Pregnancy
• Breastfeeding
• Trying to conceive

Always check with your doctor or pharmacist before adding a supplement if you take medication, are pregnant or nursing, or have a health condition. Stay under the upper limit from all sources combined, including multivitamins.

Symptoms it’s studied for

• Tired or low energy
• Afternoon crash
• Brain fog or poor focus
• Muscle cramps or twitches

Questions

How much Acetyl-L-carnitine a day?

apiece formulas usually include 1,500 mg a day. The recommended intake for adults is No recommended intake (not an essential nutrient). Upper limit: No established UL.

What is Acetyl-L-carnitine used for?

Acetyl-L-carnitine helps cells turn fat into energy and supports focus and healthy brain function. In apiece it is part of formulas for Focus & memory, Energy & vitality.*

Who should be careful with Acetyl-L-carnitine?

apiece’s safety rules leave it out or limit it with: Pregnancy; Breastfeeding; Trying to conceive. Check with your doctor or pharmacist if any apply to you.

Can I get Acetyl-L-carnitine in a personalized supplement?

Yes. apiece builds one daily blend around your goals and, if you have them, your lab results. Acetyl-L-carnitine can be part of it at the amount listed, with every ingredient shown and never more than 10 capsules a day.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This page is general information, not medical advice. Check with your doctor or pharmacist before starting a supplement, especially if you take medication, are pregnant or nursing, or have a health condition. Updated 2026-10-21.