What is the difference between acetyl-L-carnitine and regular L-carnitine, and why would I choose this form?

Acetyl-L-carnitine adds an acetyl group that changes how the molecule functions, making it relevant for both physical energy and mental performance.

How should I take these capsules for training, mental focus, or a calorie-controlled diet?

Take 1–2 capsules daily with water, preferably with a meal; timing can align with your main activity — before training or at the start of a mentally demanding day.

Can I combine this with other supplements or medications, and what precautions apply?

Generally compatible with most sports and wellness stacks, but consult a healthcare professional if you take prescription medication, have a chronic condition, or are pregnant or breastfeeding.

FITS

FITS Acetyl-L-carnitine 500mg capsules 60 pcs

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L-carnitine has recently gained popularity as a modern weight loss supplement.

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SKU:: V00000001504
EAN:: 4004986030460

Key component L-carnitine
Dosage form In capsules
Goal Energy & vitality, Weight management

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Product Overview

FITS Acetyl‑L‑Carnitine 500 mg capsules is a food supplement containing acetyl‑L‑carnitine, a form of carnitine that is valued for its role in energy metabolism. Carnitine is naturally present in the body, especially in muscle tissue, where it helps move fatty acids into the mitochondria – the parts of the cell that turn nutrients into usable energy.

Carnitine has been known in nutrition science for a long time, and its name comes from the Latin word for meat, since it was first identified in animal tissue. The body can make some carnitine on its own, but intake and individual needs vary depending on diet, activity level, and overall nutritional status.

Key Components

Acetyl‑L‑Carnitine – a carnitine derivative that combines carnitine with an acetyl group, influencing how the molecule behaves in the body.

How It Works

The acetyl form is especially interesting because it combines carnitine with an acetyl group. This changes how the molecule behaves in the body and is the reason acetyl‑L‑carnitine is often discussed not only in connection with exercise, but also with focus and mental performance. In plain language, it helps the body handle fat transport efficiently while also taking part in cellular energy processes that matter for both muscles and the nervous system. This does not make it a stimulant, but rather a nutrient involved in how energy is produced at the cell level.

When People Choose It

During physically active periods
During mentally demanding weeks
When following calorie‑controlled nutrition plans

Target Audience

People who train regularly
Those seeking a more structured approach to weight‑management efforts
Individuals who feel mentally drained by intense schedules
Those preferring targeted sports nutrition or amino‑acid supplements over broad multivitamin formulas

Usage and Form

The capsule form is practical for people who want a precise amount without the taste of powders or liquids.

Safety and Precautions

If you are pregnant, breastfeeding, taking medication, or have a long‑term medical condition, check with a healthcare professional before use.
If you are sensitive to stimulating products, start attentively and observe how this acetyl‑L‑carnitine formula fits into your regimen.

Specifications

Brand	FITS
Dosage form	In capsules

Delivery - terms and prices

After placing an order, delivery is processed on business days. Package design and product images may differ. Delivery time depends on the selected method - on average up to 5 days.

Estonia

Pick-up at Vitateka store (T1, Peterburi tee 2)Free
Parcel locker Itella Smartpost2.28 €
Parcel locker Omniva3.05 €
Parcel locker DPD2.34 €

Free to a parcel locker for orders from 30 €

Packeta (selected countries)

Poland - home delivery (courier)5.00 € / 21 PLN
Slovakia - pick-up point (PUDO)3.80 €
Slovakia - courier5.87 €
Czech Republic - pick-up point (PUDO)3.93 €
Czech Republic - courier6.10 €
Hungary - pick-up point (PUDO)4.13 €
Romania - pick-up point (PUDO)3.61 €

Latvia

Parcel locker Itella Smartpost3.96 €
Parcel locker Omniva4.90 €
Parcel locker DPD4.13 €

Free to a parcel locker for orders from 35 €

Lithuania

Parcel locker Itella Smartpost3.96 €
Parcel locker Omniva4.95 €
Parcel locker DPD5.11 €

Free for orders from 40 €

Finland

Posti pick-up point6.90 €

Free for orders from 75 €

Other EU countries

International Omniva post - from 7 € (price depends on parcel weight). For other options (DPD, FedEx), standard rates and transit times apply.

Free delivery - on request

In addition to the thresholds listed above, we can consider free delivery options depending on the order amount and for deliveries to other countries. Contact us and we will suggest the best option.

Contact

Email: [email protected]
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Delivery time

On average - up to 5 business days (depends on the selected delivery method).

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Customer Questions

Acetyl-L-carnitine is a derivative of L-carnitine where an acetyl group is attached to the molecule. This structural difference affects how it behaves in the body. Regular L-carnitine's primary, well-established role is transporting long-chain fatty acids into the mitochondria so they can be burned for energy — a process essential for muscle function during exercise. The acetyl form retains this transport function but the acetyl group also allows it to participate in other cellular processes, including the synthesis of acetylcholine, a neurotransmitter involved in focus, memory, and nerve signaling. This is why acetyl-L-carnitine is often discussed in the context of both physical training and periods of high mental demand, whereas plain L-carnitine is typically marketed almost exclusively for sports performance and fat metabolism. Neither form is a stimulant; they are nutrients that support the body's own energy-producing machinery. If your goal is strictly exercise-related fat transport, either form can work. If you also want a supplement that fits into a routine for cognitively demanding weeks, the acetyl form is the more versatile choice.

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The label provides 500 mg per capsule and a 60-capsule bottle. A common supplemental range for acetyl-L-carnitine in clinical nutrition literature is 500–2000 mg per day, so one to two capsules daily falls within typical use. Because the ingredient supports mitochondrial fat transport and cellular energy processes, many users take it with the first substantial meal of the day to ensure consistent blood levels. If you train in the morning, taking a capsule 30–60 minutes before the session with a light carbohydrate source can align the nutrient's availability with the workout. For mentally demanding periods, a morning dose with breakfast helps cover the workday. During a calorie-controlled plan, splitting the dose — one capsule at breakfast, one at lunch — may help maintain steady levels while food intake is lower. The capsule format avoids the strong taste of powders and allows precise dosing without measuring. There is no need to cycle on and off unless you personally prefer to; the ingredient is a normal metabolic intermediate, not a drug. As with any supplement, it works best alongside adequate protein, hydration, sleep, and an overall balanced diet — it is not a substitute for any of those.

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Acetyl-L-carnitine is a naturally occurring compound in human metabolism and is widely used alongside protein powders, creatine, electrolytes, B-vitamins, omega-3s, and caffeine-containing pre-workouts without known adverse interactions. Because it is not a stimulant, it does not add to the jittery effects of caffeine or other central nervous system activators. However, the acetyl group means it can influence acetylcholine pathways, so if you take medications that affect cholinergic transmission (for example, certain Alzheimer's drugs, anticholinergics, or some neuromuscular blockers), discuss timing and dosage with your prescribing doctor. People on thyroid medication, anticoagulants, or antidiabetic drugs should also check with a professional, as carnitine can theoretically interact with thyroid hormone action, blood clotting parameters, or glucose metabolism in sensitive individuals. The product information advises caution if you are sensitive to stimulating products — start with one capsule and observe how you feel before increasing. Pregnant or breastfeeding women and anyone with a diagnosed long-term medical condition should seek medical advice before adding any new supplement. Store the bottle in a cool, dry place with the lid tightly closed; the capsules are stable at room temperature but degrade faster with heat and humidity.

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FITS Acetyl-L-carnitine 500mg capsules 60 pcs

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