Acetyl-L-Carnitine: Energy For the Brain, Exercise Performance, and Fatigue Relief

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Are you looking to enhance your brain health and boost your energy levels? Look no further than Acetyl-L-Carnitine. This powerful compound has gained attention for its potential benefits in supporting cognitive function and promoting energy production. In this article, we will delve into the science behind Acetyl-L-Carnitine, exploring its mechanisms of action and its potential advantages for overall well-being. If you’re wondering where to buy Acetyl-L-Carnitine supplements to incorporate into your daily regimen, we’ve got you covered. Join us as we explore the world of Acetyl-L-Carnitine and guide you to reliable sources for obtaining high-quality supplements. Let’s unlock the potential to take your cognitive function and energy to new heights with Acetyl-L-Carnitine.

What is Acetyl-L-Carnitine?

Acetyl-L-carnitine (ALCAR) is made in the body from the amino acids lysine and methionine. It is a form of L-carnitine that is more easily absorbed by the body and can cross the blood-brain barrier.

ALCAR is involved in the metabolism of fats and has been shown to play a role in energy production, as it helps transport fatty acids into the mitochondria, the “powerhouses” of cells, where they are converted into energy. It also acts as an antioxidant and may have neuroprotective effects.

ALCAR is available in supplement form and is sometimes used as a dietary supplement to support cognitive function, improve athletic performance, and treat certain medical conditions such as nerve pain and depression. However, more research is needed to fully understand the effects of ALCAR supplementation and its potential benefits and risks.

What is the Difference Between L-Carnitine and Acetyl L-Carnitine?

Both L-carnitine and ALCAR are forms of carnitine that play important roles in energy production and metabolism, but ALCAR has some additional benefits for cognitive function and brain health due to its ability to cross the blood-brain barrier.

L-carnitine helps cells burn fatty acids for energy, as it helps transport them into the mitochondria of cells. L-carnitine is available in supplement form and is sometimes used to support athletic performance, weight loss, and cardiovascular health.

ALCAR, on the other hand, is a modified form of L-carnitine that is better able to cross the blood-brain barrier and is thought to have specific benefits for cognitive function and brain health. ALCAR has been shown to improve mental energy and concentration, and may have neuroprotective effects. It is sometimes used as a dietary supplement to support cognitive function and memory, and may also be used to treat certain medical conditions such as nerve pain and depression.

So, the primary difference between L-carnitine and acetyl-L-carnitine (ALCAR) is that ALCAR is a modified form of L-carnitine that has an acetyl group attached to it. The acetyl group makes it more easily absorbed by the body and able to cross the blood-brain barrier.

What Are The Health Benefits of Acetyl L-Carnitine?

Acetyl-L-carnitine (ALCAR) has been studied extensively for its potential health benefits. Here are some of the health benefits that have been supported by scientific research:

  • Cognitive function: ALCAR has been shown to improve cognitive function in older adults and may have benefits for people with cognitive impairment or Alzheimer’s disease. Some studies suggest that ALCAR can improve memory, attention, and mental energy. ALCAR helped improve cognitive function, memory, and mood in various populations, including older adults and individuals with cognitive impairment. [PMID: 17658628]
  • Age-related Fatigue: ALCAR may help reduce age-related decline in physical and cognitive function. Some studies have found that ALCAR can improve muscle strength and reduce fatigue in older adults. [PMID: 17658628]
  • Depression: ALCAR may be effective in reducing symptoms of depression, particularly in older adults. Some studies have found that ALCAR can improve mood and reduce feelings of hopelessness.
  • Nerve pain: ALCAR may be effective in reducing pain associated with nerve damage, such as diabetic neuropathy. Some studies suggest that ALCAR can reduce pain and improve nerve function. In studies, Acetyl-L-carnitine improved pain, nerve regeneration, and vibratory perception in patients with diabetic neuropathy. [PMID: 15616239]
  • Exercise performance: ALCAR may improve athletic performance and reduce fatigue by increasing the use of fat for energy during exercise. Some studies have found that ALCAR can improve endurance and reduce muscle damage during exercise.

Is Acetyl L-Carnitine Safe?

Acetyl-L-Carnitine (ALCAR) is safe for most people when taken in appropriate doses. ALCAR is a naturally occurring compound that is synthesized in the body. It is generally well-tolerated and has a low risk of side effects. But, as with any supplement, there is always the potential for adverse effects. Some people may experience mild side effects such as gastrointestinal discomfort, nausea, or headaches. In rare cases, high doses of ALCAR may cause more serious side effects, such as agitation, insomnia, or seizures.

Are there Food Sources of Acetyl L-Carnitine?

Carnitine, a building block of Acetyl L-Carnitine is also found in certain foods, such as red meat and dairy products. Carnitine is an amino acid that is present in various forms in food, however, the majority of carnitine found in meat is not in the form of Actyl L-Carnitine. When we consume meat, our body breaks down the carnitine in the food into its basic components, including ALCAR and other forms of carnitine. ALCAR is one of the forms of carnitine that our body produces, but it is not the only form.

FoodCarnitine Content per 3 oz
Beef Steak95-140 mg
Ground Beef43-56 mg
Pork24-35 mg
Chicken Breast3-7 mg
Whole Milk (1 cup)8 mg
Estimated Carnitine per serving.

What Medications Interact with Acetyl L-Carnitine?

Acetyl-L-carnitine (ALCAR) may interact with certain medications, so it’s important to talk to a healthcare professional before taking ALCAR if you are taking any medications or have any underlying medical conditions. Here are some medications that may interact with ALCAR:

  • Anticoagulants: ALCAR may increase the risk of bleeding when taken with anticoagulant medications, such as warfarin (Coumadin) or heparin.
  • Thyroid hormones: ALCAR may interfere with the absorption of thyroid hormone replacements, such as levothyroxine (Synthroid), so it’s important to take these medications at least 4 hours apart from ALCAR.
  • Chemotherapy drugs: ALCAR may interfere with the effectiveness of certain chemotherapy drugs, so it’s important to talk to a healthcare professional before taking ALCAR if you are undergoing chemotherapy.
  • Anticonvulsants: ALCAR may interact with anticonvulsant medications, such as phenytoin (Dilantin) or valproic acid (Depakene), and may increase the risk of seizures.
  • Psychiatric medications: ALCAR may interact with certain psychiatric medications, such as tricyclic antidepressants or selective serotonin reuptake inhibitors (SSRIs), and may increase the risk of serotonin syndrome. Some commonly prescribed tricyclic antidepressants include Amitriptyline (Elavil), Nortriptyline (Pamelor), Imipramine (Tofranil), Desipramine (Norpramin), Doxepin (Sinequan), and Clomipramine (Anafranil).Some of the commonly prescribed SSRIs include Fluoxetine (Prozac), Sertraline (Zoloft), Paroxetine (Paxil), Fluvoxamine (Luvox), Citalopram (Celexa), and Escitalopram (Lexapro).

What Supplements Interact with Acetyl L-Carnitine?

Here are some supplements that may interact with ALCAR:

  • Creatine: ALCAR may enhance the absorption and uptake of creatine, so taking ALCAR with creatine may increase the effects of creatine.
  • BCAAs: ALCAR may interact with branched-chain amino acids (BCAAs), which are often taken as supplements by athletes. In people using high doses of these supplements, dehydration may occur and this will increase the risk of seizures in susceptible individuals.
  • Choline: ALCAR may enhance the uptake and utilization of choline in the brain, so taking ALCAR with choline may increase the effects of choline.
  • Alpha-lipoic acid: ALCAR and alpha-lipoic acid are often taken together as supplements for their antioxidant and neuroprotective effects. However, taking high doses of both supplements may increase the risk of adverse effects, such as gastrointestinal discomfort or headaches.
  • Vitamin C: ALCAR may enhance the antioxidant effects of vitamin C, so taking ALCAR with vitamin C may increase the effects of vitamin C.

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Acetyl-L Carnitine 500mg by Now Foods

Acetyl-L-Carnitine (ALC) is a modified amino acid that supports cellular energy production by assisting in the transport of fat into the mitochondria where it is converted into ATP (cellular fuel).* ALC is a highly bioavailable form of carnitine that can cross the blood-brain barrier, where it helps to neutralize free radicals, supports mitochondrial function and helps to maintain normal neurotransmitter activity.* Clinical studies suggest that ALC helps to maintain optimal neurological health.*

Suggested Use:

Take 1-2 capsules 1 to 2 times daily as needed.

Amount Per 2 Capsule Serving:

Acetyl-L-Carnitine … 1 g (1,000 mg)

   (from Acetyl-L-Carnitine HCl)

Other Ingredients:  Hypromellose (cellulose capsule), Rice Flour, Stearic Acid (vegetable source) and Silicon Dioxide.


In conclusion, Acetyl-L-Carnitine offers promising potential in supporting brain health and energy production. Its unique properties make it a valuable supplement for those seeking cognitive enhancement and increased vitality. When considering where to buy Acetyl-L-Carnitine supplements, it is important to choose reputable sources that offer high-quality products. Reliable online retailers, health stores, and pharmacies are great options to explore. By incorporating Acetyl-L-Carnitine into your routine from trusted sources, you can optimize your cognitive function and energy levels. Take the next step towards enhancing your well-being by exploring the benefits of Acetyl-L-Carnitine and finding the right supplements to support your goals.

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