Carnitine is a naturally occurring compound made by the body from the amino acids lysine and methionine. It plays an important part in transporting long-chain fatty acids into the mitochondria—the structures within cells where nutrients can be used to produce energy.
This natural function does not mean that taking a carnitine supplement automatically burns body fat, causes weight loss or produces an immediate energy boost. Diet, physical activity, sleep and overall health remain important.
What is Nutrition A2Z Metabolic Drive?
Nutrition A2Z Metabolic Drive is a multi-ingredient food supplement combining two forms of carnitine with green tea extract, Vitamin B6, Vitamin B12 and black pepper extract.
Each three-capsule serving provides:
- 900 mg of L-Carnitine L-Tartrate
- 300 mg of Acetyl L-Carnitine
- 150 mg of green tea extract
- 142.5 mg of polyphenols
- 67.5 mg of EGCG
- 3 mg of Vitamin B6
- 100 µg of Vitamin B12
- 5 mg of black pepper extract, standardised to 95% Piperine
These ingredients have different nutritional roles, which is why it is important to consider the complete formula rather than viewing Metabolic Drive as an ordinary single-ingredient carnitine supplement.
What is L-Carnitine L-Tartrate?
L-Carnitine L-Tartrate combines L-carnitine with tartaric acid. It is commonly used in sports-nutrition supplements and has been studied in connection with exercise, training recovery and markers of muscle damage.
Research results are mixed. Some studies suggest that L-carnitine supplementation may help certain aspects of recovery following demanding exercise, but the outcome can depend on the dose, duration of use, type of training and characteristics of the individual.
It should not be assumed that a single serving will immediately increase strength, endurance or athletic performance.
What is Acetyl L-Carnitine?
Acetyl L-Carnitine, often shortened to ALCAR, is an acetylated form of carnitine. It can cross the blood–brain barrier more readily than some other forms, which is one reason it has attracted scientific interest in relation to the nervous system and cognitive health.
However, evidence does not establish ALCAR as a general-purpose concentration or memory enhancer for healthy adults. Metabolic Drive should not be presented as treating tiredness, depression, memory loss or any neurological condition.
Its inclusion creates a broader dual-form carnitine formula, but it does not turn the product into a medicine.
Why combine two forms of carnitine?
L-Carnitine L-Tartrate is commonly used in exercise-focused formulas, while Acetyl L-Carnitine has been researched for somewhat different applications. Combining them provides carnitine in two distinct forms.
A three-capsule serving supplies a total of 1,200 mg from these two carnitine ingredients. This does not mean that the two forms have been proven to work better together, and customers should not assume that a larger amount will necessarily produce a greater benefit.
Does carnitine burn fat?
Carnitine participates in the normal transport of fatty acids within the body, but this biological role is frequently oversimplified in supplement advertising.
Taking carnitine does not automatically make the body burn more stored fat, and it is not a substitute for an appropriate calorie intake, regular activity and sustainable lifestyle habits. Research into carnitine supplementation for body composition and weight management has produced variable results.
Metabolic Drive should therefore be regarded as a food supplement—not a fat-burning treatment or a guaranteed weight-loss product.
Why does the formula contain green tea extract?
Green tea extract is produced from the leaves of Camellia sinensis. It supplies naturally occurring plant compounds called polyphenols, including epigallocatechin gallate, commonly known as EGCG.
Each three-capsule serving provides 150 mg of green tea extract, including 142.5 mg of polyphenols and 67.5 mg of EGCG. At the maximum label intake of two servings, this would provide 135 mg of EGCG per day.
The label does not state that the green tea extract is decaffeinated or provide a caffeine quantity. Metabolic Drive should therefore not be described as caffeine-free or stimulant-free. People who are sensitive to caffeine may prefer to take it earlier in the day.
Avoid combining it with several other concentrated green tea or EGCG supplements. Anyone with a liver condition, or who develops symptoms such as unusual fatigue, abdominal discomfort, dark urine or yellowing of the skin or eyes, should stop taking the product and seek medical advice.
What does Vitamin B6 contribute?
Metabolic Drive contains Vitamin B6 in the form of Pyridoxal-5-Phosphate, also known as P5P.
Vitamin B6 contributes to:
- Normal energy-yielding metabolism
- The reduction of tiredness and fatigue
- Normal functioning of the nervous system
- Normal psychological function
- Normal protein and glycogen metabolism
- Normal regulation of hormonal activity
- Normal functioning of the immune system
These are normal nutritional functions. Vitamin B6 does not act like a stimulant and should not be described as creating an instant surge of energy.
What does Vitamin B12 contribute?
The formula contains Vitamin B12 as methylcobalamin. Vitamin B12 contributes to normal energy-yielding metabolism, normal functioning of the nervous system, normal psychological function and the reduction of tiredness and fatigue.
A three-capsule serving provides 100 µg of Vitamin B12, equivalent to 4,000% of its Nutrient Reference Value. The NRV is a reference amount used for food labelling; supplying a high percentage does not mean that the product will provide proportionately greater benefits.
Why is black pepper extract included?
Each serving contains 5 mg of black pepper extract standardised to 95% Piperine. Piperine is a naturally occurring compound found in black pepper and is often included in multi-ingredient supplements.
Piperine can affect the activity of enzymes and transport proteins involved in processing certain substances. This also means that it may alter the absorption or metabolism of some medicines.
Anyone taking prescription or non-prescription medication should consult a doctor or pharmacist before using this product rather than assuming that black pepper extract is harmless in every situation.
Who may use Metabolic Drive?
Metabolic Drive is intended for adults aged 18 and over who want to supplement their diet with its combination of carnitine, green tea extract and vitamins.
Responses to supplements vary. Factors such as diet, training, sleep, health, medication and existing nutrient intake can all influence whether someone notices a benefit.
It should complement—not replace—a balanced diet, sufficient sleep, appropriate exercise and realistic health or fitness goals.
How much should you take?
The product label directs adults to take three capsules once or twice per day.
One three-capsule serving provides the amounts listed above. Taking the maximum label intake of six capsules provides:
- 1,800 mg of L-Carnitine L-Tartrate
- 600 mg of Acetyl L-Carnitine
- 300 mg of green tea extract
- 285 mg of polyphenols
- 135 mg of EGCG
- 6 mg of Vitamin B6
- 200 µg of Vitamin B12
- 10 mg of black pepper extract
Do not exceed six capsules in one day. Taking more than the recommended amount does not guarantee better or faster results.
When should you take it?
There is no firmly established best time of day for everyone to take this combination.
Someone taking one serving may choose to take three capsules earlier in the day. When taking two servings, the six capsules can be divided into two separate three-capsule servings.
Because the product contains green tea extract and its caffeine content is not declared, caffeine-sensitive individuals may wish to avoid taking it near bedtime. Taking the capsules with food may also be more comfortable for some people.
Consistency and following the product directions are more important than trying to identify a perfect time.
Important safety information
Do not use Metabolic Drive if you are under 18, pregnant or breastfeeding. Keep it out of the reach of children and do not exceed the recommended intake.
Ask a doctor or pharmacist before use if you:
- Take prescription or non-prescription medication
- Have a diagnosed medical condition
- Have liver, kidney, thyroid, cardiovascular or neurological concerns
- Are receiving medical treatment
- Use other supplements containing green tea extract, EGCG, carnitine, Vitamin B6, Vitamin B12 or Piperine
- Are due to have surgery
Food supplements should not replace a varied, balanced diet and healthy lifestyle. Stop using the product and seek professional advice if you experience an unexpected or persistent adverse reaction.