In addition to L-carnitine, the product also contains tea leaf extract with polyphenols (including EGCG). A review by the United States Pharmacopeia (USP) highlighted cases of hepatotoxicity associated with high daily doses of EGCG from green tea extracts (USP, 2020), which is why the manufacturer correctly states an upper limit of 800 mg EGCG per day on the label and warns against combining it with other green tea products, to avoid unintentionally exceeding this limit. This is an example of responsible labeling that is worth following, especially if you are already taking other products containing green tea extract.

A dose of 3000 mg per day falls within (and at the upper end of) the 1.8-4 g/day range used in most clinical studies on carnitine's effect on body weight, but even at these doses the effect remains clinically modest - a meta-analysis showed approximately 1.3 kg of additional weight loss compared to placebo over 30-360 days (Pooyandjoo et al., 2016). A higher dose therefore does not mean a proportionally greater effect, but simply that the product reaches the threshold at which effects were actually measured. Weight loss always depends primarily on overall energy balance.

In the ingredient information available to us, the tea extract is listed in one place as 'black tea leaf extract' and in another as 'green tea leaf extract camellia sinensis'. This is an inconsistency in the original ingredient description, which we recommend verifying directly on the physical packaging of the product before purchase, as it can affect the exact polyphenol and EGCG profile. For final confirmation, we recommend checking the current label on the packaging or contacting the seller before purchasing.

No, the manufacturer explicitly states that the product should not be consumed by pregnant women or breastfeeding mothers, nor by persons under 18 years of age - this warning should be followed in full, regardless of dose size. The reason is the combination of a high dose of L-carnitine and tea extract with EGCG, the safety of which has not been adequately studied during pregnancy. If you are pregnant or breastfeeding and considering any dietary supplement, always consult a doctor or gynecologist before use.