Natural products can be deceiving. It is true that natural vitamins extracted from plants, such as those contained in acerola-based vitamin C, may be more compatible with human physiology than synthetic forms. This is because natural vitamins are often found in combination with other compounds present in the original matrix, such as cofactors, minerals and polyphenols. This combination of compounds can promote the synergy of the active ingredients present in the extract, improving bioavailability and the expected physiological effects.
Regarding the randomized clinical trial you mentioned, it is important to note that I cannot provide specific information about a specific study without having access to full details and official sources. However, in general, clinical studies are an important tool for evaluating the efficacy and bioavailability of a food supplement or nutritional substance. Measuring plasma vitamin C levels after taking ascorbic acid or a vitamin C-fortified lemon extract can provide information on the bioavailability of these compounds.
I remember that before taking any food supplement it is always advisable to consult a doctor or nutritionist to obtain a personalized assessment of your needs and health conditions.