There are also some products using substandard ingredients, and some which are ineffective due to the influence of other ingredients. Taking garlic oil as an example, even though garlic does contain active ingredients which are effective in lowering cholesterol and preventing cardiovascular disease, it can easily lose its effectiveness due to oxidation caused by prolonged exposure to air or high temperatures during the extraction process. So just how effective is a garlic extract capsule?
以大蒜精為例，大蒜中的有效活性成分雖能降低膽固醇、預防心血管疾病，但卻很容易在空氣中產生氧化，或是受高溫影響而失去作用，因此往往在萃煉過程中遭到破壞，所以消費者吞下肚裡的大蒜精膠囊到底有沒有成效？