There has a great difference in the answer if we consider the question under views of chemistry or nutritional science. So, lemon is acidic or alkaline? It commonly believes that lemon is acidic because it's sour in taste. However, in the view of nutritional science, lemon is an alkaline food. Why? The answer is simple as when we take in the food, it will become alkaline. That's why we classify it as an alkaline food. …showed first 75 words of 320 total…

…showed last 75 words of 320 total…In contract, if it contains more sulphur, phosphate or chloride, it forms an acid food. So, what is the answer to the question? From the action of turning red in the experiment when we put lemon juice on blue litmus paper, we know that lemon juice is indeed acidic. With different point of view, we may have different result to determine whether the chemical is acidic or alkaline. So, please take care of it. ;-)