You will not get scurvy if you take ANY acid, because the principle of action for all acids is the same: exchange of hydrogen for metal. The main thing is not to exceed the concentration (so that your cells do not decide that they have eaten you, and it is time to self-destruct), and avoid acids that form insoluble salts (oxalic, uric). Ascorbic acid is so named for a completely stupid reason: it was simply found first, because it is more common. And that's all. The products contain citric, tartaric, acetic, malic acids. The organism of BIOTROPHES (animals) is designed for the use of complex substances from living organisms. Therefore, I would not deceive nature, and would take natural. Some drink vinegar and are less likely to get sick, while others become stained. This is not normal and therefore unpredictable. But scurvy will help. Consumption of acid will meet with a slight backlash from the buffer systems. It would be nice to remove the feedback or deplete the buffer systems. The most significant question is how to convince the hypothalamus to change its opinion about the normal level of blood acidity (in the acidic direction)? The simplest thing is to add more acids and like acidic foods, and it works.
The simple answer is no. Even if you do not take synthetic ascrbic acid, you will not get sick, since you will be eating other foods that contain vitamin C. If you do, you will simply maintain immunity. You can get sick only when traveling on the seas and oceans in the absence of normal food and during the war years.
Let's compare the exact formulas of a substance called vitamin C, that is, ascorbic acid (a-scorbic acid, against scurvy, or scurvy, which is the same, or an anti-scurvy vitamin) found in a natural source - for example, any representative of the citrus genus , - and synthesized at a pharmaceutical company.
1. Natural Vitamin C: