Health supplements are now a common addition to our diet and in many ways, they are the only solution to our health problems. However the Internet is simply flooded by SPAM and pop-up advertisements promising a quick relief from various illnesses. On the other hand, the benefits and dangers of using them are more and more discussed among physicians. The use of various supplements in bodybuilding process and the dangers of abusing them do not help.
The point is that health supplement really do work, but not for everybody and certainly don't cure every abnormality.
Nutritional deficiencies-Basically dietary health supplements were originally developed to help people
overcome their nutritional shortages. If, for any reason, an individual is unable to follow a balanced diet, health supplements help them to keep your body intact. However in most cases when an individual eats healthy food (a lot of fresh fruit and vegetables. For example), health supplements are no longer needed and taking them will have only little effect bad or good.
Bodybuilding/fitness-Another common reason of taking health supplements is bodybuilding. When we want more than to be fit, the normal diet is not enough and we need to take something more serious if we hope to keep up the unhealthily quick pace of the muscles grow. 
That's where the health supplements come. However as they are often taken without any medical knowledge (and they need to be taken in large quantities if they are to have a visible effect), their final effects may no longer be positive.
In short, health supplements are OK, but only as long as people use them for the reasons they were made for - to fight nutritional deficiencies. Bodybuilding or the general need of feeling healthy are not good reasons for taking those pills (even herbal ones). Our body is a delicate mechanism and we shouldn't mess with it too much unless there is a serious reason.
Image sources: https://www.femina.in/wellness/fitness/expert-speak-know-how-to-be-mindful-while-choosing-health-supplements-183389.html
https://www.sapnamed.com/blog/best-supplements-for-a-healthy-spine/
https://top10supps.com/best-strength-supplements/