CBD isn't a 'supplement' despite commonly being called one. The reason for this is that cannabidiol (i.e. ‘CBD’) as a cannabinoid isn’t a ‘dietary’ compound. It’s different from multivitamins, protein powders, herbal remedies or electrolyte drinks. Each of these is classified as a dietary supplement because they have at least one dietary nutrient. For example, whey protein powder contains amino acids targeted at muscle recovery. CBD isn’t a nutritional aid like this. However, it is used similarly to traditional supplements as part of 'daily protocols'.