Seasoned salt is a blend of table salt, herbs, spices, other flavourings, and sometimes monosodium glutamate (MSG). It is sold in supermarkets and is commonly used in fish and chip shops and other take-away food shops. Seasoned salt is often the standard seasoning on foods such as chicken, French fries, deep-fried seafood, and potatoes.
The seasoned salt industry in the United States sells $100 million USD in seasoned salt annually. According to the US Federal Trade Commission two brands make up 80% of that market. 
Season-All is the #2 Seasoned salt in the US by marketshare. 
The combined marketshare of Lawry's seasoned salt and Season-all was of sufficient concern that the FTC required McCormick, the former owner of the Season-all brand, to sell (divest) the Season-all brand to Morton as a condition of McCormick purchasing Lawry's seasonings in 2008. 
Invented in the 1970s in the English city of Hull and claimed to have been inspired by American seasonings,  "chip spice" was introduced into the United Kingdom in the 1970s in Kingston upon Hull by the Spice Blender company; the recipe was based on American spiced salts containing paprika.
Chicken salt was originally developed in the 1970s to season chicken for rotisseries.
The first recipe for chicken salt consisted of onion powder, garlic powder, celery salt, paprika, chicken bouillon and monosodium glutamate with some curry powder. Chicken salt is not related to the chicken flavouring or seasoning found on potato crisps, although it can be similar in appearance (both have a slight yellow colouring). There are versions of chicken salt that use chicken flavoring as well as vegan versions. 
Ingredients vary by recipe or manufacturer. Common herbs and spices may include:
Also, for an umami taste:
- "Seasoned Salt". iFoodTV. Archived from the original on 29 October 2013. Retrieved 30 December 2011.
- Campbell, Regina (2003). Regina's International Vegetarian Favorites. p. 153.
- Brown, Deborah (19 February 2009). "A grain of chicken salt is too much". Sydney Morning Herald.
- "One Hull Of A Story: The History Of Chip Spice", www.weirdretro.org.uk, retrieved 24 March 2017
- Liaw, Adam (10 April 2018). "Chicken salt: we find the creator of an Australian classic – and he tells us everything". the Guardian. Retrieved 10 April 2018.