I probably have too much salt in my diet already, so I'm not sure how much I'd want to add by tablets or other sources. I notice the salt deposits on the helmet straps, but this is normal. I'm drenched with sweat after every ride, but I expect it in the lower to mid 90's. Plenty of fluids.
It does however create some problems on the bike. I have some pitting of the metal on the chainrings and brake levers. I've had to replace the brake cables with stainless steel cables to avoid further corrosion. Also had the spacers fuse to the steerer, which caused indexing. The bike shop solved that problem for me.