The Lucozade having better health regeneration is a good idea to be fair.
You could go with things like hot chocolates and stuff too
For instance a Hot Chocolate from somewhere like Bean Machine - a pro would be due to the thickness of it and the filling nature it would keep your thirst full for longer however, when you run you'd get bloated and slow down for a lot longer than normal.
Loaded Fries, would take a decent amount of time to make due to frying onions or whatever but they'd fill you up a bit more than a single taco & if partnered with the wrong food to top up the food bar then it'd have a sickly feeling where your movement is slowed down and you walk around like you're about to shit yourself for 5 minutes.
Maybe if this could be a thing you could become addicted to certain things, maybe Taco shops, Coffee shops and any other shop for that matter could put weekly orders in with the government/other people for fizzy drinks then other civillians with the correct licenses travel around and make them after accepting a delivery job, (x) company orders them in & the order goes to a delivery hub, the driver who accepts it then has to drive to Sandy to collect a batch of the syrups to make it, then they'd need to drive to Paleto Bay to take it to be carbonated and then added into the can & sealed then they'd need to drive into the city or wherever the order is to deliver it to the business that has ordered it.
The drinks would be things like Dr. Pepper, Fanta, Coke etc obviously call them something different. However each drink would have positives and negatives to drinking that individual drink, Dr Pepper for instance would give a very mild health gain from drinking one somewhere along the lines of 15% of the bar. If you're being chased you'd have to stop to open the menu to drink it but it'd give a small 15% health boost along with a small stamina/speed boost, but you can become dependant on the sugar if abused and throughout prolonged periods of running you'd have to stop to drink one or you'd pass out for 2/3 seconds.
Coke Cola could give you more of a boost to run speed/health regen but it could be more prone to having a bad batch due to the carbonation process, too much Carbon Dioxide has gotten into the can and in return has given you a bad stomach and you now need to be sick, being sick would slump you over & remove 35% of your current food bar & 50% of your thirst bar.
Obviously this has been thrown together and would take a lot of work but in the long run I think it would be fun to bring this kind of dynamic to abusing certain foods & drinks, in game ive used nothing but Smoothies & Taco's for so long that my character must be a right fat shit but it's having no prolonged effects on my health. Having to switch up what you eat and drink to me would be quite fun and very different to how things are now, there is a lot of food for thought within this & i'd like to see where people go with my suggestion.