[oxplot]

100% agreed re McDonalds. Not only that, its healthiness is easy to verify since all the ingredients and nutrition data is available. Good luck finding out how much saturated fat is in the dish at that posh restaurant everyone queues up for!

[Ntrails]

So, I can go to a nice place and get some freshly made mayonnaise with my crab cakes. It's tasty as f, and is clearly unhealthy. If it's made with bad ingredients or bad hygiene there is a risk of food poisoning - raw eggs and all that. Each chef makes the mayonnaise with slightly different seasoning and those tablespoon/ half a lemon etc measures vary a bit from batch to batch.

Alternatively I can have a cheeseburger at Maccy Ds. I am confident that there's no real risk of food poisoning from the faux mayonnaise in the filling. The McMayo makeup is accurately detailed to within % points. It's jammed full of various preservatives, and indeed it can probably be stored for years without risk.

McMayo is safer, has detailed nutritional info, and is perfectly consistent.

Personally - I'll have the fresh mayonnaise every time, and strangely not knowing the amount of saturated fats doesn't trouble me in the slightest. To each their own.