@Dailyhandtowelwash I used to think that some recipes, especially ones with tomatoes in them, needed a bit of sugar, or balsamic vinegar in them because "the sweetness brought out the flavour of the tomato". Now I just find them over-sweet, and think it's best to buy some better quality, better flavoured tomatoes in the first place 
I guess the sweetness is for that balanced 'umami' feel - sweet, sour, salt, bitter... but I think (for me) that as I've eaten less sugar my sensitivity to the amount of sugar has grown, so I either get the 'sweetness' from the veg, or the wine in the cooking, and that seems enough. It's similar to my tolerance for spice and heat, which has increased massively over the 10 years that dh has been growing ferocious hot chillies! Essentially, I don't think 'umami' is a specific formula, but rather an adaptation to our own tastes and tolerances.
Also when I've spent time in Asian cultures I've noticed that rural populations don't use coconut sugar or palm sugar in their recipes as much. Maybe what we're being 'fed' (in some cases) is the equivalent of us selling other cultures a cheeseburger and fries - which is a million miles away from our original natural cuisine.
Methinks Tom Kerridge has simultaneously increased his bank balance AND his waistline!! And I seem to recall I wrote a poem about him on a previous thread... although a visit to his restaurant a few years ago was amazing
Food today:
B - coffee with cream
L - cheese, ham and cucumber 'sandwich' (just buttered slices of cheese)
D - another dine in at home extravaganza: smoked trout with shaved fennel and tomato consomme; scallop with miso dressing and spring onion salad; ribeye beef with mushroom puree truffle cauliflower cheese and beef jus.
There's also desert but dh will have half tonight and half tomorrow.