Have to say Ms Paltrow's shopping basket doesn't look like it'll go for a whole week. Maybe if she eats like an actress it could, but she's got to pretend she's just an ordinary working person. She's been up at 5-6, out on a 7.5-8 hour day with a commute thrown in at either end. She's mentally done in and her feet ache. All she wants is a quick shower, a meal, and a couple of hours to chill out before going to bed ready for the rinse and repeat that is the next day, and the day after that, and the day after that.
I've no doubt her choices are nutritious and all, but they won't be filling. Which means she'll feel hungry pretty much all the time. I'm also not seeing things for drinks, or food for breakfast and lunch as well as evening meals.
All that's fine and dandy if you're going to play at it in a mansion, I guess, but for your average working stiff?
Not. A. Clue.
As for the waste at supermarkets, etc...the problem with giving it away to food banks, etc, would be that pretty soon everyone would be down at the food bank. If you start giving food away, those who are still expected to pay full whack can (with some justification) ask why they're paying relatively high prices, and will eventually come to demand either heavy discounts, or that food is provided free to all (which, to be completely honest, I think it should be...at least for a very basic subsistence diet with no frills. But then I also think that very basic accommodation should be free to prevent homelessness, and more should be done to make sure people are warm enough. You know, the very barest essentials necessary for the preservation of life. Want more? Work for it, earn it, keep it. But at least you'll survive in the meantime).
It is stupid that so much good food has to go to waste, but that's the capitalist/money-based system for you. It could change, and in the long term it has to change. Better that we manage the transition starting now than have it manage us when the resources we need finally run out (or the soil becomes useless for growing in).