low cal protein shake for women?

There's a few protein shakes that advertise directly to woman, but that's BS.
Whey protein is whey protein.
I gave my sister some protein powder recently, and she's just taking the same as me, albeit at half the quantity.

There's going to be calories involved however you look at it... But they are good calories
I usually take mine with a 50/50 mix of water and milk, and i don't mind the extra cal's i get from the milk.

I currently buy from MyProtein, but used to buy a lot of maximuscle. I think the Optimum Nutrition Gold Standard Whey is pretty popular in the States.

Some people take them as meal replacements, but i usually incorporate them into my breakfast (after working out) and have one by itself before bed.

Protein has calories same as fat and carbs, so if it's low cal it will be low protein which is rather pointless. Women don't need a special product that is marketing just get a basic whey isolate with no added sugars and moderate your serving. Protein powders are a supplement, a convenience product good for use when you cannot get a meal or snack or for adding to smoothies. They won't help you 'tone' up or lose bodyfat, intense exercise plus a balanced nutritious diet achieves that.

Looking at your diary you are not eating the recommended amount of fat or protein nor a balance of all the food groups, you are eating way more than maximum 10% of daily calories as sugary/ processed/ refined rubbish. I don't see seven to nine servings of fruit and veg, three servings of reduced fat dairy a day, oily fish regularly, fibre and mineral rich foods just white carbs. Forget the protein powder, work on simple healthy eating.

I have just started to use Maxitone definity. I mix it with water at 120 cals or if I have a major workout I make it with skimmed milk and throw in some fruit and have it as a smoothie - which does mean more cals but I dont worry to much about that.

I do strength training and martial arts and started taking casien before I went to bed after the martial arts sessions. It is a slower absorbing protein and by the time I wake up in the morning I don't feel quite as "beat up". My bladder also produces more that would seem physically possible in the morning but I am told that is the byproduct of th the protein working.
Agree with what everyone else said about the whey protien directly before/after working out. I usually have my exercise calories in the form of protien beverage of some sort (shake/smoothie/water mix).