I come to London in 15 days and I want to buy this kind of products because we don't find them in Paris. So, do you have some good address to let me, please ? Thanks a lot !
Why not just cook a meal yourself ffs?
For a healthy diet, you need to be eating small to medium meals regularly. 4 or even 5 times a day. Each meal (apart from breakfast which should preferably be fibre rich), should contain a balanced ammount of carbohydrates for energy, (from potatoes, rice and pasta, etc) protien (from fish, chicken, occassional red meat is fine, soya is good too) and plenty of vitamins, minerals and antioxidants (simple fresh fruit and veg). Eat like this and make sure you are well hydrated (fruit juice is as good as water, any fluid counts, but some fluids have negative effects too, such as alcohol or caffiene rich drinks.)
Now for the science bit: Protien is essential for repairing muscle and keeping the muscle you do have healthy (this includes your heart, lungs, brain etc). You naturally lose the ammount of protien you have throughout the day (through urine etc) so this needs to be replenished regularly on a daily basis.
Carbohydrates are essential for energy. You won't be able to function without it. It also regulates body fat and glucose etc.
Vitamins and minerals are obviously essential for a variety of reasons. For normal growth and development, for the healthy maintenance of the cells, tissues, and organs that make up our bodies, and also to let us efficiently use chemical energy provided by food.
You can have a wide range of healthy meals with this, from Thai, Chinese, Italian, British, Indian, etc. Just make sure each meal contains balanced ammounts of these three. On the bright side too, fresh veg and rice and pasta is a lot cheaper than crappy junk food!
This doesn't mean you cant have chocolate or pizza/takeaway/etc, just save them as very occassional treats.