By Emma Wall Published: 5:15PM GMT 15 Jan 2010  This week we're running through healthy eating bargains from restaurants that are diet friendly, supermarket meals and healthy sale items to include in your weekly shop.  Japanese cuisine is renowned for being high in vitamins and minerals and low in calories – as well as delicious – and Yo! Sushi is currently running a 40pc off sushi sale until January 28. All you need to do is register your details at www.yosushi.com and download a voucher. The voucher is valid on up to 10 plates, prices for which range from £1.70 to £5 each.  Marks & Spencer has launched a new diet range called Simply Fuller Longer featuring salads, sandwiches and hot meals – all with £1 off for January. Prices start from £1.45 for a sandwich and the supermarket has also launched a new health website where customers can work out their BMI, recommended daily calorie intake to lose weight and find the calorie content of their favourite foods. Go to http://health.marksandspencer.com for more.  Tesco has cut the cost of fruit, veg and seafood – the staples of a health-conscious shopping list. Celery is on offer at two packs for £1, and lettuce, radishes and beetroot reduced to 89p, 50p and 42p. Make a healthy stir-fry with king prawns, half-price to £2.25, and carrot and broccoli at the promotional price of £1 for a 350g mixed pack.  The Co-operative has all you need to make exotic food that is good for you. Healthy Living Fresh Chicken Breasts are half price at £3.50, Reduced-Fat Indian Cooking sauce is reduced to 54p, Rozana basmati rice is 64p and Healthy Living plain nan bread 57p. It also has a Fusion Salad pack at half price, 89p, to serve on the side.  To keep you on track, Moneysupermarket.com/vouchers is offering a free Food Doctor Diet Club Book, as well as £50 off Food Doctor products when you spend more than £10 at www.thefooddoctor.com. Enter the promotional code MSMFRCLBK at the checkout.
Last week we brought you deals on keep fit equipment and ways to work out for    less &ndash; but as anyone looking to detox knows, exercise alone will not shift    that Christmas bulge.