Nutritional Supplements

We are interested to purchase in bulk quantity from a contract manucturer pharma company having a good reputation.  Should be GMP certified, and reliable as well as having the product(s) in export and local market(s).  Should be able to make the product as per our specifications.  We would like to launch the new nutritional supplement product in Africa.  The product will contain all nutritional ingredients in proportions like Protein- Milk, Soya-hydrolised, Carbohydrates, Lactose, Sucrose, Dextrose or of milk., Fat vegetable or milk, Vitamins, minerals, and oligo-minerals, fibres, Amino Acids-Essential.  The product will be in powder form with different flavours like Chocolate, Strawberry, Banana, Milk, with appropriate coloring agents .The product should be soluble and most important criteria to have a good flavour, Delicious taste and colourful. It should give not less than 355 protein, 45 to 60% carbohydrates, fat should be 5%, Energy value should be at least 450 Kcal  and the minerals like Calcium, Iron, Phosphorus should be in good proportion.  We may add some antioxidants like Selenium, Zinc, Vit C and if possible QC10.  L-Carmitine as well Taurine a must.  Supplier should be able to give their insight and recommend changes, if required, in our formula.