Data entry - Need to find nutritional data for products

I will provide you a spreadsheet of 500 food products from supermarkets Tesco, Asda and Sainsbury's. Your task is to find the nutritional data for each item -- calories, protein, carbohydrates, etc -- and add the information to the spreadsheet.

The data is usually listed on one of the supermarket websites. You may occasionally need to look up data on a manufacturer's website. If you cannot find the data after reasonable effort, you can just leave the entry blank.

Each item has a unit listed -- either "g", "ml" or "parts". You need to enter the nutritional amount per unit. For example, if there are 121 kcal in 100g, you should enter =121/100 in the spreadsheet. I will conduct some verification on a random sample to ensure the data is of reasonable quality.

I have attached a sample spreadsheet which has a few records already completed. Please take a look at this to ensure you can deliver work of the same quality/format.