While the terms 'meta-analysis' (a statistical method to combine the results of primary studies), or sometimes 'narrative synthesis', are frequently used to describe how quantitative research is synthesised, far more terms are used to describe the synthesis of qualitative research.
If your question is asking about the equivalent of teaspoons of sugar for the number of grams of sugar a 12 fl oz can of Coca-Cola Classic, then the answer is approximately 10 teaspoons. One can of Coke has 39g of sugar and 1 teaspoon of sugar is the equivalent of 4g of sugar. Answer: approx 10 teaspoons.
That 90g equates to more than 22 small (4g) teaspoons of sugar. Some sugar content is easy to work out: a 330ml can of regular Coca-Cola or Pepsi contains 35g - or almost nine teaspoons of sugar, all of it added. But a ready meal of sweet and sour chicken can also contain more than 22g or five-and-a-half teaspoons, some of which is naturally occurring in the pineapple.