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.
While hardly an ideal beverage, Diet Coke may seem like a better choice than classic Coca-Cola. Diet Coke has no calories, sugar or carbohydrates, while a 12-ounce can of regular Coke has 140 calories and 39 grams of sugar. But Diet Coke contains ingredients that can cause undesirable side effects, especially when consumed in large quantities.