Question: Does yogurt contain a large amount of protein?
About the article "Yogurt", section "Nutritional value and health benefits".

Candidate passages:
Yogurt, yoghurt, or yoghourt ( or ; from ; other spellings listed below) is a fermented milk product produced by bacterial fermentation of milk.
The bacteria used to make yogurt are known as "yogurt cultures".
Fermentation of lactose by these bacteria produces lactic acid, which acts on milk protein to give yogurt its texture and its characteristic tang.
Worldwide, cow's milk, the protein of which mainly comprises casein, is most commonly used to make yogurt, but milk from water buffalo, goats, ewes, mares, camels, and yaks is also used in various parts of the world.
Dairy yogurt is produced using a culture of "Lactobacillus delbrueckii" subsp.
"bulgaricus" and "Streptococcus thermophilus" bacteria.
In addition, other lactobacilli and bifidobacteria are also sometimes added during or after culturing yogurt.
Some countries require yogurt to contain a certain amount of colony-forming units of microorganisms.
In Western culture, the milk is first heated to about 80 °C (176 °F) to kill any undesirable bacteria and to denature the milk proteins so that they set together rather than form curds.
In some places, such as parts of India, curds are a desired component and milk is not pasteurized but boiled.
The milk is then cooled to about 45 °C (112 °F).
The bacterial culture is added, and the temperature is maintained for 4 to 7 hours to allow fermentation. 
Strained yogurt contains significantly more protein than non-strained yogurt, including both casein and whey protein.
During the straining process, although the liquid whey is strained, the original whey and casein protein present in milk remain intact.
Strained yogurt, like non-strained yogurt, is also considered a good source of beneficial pro-biotics. 
Originally marketed as frozen yogurt, Pinkberry has faced complaints that its product does not meet the California Department of Food and Agriculture's definition of frozen yogurt because it does not contain the necessary amount of bacterial cultures per ounce.
The "Los Angeles Times" sent samples of Pinkberry's product to a lab and revealed that Pinkberry did contain active yogurt cultures, but it does not contain the minimum amount of culture to call itself frozen yogurt, according to California state law.
According to the "Los Angeles Times", Pinkberry's product had 69,000 bacterial cultures per gram, compared to 200,000 for Baskin-Robbins.
The National Yogurt Association (NYA) established its own criteria for live and active culture yogurt.
In order for manufacturers to carry their Live and Active Culture seal, refrigerated yogurt products must contain at least 100 million cultures per gram at the time of manufacture, and frozen yogurt products must contain 10 million cultures per gram at the time of manufacture.
This level was based on a survey of leading research scientists involved in clinical studies of the health attributes associated with live and active culture yogurt.
Pinkberry appears to have altered its dessert recipe and has now earned the right to call its product real yogurt.
Pinkberry officially received the Live and Active Cultures Seal from the National Yogurt Association on April 17, 2008, almost 3 years after the initial "real yogurt" lawsuit was filed.
The Pinkberry jingle heard on its Web site is sung by the 1980s musician Tigra, from L'Trimm.
Apparently in response to the recent lawsuit against Pinkberry claiming that its product is not "real yogurt," for a while Pinkberry had removed all lyrics to this jingle on its Web site except for the word "Pinkberry," which repeats over and over again at the chorus (prior to this change, the jingle had lyrics that characterized Pinkberry's product as "yogurt," and compared its product as better than ice cream).
The original jingle is now playing again on the Web site.
The unproven health benefits attributed to yogurt that were previously posted on the walls of Pinkberry (e.g., cures colon cancer, fights yeast infections) have been removed. 
YoGo is an Australian brand of dairy yogurt snacks owned by Japanese multinational company National Foods.
Despite its name, YoGo does not have the typical flavour of yogurt, and is a high sugar dessert which contains less protein than yogurt.
Flavours include chocolate, strawberry, banana, choc mint, cookies and cream, strawberries 'n' cream, and choc marshmallows.
The YoGo brand image is built around Claymation characters YoGorilla, his friend Snake, Hans Doberman, Liz Lioness, Alien, Ash Ratcliffe and Gordon Ghekko. 
Goji's Frozen Yogurt is a Canadian frozen yogurt chain company founded by Janette Zacharias and Carol Wirsz and is based in Moncton, New Brunswick.
Goji's offers self-serve frozen yogurt with a large selection of yogurt flavors and toppings.