Traditional Yogurt
Traditional yogurt is made by introducing “live cultures,” aka bacteria, to milk so they can convert the lactose, or sugars, into lactic acid, explains Janette Marsac, RDN, LCSW, a New York City-based registered dietitian nutritionist. It’s unstrained, and can be made from skim, low-fat, or whole milk. Since it’s not strained of excess liquid, traditional yogurt tends to have a milkier, thinner texture than strained yogurts like Greek or Icelandic versions.
Greek Yogurt
Icelandic Yogurt
Its taste is often described as milder than Greek yogurt, and it has naturally low levels of sugar and lactose, says Diana Gariglio-Clelland, RD, CDCES, a Washington state–based registered dietitian with Next Luxury. You can find Icelandic yogurt in the United States marketed under brands such as Siggi’s and Icelandic Provisions.
Australian Yogurt
This unstrained yogurt tends to be creamy and rich, like a high-protein dessert. It’s made with skim milk and cream (or sometimes simply whole milk), and is cooked slower and longer than other yogurts. The brand Wallaby says that Australian yogurt’s smooth texture and mild taste are the result of a slow culturing process.
Noosa Yoghurt, another brand made (and spelled) in the Australian style, contains 150 calories per 4.5 oz, depending on the flavor. Because these tend to be sweeter and have less protein, they’re a good option for a healthier dessert.
French Yogurt
This style is made by a technique known as “pot set,” in which whole milk and live cultures are combined in individual pots and left to ferment for up to eight hours. French yogurt is not strained, so it retains some of its sweetness (and lactose), but is thicker than other unstrained yogurts, like Australian. French yogurt pots tend to be slightly smaller than other varieties, and so may have the advantage of built-in portion control. Several flavors from Oui by Yoplait, for instance, are 170 calories per 5-oz pot.