Short, sourced answers to the questions people type into search engines about Greek yogurt, from "is it the same as strained yogurt" to "can dogs eat it", with links to the full guides.

There is no single best Greek yogurt. There is a best one for high protein, for eating with honey, for tzatziki, for a tight budget, for children and for lactose intolerance. A decision guide, not a ranking.

Every real Greek yogurt contains two live bacteria by definition. Whether they count as "probiotics" depends on who is defining the word. Here is what is in the tub, what survives, and what it does.

Reference tables for 0%, 2%, 5% and 10% Greek yogurt per 100 g and per typical serving, what changes with fat level, and how flavoured versions compare.

Plain Greek yogurt carries about 2.6 g lactose per 100 g, roughly half that of milk, and its live cultures help digest what remains. What that means in practice for lactose intolerance, and when it is not enough.

Greek yogurt is yogurt that has had part of its whey drained off. Here is what that means for texture, protein, lactose, labels and the difference between the real thing and "Greek-style".