Cow’s milk
The pros: It’s got a lower GI rating than any other milk/milk substitute.
The cons: Whole cow’s milk contains high amounts of cholesterol and fat.
Best for: The GI diet.
Ditch it if: You’re going diary-free or are lactose intolerant.

Goat’s milk
The pros: Higher in calcium than cow’s milk, with smaller fat molecules which are tolerated easier by those with digestive problems. It’s also alkaline-based, unlike acidic cow’s milk.
The cons: Cow’s milk contains five times as much vitamin B5, and less fat than goat’s milk.
Best for: An alkaline diet.
Ditch it if: You’re on a low-fat diet.

Soy milk
The pros: Diet boffins say four daily soy servings can reduce bad cholesterol by as much as 10 per cent.
The cons: Many brands contain hidden sugars, so opt for an unsweetened version. Stomach problems, reproductive-related problems and allergy-related problems may arise from over-consumption.
Best for: Lactose-free diets.
Ditch it if: You’re trying to get pregnant.

Rice milk
The pros: It’s naturally sweet, with no need for added sugars.
The cons: It’s carb-based, so it’s not a protein source like regular cow’s milk.
Best for: A non-diary diet.
Ditch it if: You’re on a low-carb plan.

Camel’s milk
The pros: It contains less saturated fat than cow’s milk and three times as much vitamin C. It’s also rich in iron and vitamin B.
The cons: It contains more sodium, hence the salty taste.
Best for: A low-fat diet.
Ditch it if: You’re on a low- sodium diet.