Why is skim milk white

Want to know about different types of milk? From skim milk to lactose-free milk, this guide explains milk fat percentages and the many varieties of milk. Check your shopping list—how many gallons of milk do you plan to purchase for you and your kids this week? What types of milk do you buy? When you shop in the dairy case, the primary types of milk available are whole milk 3. Each one packs nine essential nutrients including 8 grams of high-quality protein. Types of milk vary by percentage of milkfat, or the amount of fat that is in the milk by weight.

These percentages are noted on the package and by the different cap colors to show the milkfat at a glance. While the amount of milk fat does affect the number of calories and fat in each serving, all milk—from fat free to low-fat to organic and lactose free milk—remains a naturally nutrient-rich, simple and wholesome food.

Understanding your choices and their differences can help you determine the most suitable type of milk for each member of your family. Many Americans opt for whole milk—which is actually 3. There are calories in an 8-ounce glass of whole milk, with 8 grams of fat 12 percent of daily value. And if you are concerned about consuming fat, there is good news. While more research is needed on the potential benefits of dairy fats, experts agree milk plays an important role in a healthy diet in the overall context of the total diet, nutrients and calories.

Here are the facts about the other types of milk in the dairy case. Reduced-fat milk is labeled as 2 percent milk, which means the milkfat is 2 percent of the total weight of the milk—not that an 8-ounce glass of milk contains 2 percent fat.

The difference between low-fat milk and whole milk is the amount of fat in each serving. This also is reflected in the calories for each as well. An 8-ounce serving of low-fat milk contains 2. If you are looking for the same nutrients as whole milk, but want to cut calories and fat, fat-free also known as skim milk is a good choice.

In fact, because it has less fat, there are just 80 calories in fat-free milk in each 8-ounce glass. There is a misperception that skim milk contains water to reduce the fat content—but that is not the case.

The 13 essential nutrients, including 8 grams of high-quality protein, remain intact. Maybe you will want to send Scienceline another question about light scattering, or maybe you will want to ask a friend, teacher or parent to explain it. Anyway, it doesn't change the fact that milk is tasty, right? I don't know exactly why milk is white. In general, though, the color of something depends on what colors it reflects versus what colors it absorbs or transmits.

So, if you have "white" light all colors of the rainbow shining on, say, lemonade then yellow light is getting reflected to your eyes while other colors are being absorbed by the lemonade. If you can see through the lemonade, then some of the light is also being transmitted through.

You usually can't see through milk so very little light is getting transmitted. The light that get reflected looks white. The rest is adsorbed. Why is milk white? Answer 1: Milk is white because of its reflectance properties. Answer 2: All milk is white but the shades of white will vary depending upon the composition or what is dissolved in the milk.

Answer 3: NEAT question. Answer 4: I don't know exactly why milk is white. Regular or full fat milk has an average of 3. Fat-modified milk is made by removing part or most of the fat in regular milk. Reduced fat milk varieties will naturally have less calories than regular full fat milk as fat is high in energy and contains 9 calories per gram. Regular milk has 60 calories in every ml, while reduced fat has 47 calories and skim fat-free has 36 calories in the same amount of milk.

Skim fat-free milk contains both the lowest of amount of calories and fat compared to other dairy milks. This applies to fresh, powdered and long life milk varieties too. The good news is that all types of milk, no matter the fat content, contain the same essential nutrients including calcium for bone health and protein for muscle growth and repair.

Research also continues to show that milk, cheese and yoghurt are not linked to weight gain - this applies to all varieties, including regular fat products.