Milk and dairy products provide many of the key nutrients needed daily, particularly calcium. Milk and dairy products also supply high-quality protein. Because of its animal source, milk protein is complete - meaning it provides a sufficient amount of the nine essential amino acids.
Dairy products are also naturally rich in B vitamins and most of the minerals considered to be essential in the diet, including calcium, magnesium, phosphorus, zinc, iodine, and selenium. In addition, milk also contains several vitamins and minerals that have been added to meet the requirements of the Food and Drug Administration.
Low-fat and nonfat milk may be fortified with vitamin A because this fat-soluble vitamin is lost when the milk fat is removed. Vitamin D is added to all milk to help the body better use calcium.
Milk also is a good source of carbohydrates. With the exception of cheeses and butter, milk products are higher in carbohydrates than protein or fat. Milk’s carbohydrate is lactose, a sugar unique to milk that is actually two sugars (glucose and galactose) linked together.
Food scientists call this type of sugar a “disaccharide.” Lactose is not as sweet as other sugars. It helps the body absorb calcium and phosphorus and may even help in the growth of friendly bacteria needed in the intestines.
In addition, galactose, one of the sugars in lactose, is a vital part of brain and nerve tissue. It is released when the body digests lactose. Lactose is a bit of a paradox, however.
Although it has these beneficial properties, many people have difficulty digesting .
Despite all the nutrients in milk, the nutritional advantages of dairy products must be weighed against the potential health drawbacks of two key components in milk: sodium and fat.
Whole milk, cream, and cheeses contain substantial amounts of fat, especially saturated fat. These fats add calories and have been tied to higher cholesterol levels and cardiovascular disease. However, it is important to note that low-fat and nonfat milk varieties are available and are significantly lower in fat than whole milk.
In addition, depending on how much is consumed, milk or products made from milk may be a major source of sodium - a special concern for anyone following a low-sodium diet.
As many as 50 million Americans are estimated to have lactose intolerance - an inability to adequately digest ordinary amounts of dairy products such as milk and ice cream.
Worldwide, nearly 70 percent of the adult population is thought to be lactose intolerant, and the condition is very common among American Indians and those of Asian, African, Hispanic, and Mediterranean descent.
Lactose is the sugar that is naturally present in milk and milk products. It must be broken down by lactase (an enzyme found in the intestine) before the body can use it. If there is not enough lactase, undigested milk sugar remains in the intestine. Bacteria in the colon then ferment this sugar. Gas, cramping, and diarrhea can follow.
Most of us begin to lose intestinal lactase as we age. However, this occurs to varying degrees. Thus, people with lactase deficiency vary in their ability to comfortably digest milk and milk products.
As obvious as the symptoms of lactose intolerance may be, it is not easily diagnosed from the symptoms alone. Many other conditions, including stomach flu and irritable bowel syndrome, can cause similar symptoms.
See your physician to determine whether you are lactose intolerant. Measurement of the hydrogen in your breath after you have taken in lactose is a useful test because large amounts of hydrogen indicate that lactose is not being fully digested and that you are probably intolerant.
Persons with milk allergies should avoid milk, but those with lactose intolerance often do not need to follow a diet that is completely lactose-free. The following suggestions may help:
- Avoid eating or drinking large servings of dairy products at one time. (Several smaller servings over the course of a few hours are much easier to digest.)
- Drink milk or eat dairy products with a meal.
- Choose hard or aged cheeses, such as Swiss or cheddar, over fresh varieties. Hard cheeses have smaller amounts of lactose and are more likely to be tolerated.
- Take lactase tablets or drops, such as Lactaid or Dairy Ease. These types of products contain the enzyme that breaks down lactose, reducing the amount that your body must digest on its own.
For help with meal planning, you may want to see a registered dietitian.















We start drinking milk from the first day of our life ’till our last, right? And that’s great, because milk is the only complete nutrient: it contains all 3 main nutriments categories (proteins, glucids/carbohydrates and lipids), along with vitamins (A,D,E and B group) and minerals (Calcium, Phosphor, Zinc and Iron)




