Although people tend to accept that fruits and vegetables as more healthier foods , other food groups, such as dairy, reflects more discussion and seem to have conflicting answers.
Examples of typical servings of dairy include:
- 1 cup of milk
- 1 cup of yogurt
- 1 ounce of hard cheese, such as cheddar or Monterey Jack
- half a cup of cottage cheese or ground cheese
The USDA have advised people to consume milk every day. However, some health advocates believe that people do not need to eat dairy to be healthy. Others believe that dairy may even be bad for health if people consume too much of it.
These mixed messages can be confusing. In this article, we break down what the evidence says.
Dairy milk and Bones health
Calcium helps build strong bones and is necessary for other functions, such as muscle contraction and nerve transmission.
Dairy also contains other important nutrients for bone health, such as phosphorus and protein.
Although dairy products may contain more calcium than many other foods, evidence suggesting that consuming dairy can prevent bone fractures seems conflicting.
However, this was not the case in all the studies included in the analysis.
It is also important to explain that many other factors can affect bone health, including exercise, smoking status, alcohol use, and changes in hormone levels during aging.
One that involved more than 61,000 women and 45,000 men found a potential link between higher milk intake and higher mortality and higher incidence of bone fractures.
However, this association does not indicate a “cause and effect” relationship. For example, the women who had hip fractures and higher milk intake may have been drinking more milk because they were at risk of hip fractures.
The study authors caution that the results do not take into consideration other lifestyle factors and health conditions.
Another of 94,980 Japanese people found the opposite association, with a lower risk of mortality tied to increased milk consumption.
Overall, the majority of research on dairy suggests that milk is beneficial for bone health and cardiovascular health.
One thing that is clear is that calcium and the other nutrients that milk provides are necessary for bone health.
Those who cannot or choose not to consume dairy should consume speak to a doctor about whether they need a calcium supplement.
Dairy and Heart Health
Saturated fats are present in full fat dairy products such as whole milk, butter, and cream, and to a lesser extent, in reduced fat dairy products such as 1% milk. Saturated fats are also present in meat, some processed foods, coconut oil and palm oil.
The AHA say that saturated fats can lead to high cholestrol and heart diseases . As a result, many full fat dairy products do not appear in heart-healthy diet recommendations.
The AHA advise people to choose fat free or low fat dairy products to obtain calcium without the saturated fat.
However, recent evidence suggests that the link between saturated fat and heart disease is not as strong as people once believed. saturated fat in heart disease. Again, many other lifestyle factors are important when it comes to evaluating heart disease risk.
Although the links between full fat dairy and heart disease are no longer clear, there are other things a person can do to adopt a heart-healthy lifestyle, including:
- eating plenty of fruits and vegetables
- exercising regularly
- not smoking
- limiting alcohol consumption
- getting adequate amounts of sleep
- controlling blood sugar levels, if they have diabetes
People should also speak with a health professional about how often they need checks, cholesterol and glucose tests, and other measures that can predict heart disease risk.
Diabetes and Dairy
Diabetes is a common health condition, with diabetes and prediabetes . Although many factors influence whether or not a person will develop diabetes, diet is one important aspect.
found that consuming dairy, particularly yogurt, could have a protective effect against type 2 diabetes. Another study found that the people who consumed the most high fat dairy products had than those who consumed the least amount of high fat dairy.
Dairy may fit into a healthful diet for many people who have type 2 diabetes. As each person is different, it is best to speak with a doctor or nutritionist about diet recommendations for good blood glucose control and management of diabetes.
Nutrients in dairy
Milk contains a number of nutrients that are beneficial to health. It contains a complete protein, which means that it contains all the amino acids that are essential for health. It also contains other vitamins and minerals that other foods provide limited amounts of.
Whole milk contains:
- Calories: 149
- Protein: 7.69 grams (g)
- Carbohydrate: 11.7 g
- Fat: 7.93 g
- Calcium: 276 milligrams (mg)
- Vitamin D: 3.7 international units (IU)
- Vitamin B-12: 1.1 mcg
- Vitamin A: 112 IU
- Magnesium: 24.4 mg
- Potassium: 322 mg
- Folate: 12.2 IU
- Phosphorus: 205 mg
Most milk manufacturers fortify their products with vitamins A and D. A person can see whether milk is fortified by reading the ingredients label. The label will list the added vitamins, such as vitamin A palmitate and vitamin D-3, as ingredients.
Milk is a nutrient-rich drink, offering many nutrients that other beverages such as sports drinks, sodas, and other nondairy milk substitutes are lacking.
Dairy products contain a sugar called lactose. To digest lactose, a person’s small intestine must produce an enzyme called lactase.
Without enough lactase, a person will not be able to digest dairy products that contain lactose. This leads to symptoms of it which may include:
- stomach pain
Lactose is also present in human breast milk. Most babies are able to digest it without issues.
However, many people become lactose intolerant as their body slows down its production of lactase.
Some dairy products that are fermented, such as yogurt and certain hard cheeses, contain lower amounts of lactose than a glass of milk. These types of fermented products may be suitable choices for some people who are sensitive to lactose.
Other people find that almost any amount of dairy causes symptoms. People who cannot digest dairy may wish to consume lactose reduced dairy milk or fortified soy milk alternatives. Other nondairy milk alternatives do not provide similar nutrition.
The majority of reliable evidence suggests that dairy can be an important nutrient-rich choice for a healthful diet. However, it is up to each individual to decide whether or not to consume it.
People who do not or cannot consume dairy should obtain calcium from other sources, such as fortified nondairy soy milk, leafy green vegetables, and other calcium-rich foods.
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