Leena Watts
The Mediterranean diet is often regarded as one of the healthiest diets in the world, characterised by its emphasis on fruits and vegetables, whole grains, beans, nuts, legumes, olive oil, and moderate consumption of fish, eggs, poultry, and dairy. However, in recent years, changes in lifestyle have led to a deviation from recommended nutrient intakes. The Mediterranean diet may not meet calcium requirements, especially when compared to recommendations in Western countries like the United States and Australia. Additionally, some populations following this diet have been found to have deficiencies in certain vitamins, minerals, and omega-3 fatty acids. While generally well-rounded, the Mediterranean diet may require supplementation or adjustments to ensure adequate intake of specific nutrients.
| Characteristics | Values |
|---|---|
| Calcium | The Mediterranean diet does not meet the current calcium recommendations in the United States and other Western countries. |
| Vitamins | The Spanish population has problems with vitamins A, D, E, B2, B6, and folic acid. |
| Minerals | The Spanish population has a mineral intake below the recommended values. |
| Iron | You may have lower levels of iron. |
| Vitamin C | You may not get enough vitamin C, which helps your body absorb iron. |
| Dairy | Dairy foods are the number one source of calcium, vitamin D, and potassium, three nutrients that are underconsumed by Americans. |
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What You'll Learn
Calcium and vitamin D
The Mediterranean diet is known for its health benefits, including lower risks of cardiovascular disease, diabetes, and overall mortality rate. It is typically high in vegetables, fruits, nuts, legumes, whole grains, and fish, while being low in red and processed meats and moderate in alcohol consumption.
However, in recent years, there has been a shift away from the traditional Mediterranean diet, with a decrease in the intake of cereals and vegetables and an increase in fats and animal products. This shift has made it more challenging to obtain adequate amounts of certain vitamins and minerals.
One nutrient that may be lacking in the modern Mediterranean diet is calcium. While a Mediterranean dietary pattern does not necessarily result in lower calcium intake, it can affect the absorption and retention of calcium. A study on Spanish boys aged 11-14 found that those who consumed a Mediterranean diet had significantly higher calcium absorption and retention rates, which may help maximize peak bone mass and prevent osteoporosis.
Vitamin D is another nutrient that has received attention in the context of the Mediterranean diet. Vitamin D is crucial for maintaining optimal health, especially for its role in calcium metabolism and skeletal health. Deficiency in vitamin D has been observed in Mediterranean countries, potentially due to a combination of factors such as reduced exposure to sunlight, dietary habits, and sedentary lifestyles.
It is important to note that the Mediterranean diet is not a uniform eating pattern, and there are regional variations within the Mediterranean region. Thus, the availability and consumption of specific nutrients, including calcium and vitamin D, may vary across different Mediterranean countries and populations.
In summary, while the traditional Mediterranean diet is generally considered nutritious and balanced, modern variations may lead to deficiencies in certain nutrients, including calcium and vitamin D. Further research and educational campaigns are necessary to address these potential deficiencies and promote a healthier diet that aligns with the traditional Mediterranean eating patterns.
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Iron and vitamin C
The Mediterranean diet is characterised by a high proportion of olive oil, beans, unrefined cereals, fruits and vegetables, moderate to high levels of fish, moderate levels of dairy products (mostly cheese and yoghurt) and wine, and low consumption of meat and meat products. This diet has been associated with a range of health benefits, including reduced risk for cardiovascular disease and lower mortality rates.
However, in recent years, changes in lifestyle have led to deviations from the recommended intakes of certain nutrients. For example, there has been a decrease in the consumption of cereals and vegetables and an increase in the intake of fats and animal products. As a result, some individuals following a Mediterranean diet may not be meeting their recommended daily intakes for specific nutrients.
Vitamin C, or ascorbic acid, is another important nutrient that may be insufficient in the Mediterranean diet. Vitamin C is known for its antioxidant and anti-inflammatory properties and has been linked to a reduced risk of head and neck cancer. Fruits and vegetables are rich sources of vitamin C, and their adequate consumption is encouraged in the Mediterranean diet. However, it is worth noting that the intake of these food groups may not always meet the recommended levels, as observed in some studies.
To ensure adequate intake of iron and vitamin C while following a Mediterranean diet, it is advisable to include a variety of iron-rich and vitamin C-rich foods. Examples of iron-rich foods within the Mediterranean diet include beans, lentils, and spinach. For vitamin C, citrus fruits such as oranges, lemons, and limes are excellent sources, as well as bell peppers, broccoli, and tomatoes. Combining iron-rich foods with vitamin C sources can also enhance iron absorption in the body.
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B vitamins
The Mediterranean diet is often regarded as a model of healthy eating, and for good reason. It is typically low in red meat, sugar, and saturated fats, and high in fresh fruits and vegetables, nuts and seeds, whole grains, fish, and
However, in recent years, there has been a shift away from the traditional Mediterranean diet, particularly in Southern Europe. This change has resulted in a decrease in the consumption of cereals and vegetables and an increase in the intake of fats and animal products. As a result, some people following a Mediterranean diet may not be meeting their recommended intake of certain nutrients, including B vitamins.
A deficiency in B vitamins can have adverse effects on health. For example, a lack of vitamin B12, commonly found in animal products, can lead to neurological problems and anemia. Other B vitamins, such as riboflavin (B2) and pyridoxine (B6), are important for energy metabolism and the health of the nervous system. A deficiency in these vitamins can result in fatigue, skin problems, and impaired cognitive function.
To ensure adequate intake of B vitamins while following a Mediterranean diet, it is important to include a variety of B vitamin-rich foods. This includes continuing to consume whole grains, beans, legumes, and nuts, as well as incorporating other good sources of B vitamins, such as dairy products, poultry, and fish. By including a diverse range of these foods, individuals can help meet their recommended intake of B vitamins and promote overall health and well-being while adhering to the Mediterranean diet.
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Omega-3 fatty acids
The Mediterranean diet is a plant-based dietary pattern that is associated with a reduced risk of chronic diseases and improved longevity. It is typically rich in vegetables, fruits, nuts, legumes, whole grains/cereals, and fish, while being lower in red and processed meats, alcohol, saturated fat, and dairy products. The Mediterranean diet encourages the consumption of healthy unsaturated fats, including omega-3 fatty acids, which are known to promote heart health, lower triglyceride levels, and combat inflammation.
However, there is some debate about whether the Mediterranean diet provides sufficient omega-3 fatty acids. While most sources agree that the diet is rich in n-3 polyunsaturated fatty acids (PUFAs) derived from fish, seafood, and nuts, one study found that an elderly population in southern France following the Mediterranean diet had a deficiency in omega-3 PUFAs. This discrepancy may be due to the fact that the Mediterranean diet does not set strict rules for what to eat and avoid, but rather encourages the consumption of certain foods and the limitation of others. As a result, individuals following the diet may not be obtaining adequate amounts of omega-3 fatty acids.
To ensure adequate intake of omega-3 fatty acids, individuals following the Mediterranean diet can include specific foods in their meals. Dietary sources of omega-3s include fatty fish like salmon and mackerel, as well as plant-based sources such as flaxseed and chia seeds. Additionally, supplements like fish oil pills may provide benefits for certain individuals, but it is important to consult a healthcare professional before taking any dietary supplements.
In summary, omega-3 fatty acids are essential nutrients that play a vital role in human health, and the Mediterranean diet generally encourages their consumption. However, due to individual variations in dietary patterns, some people following the Mediterranean diet may not be obtaining sufficient amounts of omega-3 fatty acids. By including omega-3-rich foods and considering appropriate supplements under professional guidance, individuals can ensure they are meeting their body's requirements for these essential healthy fats.
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Vitamins A, B2, B6, E and folic acid
The Mediterranean diet is typically rich in vitamins and minerals, derived from vegetables, fruits, whole-meal cereals, nuts, virgin olive oil, and fish. However, there are certain nutrients that may be lacking in this diet, and these can vary depending on geographical location and individual factors such as age, sex, and income.
Vitamin A
Vitamin A deficiency has been observed in some individuals following a Mediterranean diet, particularly in adolescents, pregnant women, and individuals from low-income families in Iran. In Spain, more than 20% of the male population had inadequate intakes of certain vitamins and minerals, although it is unclear if vitamin A was among them.
Vitamin B2
Vitamin B2 deficiency is prevalent among low-income families in Iran, with up to 70% lower intake in some areas. However, it is unclear how prevalent this deficiency is among individuals following a Mediterranean diet in other regions.
Vitamin B6
Vitamin B6 intake was generally found to be adequate among individuals following a Mediterranean diet. However, there may be variations in different geographical locations within the Mediterranean region.
Vitamin E
Vitamin E intake was generally sufficient among those on a Mediterranean diet. However, specific data on potential deficiencies within different Mediterranean populations is limited.
Folic Acid
Folic acid, or folate, is an essential nutrient that can be lacking in the Mediterranean diet, particularly for women of childbearing age. Folate retention in food varies depending on the type of food and cooking methods. Folic acid supplementation or food fortification has been implemented in some countries to address this issue and prevent neural tube defects during pregnancy.
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Frequently asked questions
The Mediterranean diet is considered one of the healthiest diets in the world, but it may not meet all nutrient requirements. For example, it does not meet the current calcium recommendations in the US and other Western countries. It also may not provide sufficient iron, vitamin C, vitamin A, vitamin D, vitamin E, B vitamins, vitamin B2, vitamin B6, folic acid, omega-3, and certain minerals.
The Mediterranean diet recommends one to two servings of dairy per day, resulting in 700-800 mg of calcium. This is less than the recommended intake of 1000-1300 mg of calcium in the US.
You can include two to three servings of dairy foods in your daily meals to meet the calcium recommendations. Dairy foods are also a good source of vitamin D and potassium, which are often underconsumed.
The Mediterranean diet emphasizes fruits and vegetables, whole grains, beans, nuts, legumes, and olive oil. If you exclude any of these food groups, you may miss out on B vitamins, fiber, minerals like zinc, magnesium, and manganese, and phytonutrients.
You can focus on including a variety of foods from all the food groups in the Mediterranean diet. Additionally, taking a daily multivitamin can help ensure you meet your nutrient requirements.
