Why nutrient deficiencies matter
Nutrient deficiencies are more common than many people realise and may impact overall wellbeing. When dietary intake of essential vitamins and minerals is inadequate, it can affect areas such as energy levels, muscle function, immune health and general vitality.
In Australia, certain groups may be more likely to have lower nutrient intake, including infants, older adults, pregnant women and individuals following restricted diets or plant-based diets. Lifestyle factors, sun exposure and dietary habits can also influence your nutrient requirements.
If you are experiencing ongoing or unexplained symptoms, it may be worth reviewing your diet and speaking with a healthcare professional.
What are the most common nutrient deficiencies in Australia
Iron
Iron aids healthy red blood cell production and helps transport oxygen throughout the body. Inadequate dietary intake may contribute to feelings of tiredness and reduced energy. Good dietary sources of iron include red meat, poultry, eggs, legumes, tofu and leafy green vegetables such as spinach.
Women of reproductive age, people following plant-based diets and those with higher physical demands may have increased iron requirements.
When dietary intake is inadequate, iron supplementation may help maintain iron levels in the body.
Calcium
Calcium is important for maintaining bone strength and supporting normal muscle function. Adequate calcium intake is important for bone health, particularly as you age. Calcium can be found in dairy products such as milk, yoghurt and cheese, as well as fortified plant milks, tofu, almonds and leafy greens.
Older adults and those who avoid dairy products may be at higher risk of inadequate calcium intake.
When dietary intake is insufficient, calcium supplementation may help support bone health.
Iodine
Iodine is required for the production of thyroid hormones, which help regulate metabolism. Adequate intake is particularly important during pregnancy. Dietary sources of iodine include seafood, seaweed, dairy products and iodised salt.
People who avoid seafood or iodised salt may have lower iodine intake.
Magnesium
Magnesium supports muscle function, nerve conduction and energy production. Low intake may contribute to muscle cramps and fatigue in some individuals. Magnesium is found in nuts, seeds, whole grains, legumes and leafy green vegetables.
Low intake may be more common in people with restricted diets or digestive conditions that affect nutrient absorption.
Common vitamin deficiencies
Vitamin A
Vitamin A supports eye health, immune system function and skin health. Low intake may affect night vision and general immune function. Vitamin A can be obtained from foods such as liver, eggs and dairy products, as well as orange and green vegetables like carrots, sweet potato and spinach.
If your diet is lacking in key nutrients, a multivitamin may help support daily nutritional intake.
Vitamin B group
B vitamins support energy production, nervous system function and red blood cell health. B vitamins are commonly found in whole grains, meat, eggs, dairy products and legumes.
Intake may be lower in restrictive or plant-based diets.
Vitamin D
Vitamin D helps calcium absorption and supports bone health and immune system function. It is found in foods such as fatty fish, eggs and fortified foods, and is also produced in the body through sun exposure.
Sun exposure is a key source, but some individuals may have lower levels due to limited sunlight or dietary intake.
How to support your nutrient intake
A balanced diet that includes vegetables, fruits, whole grains, legumes, nuts, seeds and quality protein sources is the preferred way to maintain adequate nutrient intake and support overall health.
However, meeting daily requirements is not always easy for some people. Busy lifestyles, dietary restrictions and different life stages can make it more challenging to obtain sufficient nutrients from diet alone.
In these situations, supplements may help support nutrient intake when dietary intake is inadequate, but they should not be used as a replacement for a balanced diet.
A note on individual needs
Before starting any supplement, it is important to consider your individual circumstances. If you are pregnant, taking medication or managing a health condition, speak with your healthcare professional to determine what is appropriate for you.
Always read the label and follow the directions for use.
Frequently Asked Questions
What are the signs of nutrient deficiencies?
Common signs may include fatigue, reduced energy levels, muscle weakness and changes in general wellbeing. Symptoms can vary depending on the nutrient involved.
What is the most common deficiency in Australia?
Iron deficiency is considered one of the more common nutrient deficiencies, particularly among women of reproductive age.
Can diet alone provide enough nutrients?
A balanced diet can provide most essential nutrients. However, some individuals may require additional support depending on their lifestyle, diet or life stage.
Are supplements necessary for nutrient deficiencies?
Supplements may help support nutrient intake when dietary intake is inadequate. They should be used appropriately and not as a substitute for a balanced diet.
How can I improve my nutrient intake naturally?
Focusing on a varied diet that includes whole foods, vegetables, fruits, protein sources and healthy fats can help support daily nutrient intake.
Key Takeaway
Nutrient deficiencies can affect overall wellbeing, but they are often manageable through a balanced diet and appropriate lifestyle choices. Understanding your dietary intake and individual needs is an important step in supporting long-term health.
