Brenda Khan
Dairy-free diets are becoming increasingly common, with many people choosing to cut out dairy for health, ethical, or personal reasons. Dairy-free diets are often adopted by those with an allergy or intolerance to lactose, the sugar found in milk, or to milk proteins such as casein and whey. Dairy-free diets can also be beneficial for skin health, reducing bloating, and improving digestive health. However, dairy is a valuable source of nutrients such as calcium, protein, and vitamins B12 and D, so it is important to ensure these are replaced with non-dairy alternatives such as fatty fish, leafy greens, tofu, and legumes.
| Characteristics | Values |
|---|---|
| Reason | Allergy or intolerance, personal preference, or ethical reasons |
| Food items to avoid | Milk, cheese, butter, cream, and yogurt |
| Nutritional considerations | Calcium, vitamin D, vitamin B12, protein, iodine, and riboflavin |
| Substitutes | Dairy-free milk, yogurt alternatives (soy, rice, coconut, oat, or almond milk), tofu, legumes, eggs, fatty fish, fortified cereals, leafy greens, meat, and nuts |
| Food labels | "Dairy-free" products may still contain milk derivatives like casein or whey; "nondairy" products are allowed to contain a small percentage of milk by weight |
| Eating out | Ask the server if a particular dish is dairy-free; request an ingredient list if unavailable |
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What You'll Learn
Non-dairy alternatives
Dairy foods include milk and any foods made from the milk of animals, such as yoghurt, butter, or cheese. A non-dairy diet means avoiding these foods and their derivatives.
There are several reasons why someone might want to avoid dairy. Firstly, some people are allergic to milk and dairy products, which can cause a range of symptoms from hives and stomach upset to severe anaphylaxis. Secondly, lactose intolerance, which affects 75% of the world's population, is caused by insufficient production of the enzyme lactase, which is needed to digest the milk sugar lactose. Thirdly, some people choose to avoid dairy due to cultural preferences, or because they feel better without it. Finally, some people avoid dairy due to concerns over potential contaminants in conventional milk and dairy products, such as hormones and pesticides.
For those who want or need to avoid dairy, there are many non-dairy alternatives available. These include:
- Milk alternatives: Soy milk, rice milk, coconut milk, oat milk, and almond milk. These alternatives vary in their nutritional content, with soy milk providing the most protein (7 grams per cup) and almond milk containing the fewest calories (60 per cup). Some of these alternatives are also fortified with calcium and vitamin D to make them more similar to dairy milk, while others have added sugars to enhance their taste.
- Yogurt alternatives: Coconut milk yogurt, almond milk yogurt, soy milk yogurt, and hemp yogurt. These alternatives vary in their nutritional content, with soy milk yogurt providing the most protein (6 grams per 6 ounces) and coconut milk yogurt containing the most calories (180 per 6 ounces).
- Other dairy alternatives: For butter, homemade nut-based substitutes can be a good option, as some processed non-dairy alternatives may contain unhealthy ingredients. For cheese, homemade substitutions with whole foods like tofu, nuts, and nutritional yeast can be made, although these may have lower protein content than dairy cheese.
It is important to note that even if a food is labelled "dairy-free", it may still contain milk derivatives such as casein or whey, which can be unsafe for people with milk allergies. Therefore, it is important to read the ingredient list carefully. Additionally, non-dairy diets may require extra attention to ensure adequate intake of certain nutrients, such as calcium, iodine, and vitamin D.
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Nutritional deficiencies
Dairy foods are any foods made from the milk of animals, including yoghurt, butter, and cheese. Dairy is a valuable contributor to a healthy, balanced diet, providing protein, calcium, iodine, and other key nutrients.
A non-dairy diet, therefore, risks nutritional deficiencies in these key areas. Firstly, protein deficiency can be an issue for those on a non-dairy diet, as dairy products are a major source of protein in the average diet. Protein is vital for muscle growth, cell repair, and metabolic regulation, so a deficiency can lead to muscle damage and metabolic impairment. However, there are plenty of non-dairy sources of protein, including lean meats, tofu, legumes, eggs, whole grains, and grains such as quinoa, brown rice, and oats.
Secondly, calcium deficiency is a common issue for those avoiding dairy. Calcium is vital for building bone mass, as well as muscle contractions, blood clotting, and regulation of heart rate. A calcium deficiency can lead to osteoporosis and other health defects. Non-dairy sources of calcium include calcium-fortified orange juice, cranberry juice, breakfast cereals, and soy milk. Some almond milk brands also have added calcium. Nondairy foods that are naturally high in calcium include kale, collard greens, tofu, shellfish, salmon, legumes, and amaranth.
Thirdly, vitamin D deficiency can be a concern for those on a non-dairy diet, as vitamin D is usually found in milk and dairy products. Vitamin D is important for the absorption of calcium. Good non-dairy sources of vitamin D include eggs, fatty fish, oysters, fortified cereals, and cod liver oil.
Finally, a non-dairy diet may also result in zinc and phosphorus deficiency. These deficiencies can cause poor immune function, nerve and muscle pain, osteoporosis, and impairments of the senses. Meat is a plentiful source of both these minerals, but for those on a vegetarian or vegan diet, lentils, chickpeas, pumpkin seeds, and sesame seeds are good alternatives.
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Food allergies
A non-dairy diet means avoiding foods that contain milk or milk products, such as yoghurt, butter, and cheese. Dairy foods are made from the milk of animals, including cows, goats, and sheep.
Some people follow a non-dairy diet because they have a milk allergy or lactose intolerance. A milk allergy is a type of food allergy, where the immune system reacts to one or more of the proteins (albumin, casein, or whey) present in milk. This is a Type 1 hypersensitivity reaction, which can be triggered by a very small amount of milk protein. Symptoms of a milk allergy can range from wheezing to vomiting and diarrhoea. Those with a milk allergy must be vigilant about checking food labels and understanding that even "non-dairy" products may contain milk derivatives.
Lactose intolerance, on the other hand, is when a person cannot digest lactose, the sugar found in dairy products. This often results in stomach pain, gas, and diarrhoea. Those with lactose intolerance may still be able to consume small amounts of milk or processed dairy products without ill effects.
For those with a milk allergy or intolerance, a non-dairy diet is essential to managing their condition and avoiding uncomfortable or dangerous symptoms. This may involve substituting dairy products with non-dairy alternatives, such as plant-based milks, non-dairy margarine, or oils. It is important to note that even with these alternatives, a non-dairy diet may result in nutrient deficiencies, so it is recommended to consult a doctor or dietitian to ensure adequate nutrient intake.
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Lactose intolerance
Dairy foods are any foods, such as yogurt, butter, or cheese, made from the milk of animals, including cows, goats, or sheep. Dairy is a valuable contribution to a healthy, balanced diet, providing protein, calcium, iodine, and other key nutrients.
Some people may choose to follow a non-dairy diet because they are allergic or intolerant to dairy. Lactose intolerance is a common condition where the body is unable to digest lactose, a sugar found in milk and milk products. Lactose intolerance occurs when the small intestine does not produce enough of the enzyme lactase, which is responsible for breaking down and absorbing lactose. People with lactose intolerance may experience digestive symptoms such as bloating, diarrhea, gas, nausea, and abdominal pain after consuming dairy products. The condition is usually harmless but can be uncomfortable. It is important to note that lactose intolerance is different from a milk allergy, which can cause a severe allergic reaction.
It is important to ensure that you are still getting enough calcium, iodine, and other key nutrients when reducing or eliminating dairy from your diet. Calcium can be found in non-dairy foods like green leafy vegetables, nuts, fish with bones (such as tinned sardines), and calcium-fortified foods like orange juice, breakfast cereals, and some non-dairy milk alternatives. Vitamin D, which is important for calcium absorption, can be obtained from eggs, fatty fish, oysters, fortified cereals, and cod liver oil. Consulting with a registered dietitian can provide specialist guidance on maintaining a nutritionally adequate diet while avoiding dairy.
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Dairy-free diet for children
Dairy foods include milk, yoghurt, butter, and cheese made from the milk of animals such as cows, goats, or sheep. Dairy is a valuable contributor to a healthy, balanced diet. It is nutrient-dense, providing protein, calcium, iodine, vitamin D, and vitamins B2 and B12.
Some people avoid dairy because they have an allergy or intolerance, or because they dislike the taste, have a cultural preference, or feel better without it. Cow's milk protein allergy (CMA) is a common food allergy in infants and children, affecting 2-3% of children in the UK, and it often occurs alongside lactose intolerance. CMA can cause symptoms such as a rash, eczema, or digestive issues like bloating, vomiting, or diarrhoea. Lactose intolerance is less severe than CMA but can still lead to digestive, skin, and inflammatory symptoms.
If your child has been advised to follow a dairy-free diet, it is important to read food labels and teach your child to do so too. All cow's milk products contain dairy, but there are many dairy substitutes available, including dairy-free milk and yoghurt alternatives made with soy, rice, coconut, oat, or almond milk. Some of these alternatives have added vitamins and minerals, including calcium, vitamin D, protein, and vitamin B12. However, it is important to note that even if a food is labelled "dairy-free", it may still contain milk derivatives such as casein or whey, which are unsafe for people with milk allergies. Therefore, it is recommended to consult a registered dietitian or your doctor to ensure your child gets the vitamins and nutrients they need while on a dairy-free diet.
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Frequently asked questions
A non-dairy diet is one that excludes all or most dairy products. This includes milk from any animal, as well as foods and drinks that contain milk, such as cheese, yoghurt, butter, and cream.
People choose to follow a non-dairy diet due to allergies or intolerances, personal preference, or ethical reasons.
A non-dairy diet can improve skin health and reduce bloating. It can also benefit digestive health and have a positive impact on the environment.
There are many non-dairy alternatives available, such as soy, rice, coconut, oat, or almond milk. There are also dairy-free yoghurt options and other milk alternatives like buffalo, goat, or sheep's milk.
Dairy is a source of calcium, protein, and vitamins B12, D, and A. When on a non-dairy diet, ensure you get these nutrients from other sources. For example, fatty fish, eggs, and fortified cereals are good sources of vitamin D.
