Managing lactose intolerance starts with using lactase enzyme supplements and choosing suitable dairy-free alternatives.

What is Lactose Intolerance?
Lactose intolerance occurs when the small intestine produces too little lactase enzyme, causing difficulty digesting lactose in milk and dairy products.
Definition and Causes
Lactose intolerance, sometimes called lactose malabsorption, stems from reduced lactase activity.
- Primary intolerance develops naturally with age as lactase production falls.
- Secondary intolerance follows gastrointestinal illness or injury that affects the intestinal lining.
Recognising Lactose Intolerance Symptoms
Symptoms usually appear within a few hours of consuming dairy and range from mild to severe depending on lactose amount and enzyme levels.
Common Signs to Watch For
Digestive discomfort is the hallmark of lactose intolerance.
- Bloating and wind caused by fermentation of undigested lactose.
- Diarrhoea or loose stools as water is drawn into the intestine.
- Abdominal cramping due to gas and fluid shifts.
For more on gut health, see our Digestive Health Essentials.
Testing and Diagnosis
Confirming lactose intolerance helps you tailor dietary changes and supplement use for best results.
Breath and Blood Tests
Two main tests detect lactose malabsorption.
- Lactose hydrogen breath test measures hydrogen in exhaled air after lactose ingestion.
- Blood glucose test checks whether blood sugar rises as expected when lactose is broken down.
Consult a healthcare professional for personalised testing advice.
Using Lactase Enzyme Supplements
Lactase supplements replace the missing enzyme, helping you digest lactose with fewer symptoms.
How Enzyme Supplements Work
Lactase drops or tablets provide the enzyme your body lacks.
- Tablets taken just before eating dairy help break down lactose in the digestive tract.
- Liquid drops added to milk pre-digestion can make it lactose-free in about 24 hours.
Tips for Effective Use
Maximise benefit by matching supplement type and dose to your needs.
- Start with the recommended dosage on the product label.
- Adjust amount based on portion size and personal tolerance.
- Take with every dairy-containing meal to prevent symptoms.
Dairy-Free Milk Alternatives
Plant-based milks offer lactose-free options that suit cooking, cereal and hot drinks alike.
Popular Plant-Based Milks
Almond, soy and oat milks have distinct flavours and nutritional profiles.
- Almond milk: low in calories, mild nutty taste.
- Soy milk: higher protein, neutral flavour.
- Oat milk: naturally sweet, creamy texture.
For recipe ideas, check our Plant-Based Milk Recipes.
Nutritional Comparison
Many non-dairy milks are fortified to match cow’s milk calcium levels.
- Calcium: look for at least 120 mg per 100 ml.
- Protein: soy tends to be closest to dairy at around 3 g per 100 ml.
- Added sugars: choose unsweetened versions to limit extra carbohydrates.
Dairy-Free Cheese and Yoghurt
Non-dairy cheeses and fermented alternatives can fill the gap left by traditional products.
Fermented Alternatives
Coconut, almond and soy bases underpin most dairy-free yoghurts.
- Cultured coconut yoghurt offers probiotics with a tangy taste.
- Soy yoghurt provides more protein and mild flavour.
Vegan Cheese Options
Cashew, almond or tofu-based cheeses imitate texture and taste.
- Nutritional yeast adds a cheesy flavour to sauces and dips.
- Firm vegan cheeses can be sliced for sandwiches and salads.
Balancing Nutrition and Enjoyment
Adapting your diet preserves bone health, protein intake and culinary pleasure.
Meeting Calcium Needs
Combine fortified milks, green leafy vegetables and supplements if necessary.
- Tofu set with calcium sulfate can supply over 200 mg per 100 g.
- Broccoli and kale contain 50–100 mg per 100 g.
Maintaining Variety
Rotate between different alternatives to avoid taste fatigue and boost nutrient range.
- Use oat milk in porridge for creaminess.
- Stir almond yoghurt into smoothies for a nutty twist.
- Melt vegan cheese on pizza or pasta for familiar comfort.
FAQs
Here are some questions and answers:
Can I build tolerance over time?
Some individuals may gradually reintroduce small amounts of lactose to train residual lactase activity, but progress varies widely.
Is lactose-free dairy worth it?
Lactose-free labelled milk contains added lactase enzyme and tastes almost identical to regular milk without causing symptoms.
Are there risks with plant-based milks?
Most plant milks are safe, but check for allergens such as nuts or soy and opt for fortified products to secure calcium and vitamin D.