Oat Milk Vs. Soy Milk: Exploring The 4 Key Differences
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Plant-based milk alternatives have gained significant popularity as more individuals seek dairy-free options. Two popular choices are oat milk and soy milk for those seeking dairy-free alternatives. Both oat milk and soy milk offer creamy textures, pleasant flavours, and a range of nutritional benefits. Whether you're considering a switch to plant-based milk or are simply curious about these alternatives, join us as we unravel the choices and discover which one might be the perfect fit for your dairy-free delights.

The Shift Towards Plant-Based Milk

The demand for plant-based milk has surged in recent years due to shifting consumer preferences and dietary choices. Health consciousness is a significant driver, with people actively seeking healthier plant-based alternatives to dairy milk. Plant-based milk like almond, soy, oat, and coconut milk are perceived as healthier options due to their lower saturated fat and cholesterol content, and they are lactose-free, making them suitable for those with intolerances or allergies.

Environmental concerns have also contributed to their popularity, as animal agriculture has a significant environmental impact. Plant-based milk requires fewer resources, emits fewer greenhouse gases, and is seen as a more sustainable choice. The accessibility and availability of plant-based milk have increased, with widespread availability in stores, coffee shops, and restaurants, making them easily accessible to consumers. This visibility and marketing have normalised their consumption and expanded their reach.

Oat Milk

Oat milk is a popular plant-based milk alternative made from oats and water. It is created by blending oats with water and then straining the mixture to remove any solids, resulting in a smooth and creamy liquid. Oat milk has gained popularity among individuals who are lactose intolerant, have dairy allergies, or follow a vegan or plant-based diet.

Oat milk has a mild, slightly sweet taste and a creamy texture similar to dairy milk. It is often used as a substitute for dairy milk in various applications, such as coffee, tea, smoothies, cereal, and baking. Oat milk can be found in grocery stores and is also easy to make at home.

Soy Milk

Soy milk is a popular plant-based milk alternative made from soybeans and water. It is created by soaking and grinding soybeans, then boiling the mixture and filtering out the solids to obtain a smooth, creamy liquid.

Soy milk has a mild, slightly nutty taste and a creamy texture similar to dairy milk. It is widely used as a substitute for dairy milk in various beverages, cooking, and baking recipes. Soy milk can be found in grocery stores and is available in different flavours, such as plain, vanilla, or chocolate.

Oat Milk Vs. Soy Milk: How Do These Milk Compare?

When comparing oat milk and soy milk, there are distinct differences in taste, texture, nutritional profile, and sustainability. Let's explore each aspect in detail:


Oat milk offers a mild and slightly sweet taste with subtle hints of oats. It provides a pleasant and creamy taste that works well in a variety of beverages and recipes. The natural sweetness of oats can add a delightful touch to coffee, tea, smoothies, or cereal. Some oat milk brands may also offer flavoured varieties, such as vanilla or chocolate, providing additional taste options for consumers.

Soy milk has a distinctive nutty taste that is reminiscent of dairy milk. The nuttiness is a result of the soybean's origin. While some people appreciate the unique taste of soy milk, others may find it more polarising. The flavour of soy milk can be enjoyed on its own or used in various recipes, including coffee, tea, baking, or cooking.


Oat milk has a naturally creamy texture that closely resembles that of whole dairy milk. It has a slightly thicker consistency compared to soy milk, which can make it an excellent choice for those looking for a creamier option. The velvety smoothness of oat milk makes it suitable for adding richness to beverages like coffee or for creating creamy desserts and sauces.

Soy milk has a smooth and silky texture, often resembling skim dairy milk. It has a consistent thickness that works well for various applications. The texture of soy milk is notably more uniform compared to oat milk, making it a reliable substitute for dairy milk in most recipes. It blends smoothly into coffee, tea, or smoothies and can be used in cooking or baking without compromising texture.

Nutritional Profile

Oat milk is generally lower in fat and higher in carbohydrates compared to soy milk. It offers dietary fibre, which aids in digestion and can contribute to a feeling of fullness. Oats naturally contain beta-glucan, a soluble fibre that has been linked to various health benefits, including heart health. Oat milk is often fortified with additional nutrients, such as calcium, vitamin D, and vitamin B12, to enhance its nutritional profile and provide similar benefits to dairy milk.

Soy milk is known for its higher protein content compared to other plant-based milk alternatives, including oat milk. It provides all the essential amino acids, making it a valuable source of plant-based protein for individuals following a vegan or vegetarian diet. Soy milk also contains healthy fats, including polyunsaturated and monounsaturated fats, which can be beneficial for heart health. Like oat milk, soy milk is often fortified with additional nutrients, such as calcium and vitamin D, to match the nutritional profile of dairy milk.


Oat milk has gained recognition for its relatively low environmental impact. Oats require less water and have a lower carbon footprint compared to some other crops, including soybeans. Oat cultivation is considered more sustainable as it consumes fewer resources and contributes to soil health. Additionally, oats are often grown locally, reducing the need for long-distance transportation.

Soy milk is derived from soybeans, which have been a subject of debate regarding their sustainability. While soybeans are a versatile crop, their production has been associated with deforestation, habitat destruction, and pesticide use in some regions. However, it's worth noting that sustainably sourced and responsibly cultivated soybeans can mitigate these concerns. Choosing soy milk brands that prioritise sustainable sourcing and production practises can help address sustainability issues associated with soybean cultivation.

So Which Milk Is Better?

The question of which is better between oat milk and soy milk ultimately depends on individual preferences, dietary needs, and taste preferences. Both oat milk and soy milk offer unique qualities and benefits that cater to different individuals and lifestyles.

Some individuals may prefer the subtle sweetness and creaminess of oat milk, while others may appreciate the nutty flavour and protein content of soy milk.