Try a homemade protein drink made from oatmeal
The world of healthy eating has transformed beyond recognition over the past decade. Where industrially processed protein powders with dozens of artificial additives once dominated, more and more people are now seeking a way back to basics — to natural ingredients that humanity has known for centuries. And a homemade protein drink made from oats and nut butter is a perfect example of the fact that nutrition doesn't have to be complicated or expensive to be truly effective.
This isn't just a trend. There are compelling reasons behind the popularity of such drinks — nutritional, economic, and ecological ones. While commercial protein supplements are often packaged in plastic containers and full of sweeteners and stabilizers, the homemade version offers complete transparency of ingredients. You know exactly what you're drinking. And in today's world, where the food industry is becoming increasingly opaque, that is genuinely valuable.
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Why are oats and nut butter such an exceptional combination?
Oats are among the oldest and most widely cultivated grains in the world. Their nutritional value remains underappreciated to this day — many people consider them a "boring" breakfast, unaware of everything hidden beneath their unassuming surface. Oats are a rich source of complex carbohydrates, fibre, and plant-based protein — approximately 100 grams of dry oats contain around 13–17 grams of protein, depending on the variety and processing method. They also contain beta-glucan, a type of soluble fibre that, according to research published by the U.S. Food and Drug Administration (FDA), demonstrably contributes to lowering cholesterol levels and supporting heart health.
Nut butter — whether classic peanut, almond, cashew, or hazelnut — brings an entirely different nutritional profile to the drink. It is a source of healthy unsaturated fats, magnesium, vitamin E, and of course additional protein. Two tablespoons of peanut butter contain on average 7–8 grams of protein and approximately 16 grams of fat, the majority of which consists of beneficial mono- and polyunsaturated fatty acids. The combination of oats with nut butter thus naturally creates a nutritionally balanced foundation that satisfies, provides energy, and supports muscle recovery — all without a single artificial additive.
It is interesting to consider how this combination works from a digestive perspective. The complex carbohydrates from oats ensure a slow release of energy, while the fats from nut butter slow the absorption of sugars into the bloodstream. The result is a stable blood sugar level without sharp fluctuations, which are typical of, for example, a sweet fruit smoothie with no added fat or protein. For athletes who need to maintain performance throughout their entire workout, this is practically ideal fuel — both before and after training.
Consider Martina, a thirty-year-old runner from Brno who struggled for months with afternoon energy crashes. In the mornings she ate yoghurt with fruit, but by eleven o'clock she was so hungry that she reached for biscuits from the vending machine. Then she started experimenting with a homemade protein drink made from oats, almond butter, banana, and plant-based milk. The result? Her energy lasted throughout the entire morning and her cravings for sweets diminished significantly. No magic — just the basic principles of nutrition in practice.
Preparing such a drink takes no more than five minutes. The basic recipe is surprisingly simple: just blend a handful of oats (ideally pre-soaked or finely ground), one to two tablespoons of nut butter, a glass of plant-based or cow's milk, and optionally a banana for natural sweetness and a creamy consistency. Some people add a teaspoon of honey, others cinnamon or cocoa. It all depends on personal preferences and nutritional goals. The result is a thick, filling, and tasty drink that can easily replace a full meal.
It is worth mentioning that oats don't always need to be blended. If you prefer a thicker, pudding-like consistency, the drink can also be prepared using the so-called overnight oats method — soaking the oats in milk overnight, then adding nut butter in the morning and either blending or simply stirring everything together. Oats soaked overnight are also more easily digestible, because the soaking process partially breaks down phytic acid, which can inhibit the absorption of minerals such as iron and zinc.
The quality of ingredients determines everything
Not all oats are created equal, and not all nut butters are created equal. This is where one of the key differences lies between a drink that genuinely provides nutritional benefit and one that is only seemingly healthy.
When it comes to oats, the best choice is wholegrain, minimally processed oats — so-called rolled oats or coarse oats, which retain the maximum amount of fibre and nutrients. Instant oats are typically pre-cooked and more finely milled, which speeds up their digestion and reduces the nutritionally valuable beta-glucan content. For those who prioritise ecological production, organic oats from certified organic farming are an excellent choice — they contain no pesticide residues and their cultivation is gentler on both soil and water.
Nut butter is a chapter unto itself. There is an enormous range of products on the market that appear healthy but actually contain added sugar, palm oil, or various emulsifiers. The golden rule when choosing is simple: the ingredients list of a quality nut butter should ideally contain just one ingredient — the nuts themselves. Perhaps a pinch of salt. Nothing more. Such butters are somewhat more expensive and their consistency tends to be less homogeneous, but their nutritional value is incomparably higher.
As an alternative to peanut butter, almond butter is well worth trying — it offers a higher content of calcium and vitamin E — or tahini, a paste made from sesame seeds, which is an excellent source of calcium and lends the drink a slightly nutty, earthy flavour. Each variation transforms the resulting drink somewhat — both in terms of taste and nutrition.
The renowned American nutritional adviser and author Michael Pollan put it simply: "Eat food. Not too much. Mostly plants." A homemade protein drink made from oats and nut butter fulfils this philosophy almost perfectly — it is real food made from recognisable ingredients, without unnecessary industrial processing.
It is also worth mentioning the ecological dimension of the matter. The production of plant-based protein sources such as oats or nuts has a significantly lower carbon footprint than the production of animal proteins. A study published in the academic journal Science in 2018 showed that switching to a plant-based diet can reduce an individual's food-related carbon footprint by up to 73 percent. Anyone who reaches for a homemade plant-based drink instead of industrially produced whey protein is therefore doing good not only for their body, but for the planet as well.
Another practical aspect is economic accessibility. A kilogram of quality oats costs approximately 40–80 Czech crowns, and a jar of quality nut butter costs 150–300 crowns. From these ingredients, dozens of portions can be prepared. Compared to commercial protein supplements, where a single package can cost several hundred to a thousand crowns and often contains questionable additives, this is a significantly more advantageous choice — both for the wallet and for one's health.
For those who wish to enrich the drink with additional nutrients, there is a wide range of natural additions. A teaspoon of ground flaxseeds adds omega-3 fatty acids. A handful of spinach or kale increases the iron and B vitamin content, while being virtually undetectable in the finished drink. Cocoa adds magnesium and antioxidants. Cinnamon not only adds flavour but also helps regulate blood sugar levels. The possibilities are almost limitless, and everyone can tailor the drink precisely to their needs and tastes.
It is also worth mentioning who such a drink is particularly suited for. Athletes will appreciate the quick replenishment of energy and protein after training. People who don't have time to prepare a hot breakfast in the morning can make it the evening before and simply take it out of the fridge in the morning. Vegetarians and vegans will find in it a complete source of plant-based protein. Older adults who have difficulty with appetite or chewing solid foods will appreciate its easy digestibility and nutritional density. And children? They typically love it — especially in the version with banana, cocoa, and a little honey.
A homemade protein drink made from oats and nut butter is not a revolutionary invention or the result of the latest research. It is a return to what has always worked — to simple, natural ingredients that give the body exactly what it needs. At a time when shop shelves are full of products with complex names and even more complex ingredient lists, that is actually quite a refreshing message: sometimes the best solution is also the simplest one.
