Macadamia flour

Macadamia flour is simply ground macadamia nuts or the milled presscake left after oil extraction. The nut’s fat is mostly monounsaturated (oleic and palmitoleic acids), and the oil naturally carries vitamin E compounds that help protect those fats from oxidation. Nutrient databases show macadamias are low in digestible carbohydrate, which underpins their low glycemic impact compared with most grain flours. When the presscake is further defatted, protein concentration increases and residual fat drops, creating a flour with very different macros than full‑fat meal. Processing choices matter. Mechanical pressing tends to better preserve antioxidants in the remaining material, while solvent extraction (commonly ethanol or isopropanol for macadamia) can remove more oil but may also change the antioxidant profile of the cake used for flour. These methods are standard in the food industry and use food‑grade solvents, but they lead to products that vary in fat, protein, and antioxidant content. For consumers, the practical takeaway is to read labels carefully, note whether the flour is full‑fat or defatted, and keep portions modest because the ingredient is energy‑dense.