The phrase "although it is often assumed" is correct and usable in written English.
It can be used to introduce a statement that contrasts with a common belief or assumption.
Example: "Although it is often assumed that all birds can fly, there are several species that are flightless."
Alternatives: "even though many believe" or "despite common assumptions".
Although it is often assumed that large diversified institutional investors prefer to remain passive, this misstates their preferences.
Although it is often assumed that the Chinese invented wallpaper, there is no evidence that it was in general use in Asia any earlier than the time of its appearance in Europe.
The significance of the convention is not known, although it is often assumed that for the Greeks this kind of smile reflected a state of ideal health and well-being.
Although it is often assumed that internal conversion is responsible for transfer to S0 in AC, both recent experiments39 and theoretical evidence40 suggest S1/S0 conical intersections are too high in energy to provide a valid pathway at actinic UV energies.
Although it is often assumed that better accuracy values can be obtained if the number of neighbors is increased, this is not the case.
Strictly speaking, the term catalysis should not be used unless it can be shown that the number of product molecules produced per number of active sites on a substance (the turnover number) is greater than one [39]; this is difficult to do in practice, although it is often assumed to be true if there is no loss in the activity of the substance for an extended period of time [36].
Although it's often assumed that the domestication of cats began in Egypt, archaeology suggests that Mesopotamia was the place.
Although it's often assumed that people who resist the pressure to be ideal workers are primarily women with families, we have not encountered enormous gender differences in our research.
Although it was often assumed that the billions of cells in the brain have the same genome, other research suggested that the brain may harbor genetic diversity stemming from somatic mutations.
ABSTRACT: Although memory can be hazy at times, it is often assumed that memories of violent or otherwise stressful events are so well encoded that they are effectively indelible and that confidently retrieved memories are almost certainly accurate.
Although adaptive classifier ensembles have been applied for robust face matching, it is often assumed that the proportions of faces captured for target and non-target individuals are balanced, known a priori, and do not change over time.
