Use of dietary supplements by individuals with dementia - the caregivers' perspective.

Introduction: Due to their cognitive challenges, individuals with dementia, often rely on their caregivers for support with activities of daily living. Many of them use dietary supplements (DS) but are at risk of overdosing on DS due to forgetfulness. Moreover, DS may cause adverse events or interactions with prescription drugs (PD). This study aimed to explore the role of caregivers in managing DS use and to identify potential risks associated with its administration.

Methods: A cross-sectional survey among caregivers of individuals with dementia recruited from dementia organisations in North-Norway.

Results: Out of 163 caregivers invited to participate, 104 (64%) participated. Of those, 59 reported that the individual under their care used DS. Twenty-seven caregivers had assisted in DS administration. Eleven expressed concerns around the DS use, and 17 reported that the individual with dementia had previously made mistakes in its administration. Several caregivers did not know whether the individual with dementia used DS nor had difficulties taking DS correctly. Additionally, only 45 were aware that DS use could potentially be harmful. Regarding securing safe use of DS in this patient group, the respondents ranked general practitioners to be most responsible. Nearly 50% of those who had sought advice from health care professionals regarding DS use, were not satisfied with the response. A small sample size and heterogeneous study group must be taken into account when interpreting the results.

Conclusion: Caregivers were often involved in individuals with dementia's DS use and expressed a willingness to assume responsibility for ensuring safer use. However, several respondents were unaware of the general safety concerns related to DS use. Furthermore, communication with health care professionals regarding DS use, often failed to met the needs of these patients and their caregiver. Collectively, these conditions may impose a risk to individuals with dementia.