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. 2022 Aug 18;14(16):3402.
doi: 10.3390/nu14163402.

Dietary Supplement Use among Older Cancer Survivors: Socio-Demographic Associations, Supplement Types, Reasons for Use, and Cost

Harleen Kaur  1 , Teri Hoenemeyer  1 , Kelsey B Parrish  2 , Wendy Demark-Wahnefried  1   3
Affiliations

Dietary Supplement Use among Older Cancer Survivors: Socio-Demographic Associations, Supplement Types, Reasons for Use, and Cost

Harleen Kaur et al. Nutrients. .

Abstract

Most Americans take dietary supplements (DSs) and use is even higher among cancer survivors. This secondary analysis seeks to identify types, reasons, and costs of supplements used by 367 older cancer survivors enrolled in the Harvest for Health vegetable gardening trial and evaluate associations between supplement intake and medical/socio-demographic factors. Descriptive statistics were used to identify supplement type and reasons for use. Average market price was used to estimate cost. Fifty-nine percent of the sample reported supplement use. Female (OR 2.11, 95% CI 1.35-3.30), non-Hispanic White (OR 1.77, 95% CI 1.05-3.0), and breast and gynecological survivors (OR 1.57, 1.03-2.38) were significantly more likely to report DS use compared to males, minorities, and survivors of other cancers. Use of vitamins (39%), multivitamins (23%), and minerals (12%) were the most prevalent. Commonly reported reasons for supplement use were to improve general health (47%) or treat medical conditions (39%) and cancer-related symptoms (12%). DSs daily costs ranged from USD 0.02 to 19.81, with a mean of USD 1.28 ± 1.74, a median of USD 0.78, and a mode of USD 0.34. DS use is prevalent among older cancer survivors, with overall health reported as the leading reason for use. Out-of-pocket recurrent costs can be substantial and underscore the need to promote a nutrient-rich diet whenever possible in this vulnerable population.

Keywords: aging; cancer survivors; supplements; vitamins.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Types of dietary supplements reported among older cancer survivor supplement users (n = 215).
Figure 2
Figure 2
Primary reasons reported for dietary supplement use among older cancer survivor supplement users (n = 215).
Figure 3
Figure 3
Sub-reasons of dietary supplement intake reported for (a) primary medical condition and (b) symptom control category among older cancer survivors (n = 215).
Figure 4
Figure 4
Distribution of supplement cost per day.
See this image and copyright information in PMC

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