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A randomised study in young subjects of the effects of eating extra fruit or nuts on periodontal inflammation
Region Östergötland, Public Dental Health Care, Center for Oral Rehabilitation Linköping.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences.
Linköping University, Department of Medical and Health Sciences. Linköping University, Faculty of Medicine and Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Occupational and Environmental Medicine Center.
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2018 (English)In: BDJ open, ISSN 2056-807X, Vol. 3, article id 17022Article in journal (Refereed) Published
Abstract [en]

Objectives/Aims:

Fruit is often advocated as a healthy source of nutrients and vitamins. However, the high contents of sugars in many fruits could potentially counteract positive effects on the teeth.

Materials and methods:

We recruited 30 healthy non-obese participants who were randomised to either supplement their diet with extra fruits or nuts, each at +7 kcal/kg body weight/day, for 2 months.

Results:

Fructose intake increased from 9.1±6.0 to 25.6±9.6 g/day, P<0.0001, in the fruit group and was reduced from 12.4±5.7 to 6.5±5.3 g/day, P=0.007, in the nut group. Serum-vitamin C increased in both groups (fruit: P=0.017; nuts: P=0.009). α-Tocopherol/cholesterol ratio increased in the fruit group (P=0.0033) while β-carotene/cholesterol decreased in the nut group (P<0.0001). The amount of subjects with probing pocket depths ⩾4 mm in the fruit group was reduced (P=0.045) according to blinded examinations, and the difference in the changes in probing pockets ⩾4 mm was also statistically significant between the food groups (P=0.010).

Conclusion:

A large increase of fruit intake, compared with nuts, had a favourable effect on periodontal status in some respects, despite the high sugar contents. To search for potential protective micronutrients in fruit that protect the teeth could be an aim for further research.

Place, publisher, year, edition, pages
Nature Publishing Group, 2018. Vol. 3, article id 17022
National Category
Nutrition and Dietetics
Identifiers
URN: urn:nbn:se:liu:diva-152523DOI: 10.1038/bdjopen.2017.22PubMedID: 29607092OAI: oai:DiVA.org:liu-152523DiVA, id: diva2:1299655
Available from: 2019-03-28 Created: 2019-03-28 Last updated: 2019-10-07Bibliographically approved

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Ström, EdvinLeanderson, PerGuldbrand, HansNyström, Fredrik H.

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Fridell, SaraStröm, EdvinAgebratt, ChristianLeanderson, PerGuldbrand, HansNyström, Fredrik H.
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Center for Oral Rehabilitation LinköpingDivision of Cardiovascular MedicineFaculty of Medicine and Health SciencesDepartment of Medical and Health SciencesDivision of Neuro and Inflammation ScienceOccupational and Environmental Medicine Center"Primary Health Care in Motala"Department of Endocrinology
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