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The purpose of this study is to assess effects of Docosahexaenoic Acid (DHA) as an add-on novel supplement on quality of life, cognitive function, craving and psychosocial factors in heavy cigarette smokers. In humans, no previous randomized, double blind controlled study has been conducted to evaluate these effects. The aim of the study is to 1. Test Docosahexaenoic Acid (DHA) beneficial effects on objective clinical indicators of cognitive function (choice reaction time, decision making, impulsivity, facial recognition) in smokers 2. Improvement of quality of life, cigarette craving, psychosocial factors and self-perceptions in smokers treated with DHA supplement
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| I. DHA | Active Comparator | Oral ingestion 5 tablets DHA + EPA (daily ingestion DHA 2040 mg and EPA 2710 mg)- (Omega 3 - 950,the Solgar Pharmaceutical Co., Israel). |
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| II. Placebo | Placebo Comparator | Oral ingestion of 5 tablets containing the following: gelatin,glycerine,water and soy oil made by the Solgar Pharmaceutical Co., Israel |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| DHA | Dietary Supplement | DHA ingested orally by heavy smokers |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Reduction in smoking urges and craving | Reduction in smoking urges and craving to be measured by the following: smoking urges and craving scales; choice reaction time, impulsivity computerized test, quality of life questionnaire, depression inventory, general health questionnaire, scale of perceived social support, facial expression task, self-esteem diary | One and a half years |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Bar Ilan University | Ramat Gan | 52900 | Israel |
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| Oral ingestion of 5 placebo tablets |
| Dietary Supplement |
Oral ingestion of 5 tablets containing the following: gelatin,glycerine,water and soy oil made by the Solgar Pharmaceutical Co., Israel |
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