Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Effect of Daily Ingestion of Walnuts for 2 Years on Age-related Cognitive Decline and Macular Degeneration in Healthy Elderly Subjects: A Randomized, Single Blind, Dual Center, Controlled Trial
Brief Summary: This will be a systematic investigation of the role of walnuts in preventing or slowing age related cognitive decline and age related macular degeneration. 700 subjects will be recruited between 2 sites, Loma Linda University in California, USA and Hospital Clinic in Barcelona, Spain. Participants will be randomly assigned to either the walnut group or the control group for a 2 year intervention. Baseline and annual data will be collected and analyzed.


Options:
A: Arm Label: Healthy Choices; Type: OTHER; Interventions: Behavioral: Healthy Choices | Arm Label: Diet Substitution A; Type: EXPERIMENTAL; Interventions: Behavioral: Dietary substitution A | Arm Label: Diet Substitution B; Type: EXPERIMENTAL; Interventions: Behavioral: Dietary Substitution B | Intervention Type: BEHAVIORAL; Name: Dietary substitution A; Assigned to Arm(s): Diet Substitution A | Intervention Type: BEHAVIORAL; Name: Dietary Substitution B; Assigned to Arm(s): Diet Substitution B | Intervention Type: BEHAVIORAL; Name: Healthy Choices; Assigned to Arm(s): Healthy Choices
B: Arm Label: Vegan Diet; Type: EXPERIMENTAL; Interventions: Behavioral: Dietary Intervention Meetings, Behavioral: Physical Activity, Behavioral: Podcasts/Mailings | Arm Label: Omnivorous (Omni) Diet; Type: EXPERIMENTAL; Interventions: Behavioral: Dietary Intervention Meetings, Behavioral: Physical Activity, Behavioral: Podcasts/Mailings | Intervention Type: BEHAVIORAL; Name: Dietary Intervention Meetings; Assigned to Arm(s): Omnivorous (Omni) Diet, Vegan Diet | Intervention Type: BEHAVIORAL; Name: Physical Activity; Assigned to Arm(s): Omnivorous (Omni) Diet, Vegan Diet | Intervention Type: BEHAVIORAL; Name: Podcasts/Mailings; Assigned to Arm(s): Omnivorous (Omni) Diet, Vegan Diet
C: Arm Label: Walnut group; Type: ACTIVE_COMPARATOR; Interventions: Dietary Supplement: Walnuts | Arm Label: Control group; Type: ACTIVE_COMPARATOR; Interventions: Other: habitual diet | Intervention Type: DIETARY_SUPPLEMENT; Name: Walnuts; Assigned to Arm(s): Walnut group | Intervention Type: OTHER; Name: habitual diet; Assigned to Arm(s): Control group
D: Arm Label: Regular beverages; Type: ACTIVE_COMPARATOR; Interventions: Other: 710 ml of regular soft drinks, taken daily for 10 weeks | Arm Label: Diet beverages; Type: EXPERIMENTAL; Interventions: Other: 710 ml of diet soft drinks, taken daily for 10 weeks | Arm Label: Stevia beverages; Type: EXPERIMENTAL; Interventions: Other: 710 ml of stevia-sweetened soft drinks, taken daily for 10 weeks | Intervention Type: OTHER; Name: 710 ml of regular soft drinks, taken daily for 10 weeks; Assigned to Arm(s): Regular beverages | Intervention Type: OTHER; Name: 710 ml of diet soft drinks, taken daily for 10 weeks; Assigned to Arm(s): Diet beverages | Intervention Type: OTHER; Name: 710 ml of stevia-sweetened soft drinks, taken daily for 10 weeks; Assigned to Arm(s): Stevia beverages

Answer: C