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Table 4 Change in preference or consumption of a product when a health-related claim was present

From: A systematic review, and meta-analyses, of the impact of health-related claims on dietary choices

First author (year) Outcome measure Product category Claim sub-type (nutrient/target - health relationship) Results Does it support the hypothesis?
Ares (2008) [25] Rating: willingness to try, 7-point Likert scale Yogurt NOF (antioxidants) −3.77% (−5.91%, −1.63%) Y + N
Ncon (fibre) -3.34% (−5.48%, −1.20%)
Ncon (fat) -6.80% (−8.94%), (−4.66%)
Milk desserts NOF (antioxidants) -2.98% (−5.20%, −0.75%)
Ncon (fibre) -2.77% (−5.00%, −0.55%)
Ncon (fat) -1.81% (−4.04%, 0.41%)
Bread NOF (antioxidants) -4.03% (−6.32%, −1.74%)
Ncon (fibre) -0.70% (−2.99%, 1.59%)
Ncon (fat) -4.21% (−6.50%, −1.92%)
Mayonnaise NOF (antioxidants) -12.12% (−14.63, −9.60)
Ncon (fibre) -19.86% (−22.37, −17.34)
Ncon (fat) −1.01% (−3.52%, 1.51%)
Ares (2009) [26] Rating: willingness to try, 7-point Likert scale Milk dessert NOF (fibre - calcium absorption + beneficial gut bacteria),(antioxidant - fat oxidation + cellular health) +29.37% HC: Y
NC: N
RDR: (fibre - cancer), (antioxidants - heart disease + cancer) +31.47%
Ncon (fibre, b-glucans) +16.29%
Ncon (antioxidant, flavoids) +14.06%
Belei (2012) [31] Mean amount consumed Chocolate Ncon (fat) +38.4% (25.0%, 51.7%) Y + N
NOF (cacao - antioxidant) -34.3% (−41.3%, −27.3%)
Replication study:  
Ncon (fat) + 43.4% (18.5%, 68.2%)
NOF (cacao - antioxidant) -47.2% (−54.4%, −39.9%)
Ncon (low cholesterol −49.5% (−54.6%, −44.4%)
Carbonneau (2015) [32] 10 day mean energy (kcal) intake . Ncon (fat) +3.4% (−2.1%, 8.9%) Y
Ncon (energy) + 3.9% (−1.9, 9.8%)
Coleman (2014) [34] Rating: purchase intent, 5-point Likert scale White bread. HRIC or GHC/Prebiotic +17.6% (11.2%, 24.0%) Y
NOF (satiety) + 1.2% (−5.7%, 8.1%)
NOF (weight) + 14.9% (6.4%, 23.4%)
RDR (cancer) + 13.3% (5.3%, 21.4%)
NOF (minerals) + 22.0% (15.1%, 28.9%)
Kiesel (2013) [39] Sales over 4 weeks for pre-exposure and exposure period. Microwave popcorn. NUTRIENT CLAIMS +16.1% (12.0%, 20.2%) Y
Ncon (energy) + 25.4%
Ncon (fat) 14.6%  + 3.2%
Ncon (fat –FDA)  
Koenigstorfer (2013) [40] Mean amount consumed Savoury snack (trail mix) GHC (Fitness) +149% (110.9%, 186.2%) Y
N serving themselves:    OR 4.4 (3.6, 5.1)
Kozup (2003) [41] Rating: purchase intent, 7-point Likert scale Frozen ready meal (lasagne) RDR (saturated fat + cholesterol - CHD), Logo (Heart healthy - novel logo with description provided) 15% Y
Lin (2015) [43] Purchase intent rating Tea drink NOF (weight loss) +10.22% (−20.9%, 41.4%) Y
Roberto (2012) [52] Rating: purchase intent, 9-point Likert scale Breakfast cereal Logo: Servings per pack +16.3% (−2.7%, 35.4%) Y + N
Logo: Serving size + 23.7% (3.8%, 43.6%)
Buying for children  
Logo: Servings per pack +20.4% (0.8%, 40.1%)
Logo: Serving size + 16.6% (−2.3%, 35.4%)
Logo: Servings per pack -0.3% (−13.9%, 13.3%)
Meant amount consumed: Total cereal + milk eaten (grams) Cereal poured (grams)   Logo: Serving size + 5.8% (−9.4%, 21.0%)
Steenhuis (2010) [53] Mean amount consumed Chocolate mousse cake Logo (Choices) −7.4% (−21.7%, 6.9%) N
Wansink (2006) [14] Study 1: mean calories served Chocolate and granola. Ncon (fat) Study 1: +28.4% Y
Study 3: mean calories consumed    Study 3: +50.1%