Margreet R Olthof
Biographic Data
| ID | 5458567 |
|---|---|
| NAME | Margreet R Olthof |
| GIVEN NAMES | Margreet R |
| FAMILY NAME | Olthof |
| SIGNATURE | OLTHOF M R |
| AFFILIATIONS | Vrije Universiteit Amsterdam |
| VERIFIED | No |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 8 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 0 |
Do financial constraint and perceived stress modify the effects of food tax schemes on food purchases: Moderation analyses in a virtual supermarket experiment
Objective: To investigate whether financial constraint and perceived stress modify the effects of food-related taxes on the healthiness of food purchases. Design: Moderation analyses were conducted with data from a trial where participants were randomly exposed to: a control condition with regular food prices, an sugar-sweetened beverage (SSB) tax condition with a two-tiered levy on the sugar content in SSB (5–8 g/100 ml: €0·21 per l and ≥ 8 g/10…
The effects of health-related food taxes on the environmental impact of consumer food purchases: Secondary analysis of data from a randomised controlled trial in a virtual supermarket
Objective: To measure the effects of health-related food taxes on the environmental impact of consumer food purchases in a virtual supermarket. Design: This is a secondary analysis of data from a randomised controlled trial in which participants were randomly assigned to a control condition with regular food prices ( n 152), an experimental condition with a sugar-sweetened beverage (SSB) tax ( n 131) or an experimental condition with a nutrient p…
Less meat in the shopping basket. The effect on meat purchases of higher prices, an information nudge and the combination: A randomised controlled trial
The trial was registered in the Netherlands Trial Register identifier NL8628 . Registered on 18/05/2020. ICTRP Search Portal (who.int) NTR (trialregister.nl)
The effects of a sugar-sweetened beverage tax and a nutrient profiling tax based on Nutri-Score on consumer food purchases in a virtual supermarket: A randomised controlled trial
Objective: To investigate the effects of a sugar-sweetened beverage (SSB) tax and a nutrient profiling tax on consumer food purchases in a virtual supermarket. Design: A randomised controlled trial was conducted with a control condition with regular food prices ( n 152), an SSB tax condition ( n 130) and a nutrient profiling tax condition based on Nutri-Score ( n 112). Participants completed a weekly grocery shop for their household. Primary outc…
Public acceptability of a sugar-sweetened beverage tax and its associated factors in the Netherlands
Objective: To investigate the level of public acceptability of a sugar-sweetened beverage (SSB) tax and its associated factors. Design: Participants completed an online self-administered questionnaire. Acceptability of an SSB tax was measured on a seven-point Likert scale ( strongly disagree to strongly agree ). Associations between acceptability and sociodemographic factors, weight status, SSB consumption and beliefs about effectiveness (e.g., ‘…
Association between pre-pregnancy weight status and maternal micronutrient status in early pregnancy
Objective Inadequate maternal micronutrient status during pregnancy can lead to short- and long-term health risks for mother and offspring. The present study investigated the association between pre-pregnancy weight status and micronutrient status during pregnancy. Design Maternal blood samples were collected during early pregnancy (median 13, interquartile range 12–15 weeks) and were assayed for serum folate, ferritin, Fe and vitamin B 12 . Regr…
Is the intake of sugar-containing beverages during adolescence related to adult weight status
Objective To investigate the relationship between the intake of sugar-containing beverages (SCB) at the age of 13 years and adult weight status 24–30 years later. Design A longitudinal study with 30 years of follow-up from adolescence (age 13 years in 1976) to adulthood (up to 2000 and 2006). Dietary intake was assessed through cross-check dietary history face-to-face interviews by a dietitian. Beverages were divided into two categories: (i) tota…
A Trial of Sugar-free or Sugar-Sweetened Beverages and Body Weight in Children
BACKGROUND: The consumption of beverages that contain sugar is associated with overweight, possibly because liquid sugars do not lead to a sense of satiety, so the consumption of other foods is not reduced. However, data are lacking to show that the replacement of sugar-containing beverages with noncaloric beverages diminishes weight gain. METHODS: We conducted an 18-month trial involving 641 primarily normal-weight children from 4 years 10 month…
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A Trial of Sugar-free or Sugar-Sweetened Beverages and Body Weight in Children
BACKGROUND: The consumption of beverages that contain sugar is associated with overweight, possibly because liquid sugars do not lead to a sense of satiety, so the consumption of other foods is not reduced. However, data are lacking to show that the replacement of sugar-containing beverages with noncaloric beverages diminishes weight gain. METHODS: We conducted an 18-month trial involving 641 primarily normal-weight children from 4 years 10 month…
Is the intake of sugar-containing beverages during adolescence related to adult weight status
Objective To investigate the relationship between the intake of sugar-containing beverages (SCB) at the age of 13 years and adult weight status 24–30 years later. Design A longitudinal study with 30 years of follow-up from adolescence (age 13 years in 1976) to adulthood (up to 2000 and 2006). Dietary intake was assessed through cross-check dietary history face-to-face interviews by a dietitian. Beverages were divided into two categories: (i) tota…
Association between pre-pregnancy weight status and maternal micronutrient status in early pregnancy
Objective Inadequate maternal micronutrient status during pregnancy can lead to short- and long-term health risks for mother and offspring. The present study investigated the association between pre-pregnancy weight status and micronutrient status during pregnancy. Design Maternal blood samples were collected during early pregnancy (median 13, interquartile range 12–15 weeks) and were assayed for serum folate, ferritin, Fe and vitamin B 12 . Regr…
Public acceptability of a sugar-sweetened beverage tax and its associated factors in the Netherlands
Objective: To investigate the level of public acceptability of a sugar-sweetened beverage (SSB) tax and its associated factors. Design: Participants completed an online self-administered questionnaire. Acceptability of an SSB tax was measured on a seven-point Likert scale ( strongly disagree to strongly agree ). Associations between acceptability and sociodemographic factors, weight status, SSB consumption and beliefs about effectiveness (e.g., ‘…
Less meat in the shopping basket. The effect on meat purchases of higher prices, an information nudge and the combination: A randomised controlled trial
The trial was registered in the Netherlands Trial Register identifier NL8628 . Registered on 18/05/2020. ICTRP Search Portal (who.int) NTR (trialregister.nl)
The effects of a sugar-sweetened beverage tax and a nutrient profiling tax based on Nutri-Score on consumer food purchases in a virtual supermarket: A randomised controlled trial
Objective: To investigate the effects of a sugar-sweetened beverage (SSB) tax and a nutrient profiling tax on consumer food purchases in a virtual supermarket. Design: A randomised controlled trial was conducted with a control condition with regular food prices ( n 152), an SSB tax condition ( n 130) and a nutrient profiling tax condition based on Nutri-Score ( n 112). Participants completed a weekly grocery shop for their household. Primary outc…
Do financial constraint and perceived stress modify the effects of food tax schemes on food purchases: Moderation analyses in a virtual supermarket experiment
Objective: To investigate whether financial constraint and perceived stress modify the effects of food-related taxes on the healthiness of food purchases. Design: Moderation analyses were conducted with data from a trial where participants were randomly exposed to: a control condition with regular food prices, an sugar-sweetened beverage (SSB) tax condition with a two-tiered levy on the sugar content in SSB (5–8 g/100 ml: €0·21 per l and ≥ 8 g/10…
The effects of health-related food taxes on the environmental impact of consumer food purchases: Secondary analysis of data from a randomised controlled trial in a virtual supermarket
Objective: To measure the effects of health-related food taxes on the environmental impact of consumer food purchases in a virtual supermarket. Design: This is a secondary analysis of data from a randomised controlled trial in which participants were randomly assigned to a control condition with regular food prices ( n 152), an experimental condition with a sugar-sweetened beverage (SSB) tax ( n 131) or an experimental condition with a nutrient p…
Medicine (7 works) · Obesity, Physical Activity, Diet (6 works) · Environmental health (4 works) · Obesity (4 works) · Biology (3 works) · Nutritional Studies and Diet (3 works) · Overweight (3 works) · Agriculture Sustainability and Environmental Impact (2 works) · Animal science (2 works) · Body mass index (2 works)