2 research outputs found

    Alternate Day Fasting Combined with A Low Carbohydrate Diet for Weight Loss and Weight Maintenance

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    This study investigated the effects of alternate day fasting (ADF) combined with a low carbohydrate diet on body weight and metabolic disease risk factors in adults with obesity. Changes in appetite were also evaluated. ADF regimens include a “feast day” where food is consumed ad-libitum over 24 h, alternated with a “fast day” where intake is limited to ~600 kcal over 24 h. Subjects with obesity (n = 31) participated in an ADF diet (600 kcal “fast day” alternated with an ad libitum “feast day”) with a low carbohydrate background diet (30% carbohydrates, 35% protein, 35% fat). The 6-month trial consisted of a 3-month weight loss period followed by a 3-month weight maintenance period. Results from this study show that body weight decreased by 5.5% during the weight-loss period (month 0-3) and remained stable during the weight maintenance period (month 4-6). Net weight loss by month 6 was 6.3%. The ADF low carbohydrate diet produced significant reductions in fat mass, total cholesterol, LDL cholesterol, systolic blood pressure, and fasting insulin. However, lean mass, visceral fat mass, HDL cholesterol, triglycerides, diastolic blood pressure, heart rate, fasting glucose, insulin resistance (measured via HOMA-IR), and HbA1c remained unchanged. Moreover, subjective hunger and fullness did not change during the weight loss period, or the weight maintenance period. These findings suggest that ADF combined with a low carbohydrate diet is effective for weight loss, weight maintenance, and improving certain metabolic disease risk factors such as LDL cholesterol, blood pressure, and fasting insulin. This diet, however, has little impact on subjective appetite. While these preliminary findings are promising, they still require confirmation by a larger‐scale randomized control trial

    Image_1_Validation and results of a novel survey assessing decisional balance for a whole food plant-based diet among US adults.pdf

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    ImportanceConsuming a whole food plant-based diet (WFPBD) is a promising, low-risk strategy for reducing risk of prevalent chronic disease and certain cancers, with synergistic benefits for climate and environment. However, few US adults report consuming a WFPBD. Understanding the reasons for this inconsistency is important for developing and implementing interventions for promoting a WFPBD. However, no research to elucidate decisional balance driving current consumption patterns in the US exists.ObjectiveThis research aims to validate an online survey to assess decisional balance for the consumption of a WFPBD, describe attitudes and beliefs toward adopting a WFPBD, and evaluate socio-demographic differences in decisional balance for consuming a WFPBD among a convenience sample of US adults.DesignOnline cross-sectional data collection followed by confirmatory factor analysis (CFA), validation of internal consistency, and examination of invariance across socio-demographic variables. Sensitivity analysis of full vs. truncated survey to predict self-reported dietary patterns and consumption behaviors were evaluated. Results of the survey and significant differences by socio-demographics were assessed.SettingOnline survey based on previous research, created via Qualtrics, and administered through MTurk.ParticipantsA total of 412 US adults, majority female (66%), White (75%), 30–60 years old (54%), ≥ Bachelor’s degree (85%), and earning ≥ $45K (68%).Main outcomes and measuresFactor loadings, covariance of survey items, associations with self-reported dietary pattern and consumption measures, and differences in pros, cons, and decisional balance across socio-demographic variables.ResultsCFA reduced the survey from 49 to 12 items and demonstrated invariance across socio-demographic variables. Pros and cons varied inversely and significantly (cov = –0.59), as expected. Cronbach’s α ’s for subscales in the final, reduced model were high (>0.80). Pros, cons, and decisional balance in both the full and the reduced model were significantly (p Conclusion and relevanceOur analyses indicate the WFPBD Survey is a parsimonious and psychometrically sound instrument for evaluation of decisional balance to consume a WFPBD diet among our sample of US adults. These results may be instrumental for development and deployment of interventions intended to promote consumption of a WFPBD in the US.</p
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