2021 Fiscal Year Annual Research Report
Circadian eating patterns and their associations with chronic diseases in the general population.
| Project/Area Number |
19K20199
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| Research Institution | Aichi Medical University |
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Principal Investigator |
王 超辰 愛知医科大学, 医学部, 講師 (00758063) [Withdrawn]
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | chrononutrition / NDNS / nutritional epidemiology / latent class analysis / correspondence analysis |
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| Outline of Annual Research Achievements |
Our studies used the UK's nutrition survey data to understand the real-world food choices at different time in the day and the association with type 2 diabetes (T2D).
We identified low, moderate, high carbohydrate (CH) eaters in the adult population and estimated the associations between these eaters and T2D by survey-designed multivariable regression models. On average, low-CH eaters consumed the highest amount of total energy and had higher percentages of energy contributed by fat and alcohol, especially after 8 pm. Moderate CH-eaters consumed the lowest amount of total energy while their meals were eaten later in the day. High CH-eaters consumed most of their CH and energy earlier in the day and within the time slots of traditional mealtimes. Low-CH eaters had greater odds than high-CH eaters of having T2D in self-reported but not in previously undiagnosed diabetics.
Moreover, we used unsupervised learning techniques to understand how foods were chosen in the day of time. We identified relationships between foods and time and described how these associations may vary by T2D. We analyzed the contingency table which cross-classifying food groups with eating time slots by correspondence analysis (CA). CA biplots were generated to explore the associations between food groups and time of eating across diabetes strata. We found that foods consumed in the evening/night time tend to be highly processed, easily accessible, and rich in added sugar or saturated fat. Individuals with undiagnosed diabetes are more likely to consume unhealthy foods at night.
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