Concentrations of PCDD/Fs and DL-PCBs were determined to evaluate the human body burden of dioxin-like compounds.

Background: Higher dietary acid load (DAL) was considered to be associated with an elevated risk of hypertension, while related data from mainland China remains scarce and incomplete. We aim to evaluate the association between DAL and the risk of hypertension among adults from South China. Methods: We conducted a nutrition and health survey in Guangdong Province located in southern China from 2015 to 2017. A four-stage probability sampling method was utilized to select representative samples of citizens aged ≥18 years old. DAL was assessed by potential renal acid load (PRAL) and net endogenous acid production (NEAP). Participants were divided to 4 groups (Q1-Q4) according to the quartile points of PRAL or NEAP distributions. Generalized linear mixed effects models were applied to evaluate the association between DAL and the risk of hypertension. Results: A total of 3501 individuals were eligible for this study and 45.9% was male participants. Hypertension rate was 30.7%. A higher PRAL was associated with higher prevalence rate of hypertension among the male (P-trend = 0.03). OR for Q2 was 1.34 (95%CI, 0.94–1.91), Q3 was 1.53 (95%CI = 1.08, 2.16) and Q4 was 1.51 (95%CI, 1.08–2.16) among the male. However, as for total participants, the female, the participants with ≤55 years or participants with > 55 years, the associations were lack of significance. With respect to association between NEAP and hypertension, non-significant results were identified. Conclusions: The current study indicated male hypertension was associated with higher PRAL, while given to this study was cross-sectional design, further studies are warranted to verify the association.

Background: Over time, there have been significant changes in the dietary patterns of the Chinese population with the emergence of ultra-processed foods (UPFs). Methods: To ascertain the changes in UPFs intake among adults in southern China, over the past two decades, the study included residents aged 18 years and older who participated in the China National Nutrition Surveys in Guangdong province in 2002, 2012, and 2022. Dietary intake data were collected via three-day 24 h dietary recalls and weighing household foods and condiments. The recorded dietary data were classified according to the NOVA classification system, and the percentage of total energy derived from each food group was calculated. Results: From 2002 to 2022, there was a notable increase in the consumption of UPFs among adults in Guangdong Province, with the percentage of UPFs intake rising from 0.88% to 8.52% (p-value < 0.001). This growth was especially pronounced among specific population groups, including the young, the better educated, and those living in highly urbanized areas. The largest increase in energy intake from UPFs was observed among students, from 0.42% to 17.26% (p-value < 0.001). The nutrient contents of UPFs in Guangdong in 2022 were found to contain a markedly higher calculated percentage of calories provided by carbohydrates in comparison to minimally processed foods (56.6% vs. 43.8%) as well as in sodium (749 mg/100 kcal vs. 29 mg/100 kcal). Conclusions: Given the increasing consumption of UPFs and the growing evidence linking these products to chronic diseases, it is important to promote healthy food intake and balanced diets through active nutritional education campaigns to prevent potential health risks that may arise.

The purpose of this study was to assess the dietary consumption patterns of traditional Chinese medicine (TCM) among the population in Guangdong province. Employing a cross‐sectional design, the survey was conducted from 2019 to 2021 to examine the inclusion of TCM in the diet of participants in Guangdong province. Information regarding consumption of TCM during the preceding 12 months was collected using a food frequency questionnaire. The participant cohort comprised a total of 3031 participants, consisting of 1081 Cantonese, 967 Hakka, and 983 Teochew individuals. The survey included 42 TCM, with consumption rates ranging from 2.6% to 47.3%. The top five TCM comprised Citri Reticulatae Pericarpium (47.3%), Lonicerae Japonicae Flos (47.0%), Codonopsis Radix (46.4%), Polygonati Odorati Rhizoma (43.1%), and Siraitiae Fructus (41.5%), along with Panacis Quinquefolii Radix (41.5%). These TCM possess recognized therapeutic properties within TCM for clearing heat, drying dampness, and detoxification. Within the top decile of 10 TCM, only Lonicerae Japonicae Flos was ubiquitous across all three sub‐populations. Nonetheless, 11 TCM from the top 20 and 17 TCM from the top 30 overlapped among the three sub‐populations. The study revealed substantial variability in the consumption rates of different TCM. Notably, those with traditional Chinese medicine effects of clearing heat, drying dampness, and detoxification exhibited higher consumption rates. Disparities in the consumption rates of these TCM were noted among the Cantonese, Hakka, and Teochew populations.