Whole grains one of the most important food groups for preventing type 2 diabetes

The proportion who developed type 2 diabetes was lowest in the group which reported the highest wholegrain consumption, and increased for each group which had eaten less wholegrain. In the group with the highest wholegrain intake, the diabetes risk was 34 percent lower for men, and 22 percent lower for women, than in the group with the lowest wholegrain intake.

“It is unusual to be able to investigate such a large range when it comes to how much wholegrain people eat,” says Rikard Landberg. “If you divided American participants into 4 groups, the group that ate the most wholegrain would be the same level as the group that ate the least wholegrain in Denmark. In Europe, Scandinavia eats the most, Spain and Italy the least.”

Additionally, the study was uncommonly large, with 55,000 participants, over a long time span — 15 years.

My source article is here and the study abstract can be found here.

 

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A Population-Based Study of the Bidirectional Association Between Obstructive Sleep Apnea and Type 2 Diabetes in Three Prospective U.S. Cohorts

CONCLUSIONS –  OSA is independently associated with an increased risk of diabetes, whereas insulin-treated diabetes is independently associated with a higher risk of OSA, particularly in women. Clinical awareness of this bidirectional association may improve prevention and treatment of both diseases. Future research aimed at elucidating the mechanisms that underlie each association may identify novel intervention targets.

Access the study here.

Risk of Type 2 Diabetes Among Lesbian, Bisexual, and Heterosexual Women: Findings From the Nurses’ Health Study II

CONCLUSIONS Findings indicate that LB women develop type 2 diabetes at younger ages than heterosexual women. Higher BMI in LB women is an important contributor to this disparity. Public health and clinical efforts to prevent, detect, and manage obesity and type 2 diabetes among LB women are warranted.

Source article here.

Vegan Diet Rapidly Improves Type 2 Diabetes Markers in Adults

The 16-week randomized controlled trial in 73 adults showed that participants who ate a diet of vegetables, grains, legumes, and fruits significantly improved their overall metabolic condition, say Hana Kahleova, MD, PhD, of the Physicians Committee for Responsible Medicine in Washington, DC, and colleagues.

Previous studies have shown that the prevalence of diabetes is 46% to 74% lower in people who eat a plant-based diet compared with meat lovers in the general population, according to background information in the article.

A vegan diet has also been shown to improve glycemic control in type 2 diabetes better than calorie-restricted, low-carbohydrate diets, the researchers note.

You can access the Medscape article here.

This is a link to the online abstract.

Reminder — Beer, wine and whiskey are vegan!

Taiwanese Vegetarians and Omnivores: Dietary Composition, Prevalence of Diabetes and IFG

Background

The diabetes epidemic in Asia and particularly in China emerged simultaneously with increased meat consumption and higher proportion of energy intake from animal protein and fat [1]. Compared with Westerners, Asians tend to incur diabetes at a younger age and at a lower body mass index (BMI), possibly due to genetic susceptibility in combination with environmental exposures [2]. Vegetarian diets have been associated with a lower prevalence [3] and incidence [4] of diabetes among Seventh day Adventists. Previous clinical trials have shown vegetarian diets improve glycemic control [5] and insulin sensitivity [6]. Although several small studies reported lower glucose level and better insulin sensitivity in Taiwanese vegetarians than omnivores [7][9], no study thus far has examined whether a vegetarian diet protects against diabetes in Chinese ethnic Asian population, a high risk population that may incur diabetes despite having a normal BMI value [2]. Moreover, Asian diets tend to be lower in meat and higher in plant foods compared with Western diet. It remains unknown whether a diet completely avoiding meat and fish would further extend the protective effect of a plant-based diet. In addition, most studies on Asian vegetarians tend to compare vegetarians from religious groups with omnivores from the general population [7]. Religious and spiritual practices (a main determinant of vegetarian dietary practice in Asia) may be associated with social and emotional support which may confound health outcomes [10], [11].

Conclusion

We found a strong protective association between Taiwanese vegetarian diet and diabetes/IFG, after controlling for various potential confounders and risk factors.

The full study report can be found here.

 

Type of vegetarian diet, obesity and diabetes in adult Indian population

…vegetarianism in India is associated with unique characteristics. It is usually a lifelong pattern and adherence crosses multiple generations; it generally comprises high consumption of whole grains, legumes, nuts and seeds and dairy with spices and seasonings unique to the Indian diet. Hence, the combination/or the pattern of vegetarian diet may yield different findings than similar studies conducted in the West and it is thus possible to assess dietary associations with chronic diseases which have been difficult in the West due to low frequency. This study uses data from the third National Family Health Survey (NFHS-3, 2005–06), a survey of 109,041 Indian households which collected information on a wide range of dietary, societal, lifestyle, and environmental determinants of morbidity and chronic ailments including diabetes [16]. The NFHS-3 provides a unique opportunity to examine associations between types of vegetarian diet and diabetes and obesity in a large, nationally representative sample.

In this large, nationally representative sample of Indian adults, lacto-, lacto-ovo and semi-vegetarian diets were associated with a lower likelihood of diabetes. These findings may assist in the development of interventions to address the growing burden of overweight/obesity and diabetes in Indian population. However, prospective studies with better measures of dietary intake and clinical measures of diabetes are needed to clarify this relationship.

Interesting study with limitations as noted by the researchers.  Go here for the full study report.

5 Classifications of Diabetes Proposed

  1. Severe autoimmune diabetes (formerly type 1 diabetes): affected 6% of patients in the derivation cohort; characteristics include early-onset disease, relatively low BMI, and GADA-positive
  2. Severe insulin-deficient diabetes: 18% of patients; GADA-negative but similar to cluster 1; lowest HOMA2-B scores
  3. Severe insulin-resistant diabetes: 15%; higher HOMA2-IR scores
  4. Mild obesity-related diabetes: 22%; obese, but not insulin resistant
  5. Mild age-related diabetes: 39%; older than other clusters, but largely similar to cluster 4

Quoted from  NEJM Journal Watch.