Voedingsadvies El MondoResearch Question:
Eating legumes lowers the blood sugar levels in people with or without diabetes?
Study Design:
This overview article contained 41 Rcts. There was a large heterogeneity between the studies.
Results and conclusions:
The researchers found in 11 Rcts that eating legumes the standardized mean difference of the fasting blood sugar significantly with 0.82 [95% CI =-1.36 to-0.27] reduced. Significant is, there is a link at a 95% reliability.
The researchers found in 11 Rcts that eating legumes the standardized mean difference of the insulin levels significantly with 0.49 [95% CI =-0.93 to-0.04] reduced.
The researchers found in 19 Rcts that eating legumes, as part of a low GI Diet the standardized mean difference of the HbA1c levels significantly with 0.28 [95% CI =-0.49 to-0.14] reduced.
The researchers found in 11 Rcts that eating legumes, as part of a high-fiber diet the standardized mean difference of the fasting blood sugar significantly with 0.32 [95% CI =-0.49 to-0.15] reduced.
The researchers found in 11 Rcts that eating legumes, as part of a high-fiber diet the standardized mean difference of the HbA1c levels significantly with 0.27 [95% CI =-0.45 to-0.09] reduced.
The researchers concluded that eating legumes alone or as part of a low GI Diet or high fiber diet, the blood sugar levels in people with or without diabetes possible improved. Possible because there was a large heterogeneity between the studies.
Original title:
Effect of non-oil-seed pulses on glycaemic control: a systematic review and meta-analysis of randomised controlled experimental trials in people with and without diabetes by Sievenpiper JL, Kendall CW, Jenkins DJ, [...].
Link:
http://www.ncbi.nlm.nih.gov/pubmed/19526214
Additional information about El Mondo:
By a large heterogeneity between the studies, there is a comparison of apples to oranges. To be a reliable conclusion can be drawn, the overview article free of heterogeneity between the studies and be free of publication bias. Publication bias occur when studies with undesirable results not be published.
A low GI Diet has a GI number of 55 or below.
A high-fiber diet contains at least 1.5 grams of fiber per 100 kcal.