Dietary advice improves blood sugar control for recently diagnosed type 2 diabetes patients

June 28, 2011, University of Bristol
Dietary advice improves blood sugar control for recently diagnosed type 2 diabetes patients

(Medical Xpress) -- New research from academics at the University of Bristol shows that, in patients with recently diagnosed type 2 diabetes, 6.5 hours of additional dietary advice sessions leads to improvement in blood sugar control compared with patients who receive usual care.  However, increased activity conferred no additional benefit when combined with the diet intervention.

The study, published online first by The Lancet, is led by Dr Rob Andrews, Consultant Senior Lecturer in Diabetes and Endocrinology in the University of Bristol’s School of Clinical Sciences.

The study assessed 593 adults aged 30—80 years in whom had been diagnosed five to eight months earlier.  Of these, 99 were assigned to usual care, 248 to diet advice only, and 246 to diet advice plus exercise.  Usual care received an initial dietary consultation plus follow-up every six months.  Diet-only group patients were given a dietary consultation every three months with additional nurse support each month. Diet and exercise patients received the same as diet only patients but were also asked to do 30 minutes of brisk walking five times a week (with activity assessed by pedometers that showed good adherence).

The researchers found that in the usual care group, control had worsened, with mean HbA1c (a method of assessing ) levels increasing from 6.72per cent to 6.86 per cent over six months, before falling back to 6.81 per cent at 12 months.  In the diet advice group, HbA1c fell from a mean 6.64 per cent pre-intervention to 6.57 per cent at six months and 6.55 per cent at 12 months.  Exercise did not confer additional benefit on top of the diet advice, apart from in those patients with the highest HbA1c, insulin-resistance, or body-mass index at baseline.

Dr Andrews said: “These findings suggest that intervention at this early stage should focus on improving diet, since the additional cost of training health-care workers to promote activity might not be justified.”

The researchers add there could be a number of reasons for the apparent lack of effect of increased activity: that it was not intense enough, or that it was too early in the disease process for exercise to show an effect.

It is also possible that those in the diet and exercise group modified their behaviour and diluted the effect of both interventions, for example, rewarding themselves with extra food due to increased exercise.

Dr Andrews concluded: “Further research is needed to clarify whether more intensive or different types of activity, or activity advice offered at a later stage of will add benefits to diet interventions, or whether benefits of activity interventions will become more apparent after one year.”

Explore further: Structured exercise training associated with improved glycemic control for patients with diabetes

More information: Diet or diet plus physical activity versus usual care in patients with newly diagnosed type 2 diabetes: the Early ACTID randomised controlled trial; Dr RC Andrews PhD, AR Cooper PhD, AA Montgomery PhD, AJ Norcross MSc, Prof TJ Peters PhD, Prof DJ Sharp PhD, N Jackson BSc, K Fitzsimons PhD, J Bright MBA, K Coulman MSc, CY England BSc, J Gorton BSc, A McLenaghan RN, E Paxton BSc, A Polet BSc, C Thompson Dip HE, Prof CM Dayan FRCP. The Lancet, Early Online Publication, 25 June 2011 … (11)60442-X/abstract

Related Stories

Structured exercise training associated with improved glycemic control for patients with diabetes

May 3, 2011
Implementing structured exercise training, including aerobic, resistance or both, was associated with a greater reduction in hemoglobin A1c levels (a marker of glucose control) for patients with diabetes compared to patients ...

Recommended for you

Placental accumulation of flame retardant chemical alters serotonin production in rats

January 22, 2018
A North Carolina State University-led research team has shown a connection between exposure to a widely used flame retardant chemical mixture and disruption of normal placental function in rats, leading to altered production ...

Marijuana use does not lower chances of getting pregnant

January 22, 2018
Marijuana use—by either men or women—does not appear to lower a couple's chances of getting pregnant, according to a new study led by Boston University School of Public Health (BUSPH) researchers.

Americans are getting more sleep

January 19, 2018
Although more than one in three Americans still don't get enough sleep, a new analysis shows first signs of success in the fight for more shut eye. According to data from 181,335 respondents aged 15 and older who participated ...

Wine is good for you—to a point

January 18, 2018
The Mediterranean diet has become synonymous with healthy eating, but there's one thing in it that stands out: It's cool to drink wine.

Sleep better, lose weight?

January 17, 2018
(HealthDay)—Sleeplessness could cost you when it's time to stand on your bathroom scale, a new British study suggests.

Who uses phone apps to track sleep habits? Mostly the healthy and wealthy in US

January 16, 2018
The profile of most Americans who use popular mobile phone apps that track sleep habits is that they are relatively affluent, claim to eat well, and say they are in good health, even if some of them tend to smoke.


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.