Tuesday 17th April 2018

(6 years, 2 months ago)

Lords Chamber
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Baroness Neville-Rolfe Portrait Baroness Neville-Rolfe (Con)
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My Lords, this debate takes place at dinner time, which is an ideal time if I may say so. I congratulate the noble Baroness, Lady Walmsley, on gathering us all together to discuss this important area.

Obesity is a subject that I have grappled with since the early 2000s when, as a Tesco employee, I sat on the foresight obesity panel under the auspices of the business department and its Government Office for Science. This was in an era when, on the positive side, serious research and objective facts generally ruled in public policy. On the negative side, we came up with a report the most striking output of which was a vast spaghetti-style map—which I have with me if any noble Lords would like to see it afterwards. It mapped the causes and avenues of obesity, but it was so complex that it defeated the system and, perhaps as a result, gathered minimal attention.

I made a contribution later with colleagues at Tesco by introducing workplace initiatives such as free fruit and Race for Life—the noble Lord, Lord Addington, is right that mass sport is definitely a positive—and by pioneering traffic-light labels on food packaging. Indeed, broadly the same system was eventually adopted on a national basis by the then Secretary of State, my noble friend Lord Lansley. These labels are used for calorie counting, for avoiding sugar if you are diabetic, for keeping down fat if you have coronary risk and for encouraging manufacturers to reduce salt. I would be interested to hear whether the Minister knows of any evidence of the impact of this traffic-light measure, especially on the vital younger age groups that we are talking about today.

I do not want to go over the ground that others have already covered, but want to make a scientific point and a moral point. On the science of diet, there appears to be more disagreement than one might expect. Too many calories should obviously be avoided, but the relative merits, or demerits, of fat and carbohydrates seem still to be a matter of surprising disagreement—I was interested in what my noble friend Lord McColl said about low fat and sugar. My hunch as a past fan of Elizabeth David is that there is a lot to be said for the Mediterranean diet; that is, lots of fruit and vegetables, of vegetable oil and of fish. However, it would be helpful to be certain about it. These disagreements among experts are not helpful for progress.

My scientific point concerns another area, sleep, which, as it happens, did not appear specifically on our huge obesity map in 2007. There have been some serious advances in the science of sleep in recent years, but the vital point is that there is strong emerging evidence that poor, disturbed or insufficient sleep is a significant contributor to obesity, even if the precise mechanism is imperfectly understood. There are various ways to improve sleep, such as by avoiding white light and wearing a Fitbit-type device—which allows you to monitor your sleep pattern on your phone and go to bed at a more consistent time, apparently a key to success. More publicity about the advantages of better sleep patterns for weight reduction could help many who struggle with weight problems.

We have moved from a world where many people were short of food to one where, outside the most unfortunate countries such as North Korea or some in Africa, people have access to more food than is good for them. This has its own challenges. My moral point is that, whatever the scientific facts, obesity will not be tackled successfully unless those at risk can demonstrate self-control. It is no use blaming others, food manufacturers or the fears that prevent children walking to school, as I did every day from the age of five—it was quite a long way, for our own failings. The main fault, dear Brutus, lies not in others but in ourselves. As far as young people are concerned, we need to convince them that self-control is needed to avoid obesity—and for many other desirable outcomes. This is not a convenient conclusion—it is so much easier to blame others for our own shortcomings—but it is no less valid for that and is very important in tackling the obesity epidemic among our children and young people today.