… continued from part 3 … Move your body

As we age we lose muscle which makes us less steady on our feet and more likely to fall. It can be a vicious cycle: you fall – you’re afraid of falling again so you’re less active – you lose muscle strength so you’re more likely to fall.

Less muscle also reduces our basal metabolic rate (BMR) – the rate we burn energy. The lower the BMR, the easier it is to gain fat. And the fat tends to go on around our stomach and internal organs, increasing the risk of diabetes, heart disease and high blood pressure. Not to mention ruining the look of our best clothes! We tend to accept this as a normal part of aging but researchers have observed that people who keep vigorously active throughout their life have a similar body composition and physiological function to younger adults. Even if you have been a couch potato, all is not lost. One study found that while people who had been physically active all their lives were about 60% less likely to have heart disease, even those lazy-bones who didn’t start serious exercise until after age 40 still had 55% less risk than those who stayed stuck in front of the television!

Regular exercise such as walking from the far side of the car park to the shops, taking the stairs instead of the lift, cycling with the grandchildren, swimming, dancing, golf, pilates and gardening have fantastic anti-aging effects. It helps reduce high blood pressure, increases the good HDL cholesterol that takes fat away from the arteries, gets the bowel moving, keeps joints mobile which helps with arthritis, keeps calcium in the bones so they stay strong, keeps muscles strong so you are less likely to fall, allows you to enjoy more food without gaining weight and gives a boost of endorphins – the body’s natural mood improver.

Be careful about the supplements you take

As our activity slows with age, we need less food but just as many nutrients – sometimes more. As well as vitamin D and B12, the B vitamins, especially B6 and folate are vital for a healthy brain, heart and immune system. Older people can also be low in calcium, zinc, potassium and magnesium.

Does this mean we need to rush for the supplements? It’s true that we need higher levels of nutrients to protect against degenerative conditions and disease than to simply avoid a deficiency. But food is always better and safer than a pill. Food provides all the nutrients we need – the ones we have discovered and those we don’t yet know about – in the perfect package for peak absorption. Supplements are sometimes in a different form from what occurs naturally so may not be as effective. Large doses of vitamins, minerals and so-called ‘natural’ herbal remedies can have potent, drug-like effects, especially in older bodies which are less able to handle it. They can also interfere with medication. For example, taking fish oil or high doses of vitamin E (over 400 IU) with aspirin or warfarin may cause excessive bleeding as they both reduce clotting. Taking just one vitamin or mineral can cause a deficiency in another e.g. zinc and copper. A multivitamin minimises this risk and many people take one as a form of nutritional insurance. But popping a multi-vitamin with your hot chips and jam sandwich doesn’t make a balanced diet!

An expert panel, set up by the National Institutes of Health, analyzed the research and concluded that there was a proven health benefit of supplements in just three cases: calcium and vitamin D to reduce bone fractures in post-menopausal women; vitamins C, E, beta-carotene, zinc and copper to reduce the risk of blindness in people with early signs of macular degeneration; and folic acid to prevent birth defects (not usually an issue for the over-65’s!)

Always let your doctor know if you are taking nutritional supplements, especially if you are on medication

… one more in this series tommorrow …

… continued from part 1 …

Think like a pot plant! That’s the message a dietitian colleague of mine tells older people – water yourself well and get out into the sunlight.

Getting some sun

Just half an hour of activity outside each day is enough not only to keep reasonably fit and toned but also to allow our skin to make its own vitamin D. Older people have about one-quarter the ability to produce vitamin D compared to younger people so it is important to get some sun exposure each day. It’s the sun that causes the skin to make vitamin D. Vitamin D helps carry calcium into the bones to keep them strong. It’s also important for your immune system. Sitting in a sunroom behind glass won’t do it. If at all possible, get up and take a walk around the garden for 30 minutes. Older people who can’t get outside each day may need a low dose (10ug a day) vitamin D supplement. But too much can be toxic so check with your doctor before taking a supplement.

Well watered

As we age we lose our sensitivity to thirst. On top of not feeling thirsty some older people deliberately drink less to avoid embarrassing moments of incontinence. This drying out of the body can lead to headaches, constipation and more concentrated (even toxic) medication levels. It’s important to drink fluids even when you don’t feel thirsty, especially in hot weather. With some medication, the doctor may tell you to restrict fluids but for everyone else it’s good to drink enough to keep your urine clear – about eight glasses of water a day. If that much water sounds too daunting fill a two litre jug with water, add sliced lemon and ice, and drink slowly over the day. Or have a few cups of herbal or green tea. Green tea has more antioxidants and less caffeine than black tea.

Fruit juice also counts as fluid and is good for people who need to gain weight or have no appetite. A glass of unsweetened juice has about three teaspoons of sugar (mostly from the fruit) along with vitamins and antioxidants, depending on the variety. Too much coffee and alcohol causes dehydration. However a study of almost 6000 people aged over 65 found that those who had 7-10 alcoholic drinks a week (not all in one session!) had a third less risk of heart failure compared with abstainers. Maybe it’s due to the relaxing effect of a glass of wine with a meal each night!

Part 3 tommorrow…

A baked potato has got to be one of the easiest meals around. You wash it, prick it and throw it in the microwave for 3-4 minutes – voila! Or, slightly more complicated – you wrap it in tin foil and throw it in the oven at 200C (400F) for an hour. It’s simple, filling and nutritious so why haven’t I done it for years, I wondered?

“Let’s bake some potatoes tonight,” I suggested to my 8-year-old son this morning. He rolled his eyes in total disinterest and asked, “Why?” I switched into ‘enthusiastic mummy’ mode: “Because I want to teach you how to do it – it’s so easy – and then you can put baked beans or corn or cheese on top – it’s so delicious. I’m sure you would love it. It’s just like having cheese or baked beans on toast, except it’s a potato!” The sell job didn’t work and we ended up with grilled salmon and vegetable fried rice!

“That’s the reason!” I realised as we sat eating our dinner with a fork. This generation eats mostly fork food – meals that can be balanced on your knees in front of TV and eaten with one hand. A baked potato, on the other hand, needs a knife and fork – both hands and a good solid table.

Potatoes New Zealand believes that ‘if a child can bake a potato, they can make a meal’. So they are calling all grandparents to teach this simple skill to their grandchildren. I’m sure they won’t mind if parents take up the challenge too. There’s three days left of school holidays and I’m determined to bake a potato with my son. It can’t be that hard, can it!

Related:

The new hero food – potatoes

Found these digging around on the net … mostly from down under!

Glenn Cardwell: Getting kids to eat their veggies … Vegetables were probably never that big in the human diet. We evolved eating meat, seafood, nuts, seeds, fruits, tubers, fungi, berries and insects because that’s where the kilojoules are. When you need energy (kJs/Cals) each day to survive, why bother eating a leaf (lettuce), a flower (broccoli) or something else that is mainly water …

c: I don’t subscribe to the evolution theory, I’m more a creation girl – it makes me feel more special. And the people I have read about who lived 3-4000 years ago definitely knew their grandparents.  But I love the idea of talking positively to your children about vegetables! What about kids and meat?

Dieticians missed point on story: 60 Minutes – National – NZ Herald News … TV3′s 60 Minutes says criticism by nutrition experts on its report on the effects of food colouring on children was disappointing and failed to focus on the real issue – that Britain is phasing out some artificial colours while New Zealand is doing nothing….

c: Medical and other science experts such as dietitians get exasperated with some media reporters who either deliberately or out of ignorance use anecdoctal evidence or dubious ‘studies’ to sensationalise their story. Of course dietitians don’t condone artificial colours and, whether or not  they cause your kids to ‘lose the plot’, it would be good to see these unnecessary additives phased out.

Editorial: Don’t tinker with our daily bread – Health – NZ Herald News … It is not too difficult to see why many public health authorities support the mandatory fortifying of bread with folic acid. No one questions folate’s effectiveness in reducing the incidence of certain birth defects, notably spina bifida, if it is taken in sufficient quantity around the time a woman becomes pregnant …

c:Nice commentary but there are hints of negative effects on the US population -update today on kiwiblog and read my own folate posts.

Omega-3 deficiency causes 96,000 US deaths per year, say researchers … Omega-3 deficiency is the sixth biggest killer of Americans and more deadly than excess trans fat intake, according to a new study. The Harvard University researchers looked at 12 dietary, lifestyle and metabolic risk factors such as tobacco smoking and high blood pressure and used a mathematical model to determine how many fatalities could have been prevented if better practices had been observed …

c: This is really interesting but keep in mind it’s an analysis of numbers – and we all know how they can be manipulated! Still, I’ll be sure to keep up my weekly salmon dinner and salmon sushi snacks – delicious.

A rural town in Australia has voted overwhelmingly to ban the sale of bottled water over concerns about its environmental impact. … Campaigners say Bundanoon, in New South Wales, may be the first community in the world to have such a ban…

c: Good on them! Why pay for something you can get naturally. Bottled water has its place – it’s made it trendy to drink water – that’s got to be a good thing. But if you want to be even more ‘on trend’ and eco-friendly simply drink filtered tap water (see TIME mags megatrend on this).

Blood glucose control ranks high in US death causes

c: From the same mathematical analysis as the omega-3 story.  Blood glucose ranked 5th and omega-3 ranked 6th in preventable causes of death ie it doesn’t include accidents. I’m surprised at inactivity ranking 4th. I’d better go for that bike ride – even though it’s freezing cold outside and I’d rather sit inside and eat cake!

Price of milk too much for many families, study finds – Nutrition – NZ Herald News … Price increases for milk and other dairy products are having a detrimental effect on children’s health, University of Otago researchers say …

c: This means almost 2 out of 3 Kiwi kids don’t drink milk daily – that’s terrible! Instead of cereal with milk what are they eating for breakfast – toast and a can of fizzy? Perhaps we will have to re-introduce milk at schools. How about banana smoothies or Milo instead of sausage sizzles and lollies (see my article on toddlers healthy bones).