Dairy is good for us

Dairy consumption coming out of the closet!

For many years Heart Foundations and Associations have been strongly recommending their patients eat a low fat diet, and the current American Heart Association recommends "fat-free and low-fat dairy products as part of healthy eating pattern".

A recent study published in the September 11 online Lancet medical journal has thrown considerable doubt on this. The PURE study looked at over 136,000 adults in 21 countries (both rural and urban) and followed them for nine years, showed that those who ate two or more servings of whole fat dairy products per day at a lower rate of cardiovascular disease, mortality and total mortality than those who did not. The incidence of stroke was also halved in those individuals who consumed dairy products.
Previous studies have also demonstrated the positive benefits of dairy products, most have been conducted in North America and Europe, and this study coordinated from Canada has suggested that we should be taking a very different approach to dairy products, and probably saturated fats.
There is quite a strong emphasis around the world to reduce sugar intake which is leading to the epidemic of obesity, and the only way to do this is to replace the sugar with fats. The study confirms that doing so is highly unlikely to do anything other than good!
It also means that diets such as the Paleo and ketogenic diet are a great deal safer and in fact more beneficial than the conventional authorities have recommended in the past.

I suspect in the not too distant future the guidelines on fat intake will be making a significant U-turn.

Should we be taking aspirin

Should we be taking aspirin?

Even though doctors have been recommending patients to take aspirin for many decades, there is still considerable uncertainty on whether we should be making this recommendation, and if so to whom, and what dose?

A recent study suggested that perhaps when people were larger they needed more aspirin, rather than the conventional dose of 100 mg. Two large papers coming from Europe (one involving more than 15,000, and the other more than 12 a half thousand people) have fortunately clarified the situation and confirmed that 100 mg is fine. (More greatly increases the risk of stomach bleeding, with little or no benefit). Large and small people should all take the same dose (100mg).

Primary prevention – people with no evidence of heart disease, we don't have enough evidence to suggest that this is beneficial, and the risk of stomach bleeding is far greater than any possible benefit. Sadly the studies do not confirm that aspirin has any benefit in preventing cancer. Conclusion - don't take aspirin as a preventative.

Those at higher risk – i.e. people with diabetes or family history, again we don't have enough evidence to suggest that this is necessary or beneficial.

People with established heart disease – the data suggests that taking aspirin does reduce the risk of further heart events by about 12%, and I don't think is any doubt that unless there is some contraindication, people who have angina or a heart attack, had angioplasty or bypass surgery should be taking 100 mg of aspirin.  There is a slight increase in the risk of bleeding (usually from the stomach of between 0.5 and 0.9%)

Should I throw away my fish oil supplements?

Should I throw away my fish oil supplements?
Not yet, not if you are taking the right dose or the right brand!

Three recent studies have thrown doubt among the population on the benefits of fish oils, despite many years of evidence from populations on the benefits from cardiovascular disease, rhythm problems and strokes. I have reviewed these below, but in summary, they have all used a low dose of fish oils, and the quality of the fish oils used is almost certainly suspect. Two trials did show a slight improvement in heart attacks and rhythm problems, and suggested that perhaps if a higher dose had been used the results may have been different.

The take-home message is yes use fish oils, they can do absolutely no harm, and if given in sufficient doses using a quality supplement, could make a major difference in heart attacks, strokes and rhythm problems.