Nuts and Heart Health

Nuts and Heart Health

Nuts are a rich source of healthy fats

Nuts are a healthy, high-fat food in a fat-phobic world, but there’s no need to avoid all fats in your diet. Eating a variety of nuts will help provide the right balance of healthy fats in your daily eating plan. Healthy fats are monounsaturated or polyunsaturated fats which can help regulate blood cholesterol. Nuts high in monounsaturated fat include macadamias, hazelnuts, pecans, almonds, cashews and pistachios. Nuts high in polyunsaturated fat include walnuts, pine nuts and Brazil nuts.

Nuts contain plant omega-3s

Plant omega-3s are a type of polyunsaturated fat found in walnuts, pecans, hazelnuts and macadamias. These nuts are one of the few plant sources of omega-3s. This short chain omega-3, called alpha-linoleic acid (ALA), has strong heart health properties. Long chain omega-3s are mostly found in fish and seafood and are also required for heart health.

Nuts regulate cholesterol

A meta-analysis combining the results of 25 nut and cholesterol-lowering studies found that around two handfuls of nuts (67g) on average each day significantly reduced total and LDL cholesterol by 5% and 7% respectively. This is supported by two other meta-analyses, which focused specifically on almonds and walnuts, that found that eating just a handful a day still significantly lowered total and LDL cholesterol.

Nuts reduce cholesterol oxidization

A Traditional Mediterranean Diet (TMD), including 30g per day of nuts, has been shown to reduce LDL cholesterol oxidation when compared to a low-fat diet. Oxidation of LDL cholesterol is a key step in atherosclerosis – the blocking and hardening of arteries. Cholesterol oxidation-reduction is particularly effective through almonds, Brazil nuts and pistachios.

Nuts reduce inflammation

Studies have shown that eating nuts has anti-inflammatory effects. Antioxidants and other phytochemicals play an important role in reducing inflammation. Chronic inflammation is thought to cause many chronic diseases such as heart disease and diabetes.

Nuts are a natural source of plant sterols

These are substances which can help to lower cholesterol levels in the blood by reducing cholesterol re-absorption in the intestines. Mixed nuts, in general, contain around 126mg plant sterols per 100g.

Nuts are a source of arginine

Nuts contain arginine, an amino acid building block of protein which is converted to nitric oxide in the body. Nitric oxide causes blood vessels to relax and remain elastic. Hardening of the arteries and blood clotting can lead to heart disease.

Nuts contain folate

Folate is a B vitamin that helps reduce high levels of an amino acid called homocysteine, which is a risk factor for heart disease. Most tree nuts contain small amounts of folate as one of a number of heart-healthy nutrients.

Nuts contain fibre

All nuts contribute fibre to the diet. There are two types of fibre in foods: soluble and insoluble. Soluble fibre helps reduce blood cholesterol by reducing cholesterol reabsorption in the intestines, excreting it from the body. Insoluble fibre helps maintain a healthy bowel function. Nuts with skins, such as Almonds, Hazelnuts and Peanuts, are particularly high in fibre.

Tips for including nuts in your diet:

  • Mix nuts with dried fruit for a healthy snack.
  • Add cashews or dry roasted almonds to a stir fry or curry.
  • Crush hazelnuts or Brazil nuts and mix them with breadcrumbs and your favourite herbs to make a crunchy
    topping for fish or chicken.
  • Roast macadamias or pine nuts and toss them through a salad.
  • Include pecans and walnuts in home-made muffins.
  • Add chopped pistachios or pine nuts to your favourite pasta sauce.
  • Crush nuts over fresh fruit and yoghurt.
  • Roast chestnuts for a delicious winter treat.


This information was provided by Nuts For Life. Images and Videos were provided by Nuts For Life.Nuts for Life For further information on nuts and health, refer to or phone 02 8295 2300

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