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CHD (diet to tackle atherosclerotic disease)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • there is evidence from population data that a diet high in saturated fat, low in fruit and vegetables, and high in salt is associated with a risk of developing atherosclerotic disease (1)
    • of note is the Seven Countries Study
      • this showed that total fat, and specifically saturated fat, are both positively associated in these populations with 25 year coronary mortality (2)
  • to reduce the risk of cardiovascular disease, it has been recommended that adults should adopt a balanced diet that includes: less fat, especially saturated fat; five portions or more of fruit and vegetables per day; a third less sodium (from about 150 mmol to about 100 mmol); and two or more portions of fish per week (one oily) (3)

NICE state that (4):

  • advise people at high risk of or with CVD to eat a diet in which:
    • total fat intake is 30% or less of total energy intake, saturated fats are 7% or less of total energy intake, intake of dietary cholesterol is less than 300 mg/day and where possible saturated fats are replaced by mono-unsaturated and polyunsaturated fats
  • advise people at high risk of or with CVD to:
    • reduce their saturated fat intake
    • increase their mono-unsaturated fat intake with olive oil, rapeseed oil or spreads based on these oils and to use them in food preparation
  • take account of a person's individual circumstances – for example, drug therapy, comorbidities and other lifestyle changes when giving dietary advice

Vegetarian diet and cardiovascular risk

  • a review (20 RCTs; n= 1878) found 6 months of a vegetarian diets was associated with significant improvements in LDL-cholesterol (6.8 mg/dL), HbA1c (0.25%), and body weight (3.4 kg) but no significant change in systolic BP vs all comparison diets (5)

Reference:

  • (1) Committee on Medical Aspects of Food Policy (1994). Nutritional aspects of cardiovascular disease. Report of the Cardiovascular Review Group. London: HMSO. Report on Health and Social Subjects, 46.
  • (2) Kromhout D et al. Prevention of coronary heart disease. Diet, lifestyle and risk factors in the seven countries study. Kluwer Academic Publishers, 2002.
  • (3) Health Development Agency (2000). Coronary heart disease. Guidance for implementing the preventive aspects of the National Framework. London.
  • (4) NICE (May 2023).Lipid modification Cardiovascular risk assessment and the modification of blood lipids for the primary and secondary prevention of cardiovascular disease
  • (5) Wang T, Kroeger CM, Cassidy S, et al. Vegetarian Dietary Patterns and Cardiometabolic Risk in People With or at High Risk of Cardiovascular Disease: A Systematic Review and Meta-analysis. JAMA Netw Open. 2023;6(7):e2325658. doi:10.1001/jamanetworkopen.2023.25658

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