Maximaal 3 eieren per week is allang achterhaald.
Zie dit
artikel Passage:
The last day of the conference was dedicated to the use of the Columbus Concept to designer foods. Dr Donald McNamara (Egg Nutrition Centre, USA) gave a presentation entitled Eggs and Health: a world of possibilities. He first reviewed how the recommendations for egg consumption have changed over the past 50 years. In 1954, the American Medical Association recommended the consumption of eggs 3 - 5 days a week, daily preferably.
In 1968, the American Heart Association changed the recommendation to no more than 3 eggs per week, stating that we should limit our cholesterol intake to no more than 300 mg per day. It is interesting to note that eggs were the only food restricted in these guidelines (there were no ice cream, hot dog or sweet restrictions!). Eggs became the icon of cholesterol, which resulted in a dramatic fall in egg consumption.
However, nowadays research continues to document the lack of any relationship between egg consumption and heart disease risk. Early animal studies that suggested that dietary cholesterol was linked to heart disease were carried out on rabbits (Anitschkow & Chalatow 1913); being herbivores, rabbits do not have the physiology to handle cholesterol. Moreover, the dose of cholesterol given was excessive (1700 mg per 1000 kcal). Similarly, early epidemiological studies suffered from the problem of colinearity with the amount of saturated fatty acids in the diet. The Health Professionals' Follow-up and the Nurses' Health studies (Hu et al. 1999) both showed that dietary cholesterol was not related to coronary heart disease.The relative risk of developing CVD was similar between those consuming one egg per week and those with an intake of six eggs per week. More recent studies have supported this view (Fukuoka 2006, Nakamura 2006, NHANES 2007). Some clinical data (reviewed by McNamara 2000) have shown an elevated risk in those consuming more than six eggs per day (equivalent to 1500 mg of cholesterol per day). One egg a day increases the total cholesterol level by increasing both HDL- and LDL-cholesterol, while the LDL : HDL ratio (the main indicator for the risk of CVD) remains unchanged. Eggs are, however, very useful components in the diet. The high-quality protein contained in eggs is extremely important for the elderly as, later in life, the body cannot utilise dietary protein as efficiently, and the diet therefore needs to provide more protein.
Eggs also contain choline, which appears to be critical during embryonic brain development. An increased intake of choline during pregnancy and lactation is linked to a higher number of memory centres in the infant's brain (Zeisel 2006).
Choline levels are also inversely related to homocysteine levels, which is why choline is thought to play a role in protection against CVD. Pregnant women consuming a diet low in dairy and meat protein have been found to give birth to lower birthweight babies (Godfrey & Barker 2000), who are at increased risk of developing chronic diseases, such as CVD, the metabolic syndrome and cancer in later life.
Eggs also contain lutein (a carotenoid) which has a bioavailability two- to three-fold higher than the lutein found in spinach (Chung et al. 2004). Lutein is a powerful antioxidant thought to help reduce the risk of age-related macular degeneration. However, unlike -carotene, lutein is not a precursor to vitamin A; it has its own specific role in the eye to help absorb blue light. Eggs may also be useful for weight control as they have a high satiety value as a result of their protein content.
In 2002, the American Heart Association refined their recommendation again to state that There is no longer specific recommendation on the number of egg yolks a person may consume per week (ACC/AHA 2002).