Eating an egg a day for a week: a dietician's experiment

Eggs have always been a source of disagreement between experts and consumers: while some consider them a food to be consumed in moderation, others have re-evaluated them in the light of more recent scientific data, which suggest that limiting their consumption is no longer necessary.

American dietician Lauren Manaker decided to conduct a small experiment by including one egg a day in her diet, and documenting this over seven consecutive days.

The aim? To be able to consider the effect of an egg, consumed daily, on well-being, energy and appetite control. Throughout the week, the dietician varied the preparations, from soft-boiled eggs to poached eggs and scrambled eggs and more creative recipes, to avoid monotony and try out different cooking methods.

Almost immediately, an initial observation emerged: as Lauren Manaker kept a close eye on her total egg intake, she realized just how ubiquitous this ingredient is. Egg pastes, pastries, coatings and all kinds of preparations have pushed her consumption well beyond the single egg she had planned for in her experiment.

Changes in everyday life

The first positive effect observed by the specialist concerned her energy management throughout the day. No more mid-morning or mid-afternoon slumps: her energy levels remained stable, probably thanks to the intake of high-quality protein, which helped stabilize her blood sugar levels.

Hunger was also reduced. The satiating power of proteins enabled her to get to her main meals without the irresistible urge to snack. A significant advantage for anyone trying to manage their weight, or simply aspiring to a healthier relationship with food.

Finally, having a source of protein at hand made meal planning easier, reducing the stress of asking "what am I going to eat today?" and enabling more considered choices.

Why are eggs so nutritious?

From a scientific point of view, eggs are an extraordinary nutritional concentrate for a relatively low calorie intake. Each egg contains around six grams of protein, as well as all the essential amino acids that our bodies cannot produce themselves.

Choline, often overlooked in nutrition, deserves special mention. This compound is essential for brain health and cognitive function, but many people don't consume enough of it. Eggs are an excellent source.

The much-debated egg yolk also contains a wealth of micronutrients: vitamin B12 for the nervous system, vitamin D for bones and immunity, iodine for the thyroid, and selenium as an antioxidant. And let's not forget lutein and zeaxanthin, two carotenoids that protect eye health and may reduce the risk of macular degeneration.

How you cook eggs matters (a lot)

Not all egg dishes are created equal. Boiled, poached or steamed eggs preserve nutrients without adding unnecessary calories. Conversely, frying them in lots of oil or accompanying them with bacon and cold meats can turn them into a calorie bomb.

The rules to follow are few and simple: opt for minimal cooking, limit fats and bring out the egg's natural flavor with herbs and a drizzle of extra-virgin olive oil.

When caution is called for

While Lauren Manaker's experience was positive, it doesn't mean that eating an egg a day is universally recommended. According to the latest scientific data, in healthy people, dietary cholesterol has less impact on blood levels than previously thought, but there are some important exceptions: anyone with pre-existing conditions such as high cholesterol, cardiovascular disease or diabetes should consult their doctor before increasing their egg intake. Every body reacts differently, and personalization is essential.

Carefully monitoring what we eat and listening to our body's reactions remains the wisest approach. There is no universal rule. Eggs can be valuable allies in a balanced diet, provided they are thoughtfully integrated into a varied diet tailored to individual needs.

Source : Prevention

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