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As far as naturalists are concerned, the great value of wildflowers is in perpetuating the species, in contributing their very presence to the environment in which they play an integral part, though their particular function may not be well understood, even by botanists. Where certain habitats have been disturbed by the construction of dams or human habitations or by the cultivation of land farms and forestry, some flowers have declined in numbers. Occasionally becoming endangered species or even extinct altogether. It is important, therefore, for amateur naturalists to leave such plants where they are, rather than to pick them or attempt to transplant them to their own gardens. Some wildflowers make lovely garden plants and are easy to grow-daisies, violets and buttercups are especially popular and are not all endangered in the wild – and a pretty wildflower garden can turn any backyard into a showplace. But it is always best to purchase the seeds from a commercial nursery or seed Catalog Company rather than try to collect flowers from nature. It is not always easy to reproduce growing conditions in which the plant will feel at home, and it would be a shame to risk the loss of a wildflower in this experimental way.
Popular pastimes for flower lovers in the days before wildflower were considered a natural treasure was to collect and press them. Some enthusiasts would fill entire albums or create handsome dried collages or arrangements, and even today such objects are admired for their beauty. But again, because of the rarity of some flowers and the simple fact that living flowers are always more beautiful than dead ones, collecting them is not recommended. The best ways to bring wildflowers home are through your own photographs or by sketching or painting them on the spot and then displaying your artwork
Nearly 7% of the world population is obese1 and about 66% of the adults in the United States are overweight or obese.2 Obesity is associated with a number of adverse medical conditions including increased risk of gallbladder disease, hypertension, type 2 diabetes mellitus, coronary heart disease (CHD), osteoarthritis, cancer death and reduced life expectancy.3–8 Obesity is also associated with adverse social and psychological consequences, including bias, discrimination and decreased quality of life.9,10
More effective treatment strategies are urgently needed for obesity management. The total caloric intake or energy density of one’s diet appears to be associated with obesity11–14 and a diet that induces a negative energy balance continues to be an important part of obesity management. Strategies to achieve the difficult task of eating less than desired include reduction of the energy density of foods by increasing food volume by the addition of fluids,15,16 bulk17–19 or their combination;20 or by increasing satiety by various anorectic drugs or macronutrient combinations of high satiety value.
Satiety is positively associated with the protein, fiber and water content of foods and negatively with fat and palatability ratings.21,22 However, within food groups, there may be as much as a twofold difference in satiety values, suggesting that certain foods promote greater satiety independent of macronutrient content or energy density. An egg is an example of such a food that has a 50% greater satiety index compared to white bread or ready-to-eat breakfast cereal.21 Compared to an isocaloric bagel breakfast of equal weight, an egg breakfast had a greater satiating effect, which translated into a lower caloric intake at lunch.23 The resulting decrease in energy consumption lasted for at least 24 h after the egg breakfast.
This study was undertaken to exploit the short-term satiating benefits of an egg breakfast23 for weight loss in a longer-term trial. The objectives were to determine if the incorporation of an egg breakfast in the diet by overweight or obese subjects would (1) induce reduced energy intake and unintentional weight loss, even when not attempting weight reduction; or (2) enhance weight loss when following a reduced energy diet. We compared the effects of an egg vs isocaloric bagel breakfast of equal weight on weight loss, indices of body size and composition, dietary compliance, food cravings and health-specific quality of life.Materials and methods
The study was approved by the institutional review boards at Pennington Biomedical Research Center and at Saint Louis University. Written informed consent was obtained from the participants. We certify that all applicable institutional and governmental regulations regarding the ethical use of human volunteers were followed during this research.
Of the 160 participants enrolled, 8 did not complete the trial. The final study sample included 152 participants (131 women and 21 men; mean age 45.0±9.4 years; black participants 47.7% and white participants 52.3%). Demographic characteristics of the participants are provided inTable 1
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