A study by Heaney et al. found that calcium absorption from soy milk is three-quarters of that from cow's milk. The researchers recommend increasing soy milk fortification to match calcium absorption levels of cow's milk.
A study published in the American Journal of Clinical Nutrition found that high vitamin K intake was associated with lower incidence of hip fractures in elderly participants, while no correlation was found with bone mineral density or apo-E genotype. Researchers analyzed data from the Framingham Heart Study and discovered a significant...
A study published in the American Journal of Clinical Nutrition found that black women who lost weight through dieting had a significantly lower energy expenditure than white women. The researchers suggest that differences in body composition, including denser bones and more lean tissue in the limbs, may contribute to this disparity.
Research published in the American Journal of Clinical Nutrition found that tea drinkers had a 5% greater mean BMD than non-tea drinkers, equating to a 10-20% decline in fracture risk. Isoflavonoids in tea are thought to contribute to this positive effect.
A study published in The American Journal of Clinical Nutrition found that a father's percent body fat predicted the pattern of weight gain in their daughters. The researchers analyzed data from 47 pre-pubescent girls, finding that only the father's weight correlated with the daughter's weight gain patterns.
A study found that genetic variations can cause individuals to be more resistant to a cholesterol-lowering diet or at greater cardiovascular risk from a high-fat diet. Apolipoprotein B gene polymorphisms were associated with increased plasma total cholesterol concentrations in certain genotypes.
A 12-week study found that carotenes and vitamin E supplements reduced sunburn intensity in fair-skinned individuals. The duration of supplementation was more effective than dosage in protecting against sunburn damage.
A study found African American children exhibited more risk factors for diabetes and cardiovascular disease than white children, despite healthier diets. The authors cautioned that the diets in this study were of poor quality according to national recommendations.
A study published in the American Journal of Clinical Nutrition found that lutein and zeaxanthin, two types of carotenoids, have a protective effect against colon cancer. The antioxidants in these compounds help neutralize oxygen radical species and reduce the risk of colon cancer, particularly in younger individuals.
A study found that unfiltered coffee increases plasma homocysteine concentrations in healthy volunteers, equating to a 10% overall increase in risk for heart attack or stroke. Individuals at risk of cardiovascular diseases should limit their consumption of unfiltered coffee.
A study published in the American Journal of Clinical Nutrition found that smokers who received vitamin C supplements showed a substantial 3-fold increase in vitamin C levels, while nonsmokers and placebo recipients showed minimal changes. Vitamin C is significantly depleted by smoking, making supplementation beneficial for smokers.
Multiple studies show that psyllium can effectively lower total and LDL cholesterol levels in adults with hypercholesterolemia. Psyllium husks, a non-soluble fiber, may increase bile acid excretion and secondarily reduce cholesterol from the liver.
A study of middle-aged women found that high consumption of zinc, magnesium, potassium, fiber, and vitamin C was linked to higher bone mineral density and reduced evidence of bone loss. Moderate alcohol intake also appeared to have a positive effect on bone health.
Researchers found that the presence of alcohol in red wine had no additional benefit to the body's absorption of flavonoids, including catechin. Blood concentrations of catechin rose sharply in both groups but persisted for less time in those who drank alcoholic beverages.
A new Greek study suggests that high consumption of olive oil and cooked vegetables may protect against rheumatoid arthritis. The study found a lower risk of developing RA among those who ate the highest amount of cooked vegetables, with a 75% lesser risk compared to those in the lowest category.
A study found that green tea extract increases thermogenesis and overall energy expenditure, promoting fat burning. The supplement's catechin polyphenols and caffeine content showed a synergistic interaction, which boosted metabolic rates.
Researchers Hu et al. found little distinction among saturated fatty acids on cardiovascular risk, and combining with less harmful ones in food sources reduced risk significantly when replaced by monounsaturated and polyunsaturated fats.
A recent study found that a diet rich in monounsaturated fats, particularly from sources like peanut butter and olive oil, can lower cardiovascular risk by up to 20.6%. This contradicts conventional wisdom that low-fat diets are best for heart health.
A study of 741 men and women exposed to the Dutch famine in utero found middle-aged women showed increased obesity rates, particularly abdominal deposition of body fat associated with metabolic syndrome. Women whose mothers were exposed to the famine early in their pregnancies were especially prone to later obesity.
A diet rich in folate, Vitamin B6, and Vitamin B12 may significantly lower homocysteine concentrations in individuals with high cardiovascular risk. This study found that a prescribed diet fortified with these nutrients was effective in reducing homocysteine levels, while self-selected diets showed no change.
A daily fish meal as part of a weight-loss diet lowers cholesterol levels, benefits glucose metabolism, and promotes successful weight loss in overweight middle-aged men and women with hypertension. The study found that a low-fat diet combined with fish consumption improved patients' glucose tolerance and reduced abdominal fat.
A new case-control study suggests that high levels of serum ferritin are associated with an increased risk of heart attacks in elderly individuals with other cardiovascular risk factors. Consuming iron-rich foods like red meat can contribute to elevated serum ferritin levels.
A meta-analysis of formerly obese individuals who lost weight found that their resting metabolic rate decreased, explaining why dieters struggle to maintain weight loss. This decrease in metabolism may be a key factor contributing to the difficulty in keeping excess weight off.
A study published in the American Journal of Clinical Nutrition found that consuming a moderate-fat diet rich in plant oils reduced LDL cholesterol levels by 25% in hyperlipidemic men. The specific type of plant oil used in the study was found to have a significant impact on improving cholesterol profiles.
The long-term study found that orlistat helped successful dieters keep weight off. The accompanying editorials suggest that orlistat's benefits are modest.
A new study published in American Journal of Clinical Nutrition found that restricting children's access to certain foods can actually encourage overeating. By removing access to desired foods, children are more likely to consume those same foods, leading to increased intake.
A meta-analysis of 37 diet intervention studies found that reducing dietary calories, saturated fat, and cholesterol has a positive effect on serum lipids and cardiovascular risk. The study suggests that adopting healthier eating habits can be an effective way to lower the risk of cardiovascular disease.
African American and Mexican American adults have lower serum and red cell folates compared to white adults. This disparity underscores the importance of improving dietary habits and folate supplements among these populations. Lower folate levels are a risk factor for neural tube defects in offspring and potentially other diseases.
A large study found that cardiorespiratory fitness was associated with a lower risk of death from all causes, regardless of body fatness. The researchers suggest that fitness may be more important than being lean for reducing obesity and mortality risk.
This study of 260 retired Baltimore schoolteachers found correlations between coffee consumption, inadequate dietary protein, and increased serum homocysteine levels. The findings suggest that reducing these lifestyle factors may help mitigate the risk of cardiovascular disease.
The editorial reviews the effects of moderate alcohol consumption on stimulating appetite and food intake. It highlights the need for long-term studies to understand its impact on body weight.
A study of 52 healthy volunteers found that a single pre-luncheon drink of wine or beer delayed mealtime satiety and increased 24-hour calorie intake compared to non-alcoholic drinks of equal calories. This suggests that alcohol consumption before lunch may play a role in weight gain among moderate drinkers.
A study of 42 women found that maternal folate status during extended lactation was sustained by supplementing with 1 mg folic acid per day. This supplementation helped maintain plasma and milk folate levels as well as hematocrit, but had no effect on unsupplemented women.
A study of 3000 children aged 5-17 found a clear relationship between abdominal fat and abnormal serum lipids and insulin levels. This suggests that childhood obesity may predict later development of diabetes and heart disease.
A 10-year-old study found that early childhood anemia can lead to poor school performance and mild to moderate mental retardation. The research strengthens the need for effective identification and treatment of iron deficiency in early childhood.
A large retrospective study found that poor dietary intake of animal protein in postmenopausal women is associated with an increased risk of hip fracture. In contrast, calcium and vitamin D intake had no significant association.
A study published in the American Journal of Clinical Nutrition found that African American women who lost weight on reducing diets burned less resting energy expenditure than their white counterparts. This difference was significant and may contribute to the higher prevalence of obesity among Black women in the US.
A large Danish study found moderate wine consumption protects against coronary heart disease. Red wine's high antioxidant content is linked to a healthier diet, including more fruit, vegetables, and fish consumed by wine drinkers compared to beer or spirits consumers.
A study found that leptin decreases in response to energy deficit in women, leading to increased hunger and desire to eat. Leptin's role in regulating food intake is supported by the association between leptin levels and self-reported hunger.
Participation in an atherosclerosis treatment program reduced plasma total cholesterol and apolipoprotein B concentrations. The LDL content of alpha-tocopherol and beta-carotene was also increased, leading to a decrease in LDL oxidation.
A cross-sectional analysis of 215 women aged 18-31 found correlations between weight, height, lean mass, and dietary factors like calcium, protein, and phosphorus with various bone mineral measures. Postmenarcheal age was positively correlated with total-body BMD and BMC, while radius BMD was linked to protein and phosphorus intakes.
Healthy men who used olive oil instead of saturated fats for eight weeks experienced increased triglyceride but lower LDL-cholesterol and clotting factor VII. The long-term significance of this effect on coronary mortality remains unclear.
A 10-year analysis of ischemic heart disease deaths among 34,492 postmenopausal women showed that those who consumed the most whole-grain had the lowest risk. The positive effect was attributed to increased intake of phenols, vitamins, and phytoestrogens.
A study found that red wine polyphenols increased the lag time of LDL oxidation, decreased lipid peroxides and thiobarbituric acid-reactive substances, and boosted plasma and LDL polyphenols. Vitamin E supplementation also showed antioxidant effects, although with varying degrees depending on EDTA presence.
Daily consumption of a tomato-based juice supplemented with vitamin C, vitamin E, and beta-carotene significantly decreased breath pentane excretion and improved LDL oxidation resistance. Increased plasma lycopene concentrations were also found to be correlated with antioxidant defenses.
A study of 1235 adults found that obesity was associated with reduced breathing capacity, but only when fat mass was present. Handgrip strength and muscular fitness were also linked to improved lung function, suggesting a mediating role in the relationship between body composition and respiratory function.
The study found that dietary DHA and EPA supplementation significantly influenced heart rate, with improved left ventricular diastolic filling observed in the marine oil groups. The fatty acid composition of plasma phospholipids may affect cardiac mechanics in humans.
Researchers investigated enteral supplements' impact on AIDS patients, finding net increases in protein and energy intakes. However, fat-free mass did not increase for the group as a whole, but was inversely correlated with baseline synthesis of fat.
Breast-fed infants who received iron-fortified foods from 4 to 6 months had higher mean iron intake and hemoglobin, hematocrit, and ferritin values than exclusively breast-fed infants. However, the percentage of infants with low hemoglobin did not differ significantly between groups.
The article provides expert guidance on infant feeding, highlighting the importance of individualized recommendations based on nutritional needs and growth patterns. The authors suggest a tailored approach to feeding, considering factors such as breast milk supplementation and introduction of solid foods.