Nutrition
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Randomized Controlled Trial Clinical Trial
Weight loss and total lipid profile changes in overweight women consuming beef or chicken as the primary protein source.
Conflicting recommendations are prevalent regarding the appropriateness of red meat versus white meat consumption for individuals aiming to reduce body weight and cardiovascular disease risk. ⋯ These findings demonstrated that weight loss and improved lipid profile can be accomplished through diet and exercise, whether the dietary protein source is lean beef or chicken.
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Randomized Controlled Trial Clinical Trial
Seasonal variation in insulin sensitivity in healthy elderly people.
There is a seasonal variation in the incidence of diabetes mellitus and cardiovascular diseases. However, there is very little information about the seasonal variation in insulin sensitivity. We report the seasonal variation in insulin sensitivity in a group of elderly subjects followed for 1 y. ⋯ In this group of elderly subjects, insulin resistance and triacylglycerol levels were higher during the summer. Nutritional supplementation and training had a positive effect on serum low-density lipoprotein cholesterol.
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Randomized Controlled Trial Clinical Trial
Decrease in plasma low-density lipoprotein cholesterol, apolipoprotein B, cholesteryl ester transfer protein, and oxidized low-density lipoprotein by plant stanol ester-containing spread: a randomized, placebo-controlled trial.
The ester of plant stanols significantly reduces plasma levels of total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) in Western people. Effects of plant stanol ester-containing spread on plasma levels of TC, LDL-C, and apolipoprotein B (apoB) were studied in a randomized, placebo-controlled trial in Japanese subjects whose diet is low in fat and cholesterol. The effects of plant stanol ester on plasma levels of arteriosclerosis-promoting factors, namely remnants of triacylglycerol (TG)-rich lipoproteins, cholesteryl ester transfer protein (CETP), and oxidized LDL (Ox-LDL), were also studied. The assessment of safety was also made. ⋯ Plasma levels of TC and LDL-C were significantly reduced by the plant stanol ester-containing spread. The smaller reduction than in Western studies and the lack of dose dependency in this study might be due to the different basal diets. We concluded that plant stanol ester-containing spread is efficacious in reducing plasma LDL-C, apoB, CETP, and Ox-LDL and that 2 g/d plant stanol is adequate for Japanese people. No significant side effects were observed in any group.
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Randomized Controlled Trial Clinical Trial
Weight loss associated with a daily intake of three apples or three pears among overweight women.
We investigated the effect of fruit intake on body weight change. ⋯ Intake of fruits may contribute to weight loss.
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Randomized Controlled Trial Clinical Trial
Plasma carotenoids, tocopherols, and antioxidant capacity in a 12-week intervention study to reduce fat and/or energy intakes.
We examined plasma levels of carotenoids, tocopherols, and total antioxidant activity in women before and after dietary intervention to reduce fat and/or energy intakes. Dietary fat and energy may affect intake and bioavailability of carotenoids and tocopherols, and these micronutrient levels in turn can contribute to the antioxidant capacity of plasma. ⋯ The decreases in dietary fat and energy intakes in this study were quite large, but this did not appear to have detrimental effects on plasma micronutrient levels, nor did it appreciably affect plasma antioxidants. Because lycopene levels were significantly associated with plasma TEAC before intervention, interventions that increase levels of lycopene might be more likely to increase the antioxidant capacity of plasma.