Omega-3 and overweight

A study has evaluated the combination of omega-3 with a very low-calorie diet and regular exercise: 27 obese women underwent a 3 week inpatient period of weight reduction in which some volunteers practised 60 min/day of light to moderate exercise. All of them were randomly assigned to consume either a very low-calorie diet (2200 kJ/day) supplemented with 2.8 g/day of omega-3 (ratio 2 EPA:1 DHA) or the very low-calorie diet […]


Omega-3 and memory

The results of the study we will discuss in this post show that daily intake of omega-3 from fish oil during a 5 week period significantly improves working memory in healthy subjects (the working memory refers to the simultaneous temporary storage and processing of the information necessary for complex cognitive tasks such as language comprehension, learning and reasoning). With the objective of evaluating the effects of dietary supplementation with omega-3 […]


Pregnancy and depression

During pregnancy, 20% of women have depressive symptoms and it is estimated that as much as 16% of women suffer postpartum depression. Prenatal depression increases risk of preeclampsia, birth difficulties and postpartum depression (which, in turn, can have negative effects on the care given to the baby and the mother herself; and is linked to the development of depression in the adolescence of the child). Nutrient requirements are higher during […]


DHA and aggression

With the purpose of determine if DHA intake has any effect on aggression, it was performed a study with 41 japanesse students. During 3 months, from the end of summer vacation until the first term-final exam, they took either capsules containing 1.5-1.8 g DHA/day or control capsules containing 97% soybean oil plus 3% fish oil, and completed a psychological test (with pictures illustrating frustration) at the start and at the […]


Omega-3 and obesity

In several studies it has been found that increasing the intake of omega-3 by 0,3–3,0 g/day can improve the composition of our body, reducing body weight and body fat in overweight and obese people. One of them examined the fatty acid composition of abdominal adipose tissue samples of 84 obese patients (the adipose tissue is a connective tissue consisting mainly of fat cells). The researchers found that abdominal obesity (waist-hip […]


Brain aging and DHA

Lower levels (in comparison with higher levels) of DHA in red blood cells of people free of dementia are associated with smaller brain volume and a pattern of cognitive impairment similar to the persons who have dementia. This is the conclusion reached by a study with 1575 dementia-free participants, from 58 to 76 years of age, in which they had to perform cognitive tests (to measure brain aging) and to […]