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June 19, 2015

Fish Oil Combined With Strength Training May Boost Immunity in Older Adults

Filed under: Omega-3 — Sarah @ 4:19 pm
Sarah
Sarah McGowan-Freije, NatureCity author & contributor

Our immune system gets weaker as we age, making mature adults more vulnerable to infectious, chronic degenerative, autoimmune and malignant disease. A recent study has found that a combination of fish oil and strength training may help mature adults boost their immunity.

Participants in the study included 45 women with an average age of 64. They were assigned to one of three groups: strength training alone for 90 days, strength training with 2 g of fish oil daily for 90 days, or 2 g fish oil for 60 days followed by strength training and fish oil for 90 days. The fish oil contained 180 g EPA and 120 g DHA per kilogram. The strength training occurred three times per week and included floor and upright hip, leg, knee, and foot exercises.

A number of innate and adaptive immune parameters were assessed at baseline, before training and after training.

Strength training alone produced no changes in the immune system. On the other hand, both groups taking the fish oil experienced significant improvements in two markers used to asses immune system function.

The first was Cytokine IL-2, which is a protein that regulates the activities of the white blood cells that are responsible for immunity. Cytokine IL-2 production was increased by 80% with the fish oil supplementation, and 85% with supplementation plus exercise.

The second was IFN-g, a cytokine that is critical for innate and adaptive immunity against viral and some bacterial and protozoal infections. IFN-g was increased by 60% with fish oil and 88% when the fish oil was combined with exercise.

What’s more, fish oil supplementation helped to boost the immune system by increasing white blood cell function, and increasing the number of CD4r and CD8r lymphocytes and lymphocyte cytokines. CD4r and CD8r lymphocytes fight against infections and lymphocyte cytokines are proteins responsible for cell signaling in the immune system

Researchers from Paraná Federal University and the Pequeno Principe Research Institute in Brazil conducted the study. It was published online ahead of print on June 10, 2015, in the British Journal of Nutrition.

Fish oil has also been linked to numerous other health benefits, including combating diabetes, lowering cholesterol, improving vision, reducing the risk of dementia and relieving depression.

If you’re looking to increase your fish oil intake, try adding darker fish, such as salmon or tuna, to your diet. If you don’t like the taste of fish or are just finding it hard to work it into your meal plans, consider taking a high quality supplement. Make sure your supplement is tested for purity and potency.



June 12, 2015

Salmon Oil May Help Lower Markers of Oxidative Stress

Filed under: Omega-3 — Emma @ 4:28 pm
Emma
Emma McGowan NatureCity author & contributor

Oxidative stress is basically an imbalance between the production of free radicals and the ability of the body to counteract or detoxify their harmful effects through neutralization by antioxidants. A recent study suggests that supplements of salmon oil may help lower markers of oxidative stress.

Participants in the study included 160 healthy adults with an average age of 59.3. Over the course of 16 weeks they were given either a placebo, three grams of salmon oil plus a multivitamin, six grams of salmon oil plus a multivitamin, or 6 grams of salmon oil. The six-gram supplement contained 480 mg of EPA and 480 mg of DHA omega-3s.

At the conclusion of the study, the researchers noted significantly lower F2-isoprostane levels in both of the six gram groups. F2-isopropostanes are created when fats are peroxidized. They are considered to be the most reliable biomarkers of in vivo lipid peroxidative damage. The decreases in F2-isopropostane levels were also associated with higher PUFA           levels in the participant’s red blood cells.

There were no changes seen in the three-gram group and no significant difference between the two six gram groups. Additionally, there was no notable effect on inflammation seen in any of the groups.

Researchers from the Swinburne University of Technology in Australia conducted the study. It was published online ahead of print on November 21, 2014, in the Journal of Functional Foods.

Salmon oil has high levels of omega-3s. Omega-3s have been linked to a number of health benefits, including alleviating arthritis pain, improved mood, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in DHA and EPA omega-3s.



June 5, 2015

Omega-3 May Improve Cognitive Flexibility in People at Risk of Alzheimer’s

Filed under: Omega-3 — Emma @ 7:53 am
Emma
Emma McGowan NatureCity author & contributor

Cognitive flexibility refers to the mental ability to efficiently switch between thinking about two different concepts, and to think about multiple concepts simultaneously. A recent study suggests that a higher consumption of omega-3 fatty acids may help with improved cognitive flexibility in adults who are at risk of late onset Alzheimer’s disease.

Previous studies have suggested that cognitive flexibility and other executive functions may better predict daily functioning than memory does. These executive functions tend to decline earlier than other functions in aging.

Participants in the study included 40 cognitively healthy older adults who were between the ages of 65 and 75. All were carriers of the gene variant APOE e4, which is known to contribute to late-onset Alzheimer’s. The researchers tested the participant’s cognitive flexibility and measured their brains using MRI. They also performed cognitive flexibility tests.

The participants with higher blood levels of omega-3s performed better on the cognitive flexibility tests than those with lower levels. They also had a bigger anterior cingulate cortex compared to their lower omega-3 peers. The anterior cingulate cortex is the region of the brain that is known to contribute to cognitive flexibility.

Researchers from the University of Illinois conducted the study. It was published on May 21, 2015, in Frontiers in Aging Neuroscience.

Omega-3s have been linked to a number of health benefits, including alleviating arthritis pain, better moods, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in DHA and EPA omega-3s.



June 4, 2015

Omega-3s May Help Slow Age-Related Muscle Decline

Filed under: Omega-3 — Sarah @ 3:30 pm
Sarah
Sarah McGowan-Freije, NatureCity author & contributor

Both muscle mass and function decline as we age, typically starting in the 40’s and then increasing after age 50. A recent study suggests that supplements of omega-3s derived from fish oil may help slow that decline.

Participants in the study included 60 healthy older people between the ages of 60 and 85. Over the course of six months, they were given either a supplement containing 1.86 g of EPA and 1.5 g of DHA or a control in the form of corn oil. Forty-four of the participants completed the study.

The researchers found that the omega-3 group had a 3.6% increase in thigh muscle volume, a 5 pound increase in handgrip strength, and a 4% increase in maximum lower and upper body strength when compared with the control group. The difference in muscle volume was approximately 3.5% and the difference in muscle strength was approximately 6%.

The researchers noted that these results are lower than what is reported from exercise training but more than reported from testosterone, growth hormone, or dehydroepiandrosterone therapy in older adults.

Researchers from the Center for Human Nutrition and the Program in Physical Therapy conducted the study. It was published on May 20, 2015, in the American Journal of Clinical Nutrition.

Omega-3s have been linked to a number of health benefits, including alleviating arthritis pain, better moods, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in DHA and EPA omega-3s.



May 22, 2015

Omega-3s May Boost Blood Flow, Performance in Athletes

Filed under: Omega-3 — Sarah @ 3:56 pm
Sarah
Sarah McGowan-Freije, NatureCity author & contributor

A recent study suggests that supplements of omega-3 may increase nitric oxide in the blood and increase blood flow, leading to better exercise performance in cyclists.

Participants in the study included 13 elite cyclists who were given either 1.3 g of omega-3s or a placebo daily for three weeks. At the conclusion of the study, the researchers noted an average increase in nitric oxide levels of 9.6 micromoles per liter in the omega-3 group, while the placebo group showed increases of only 1.4 micromoles per liter.

The researchers also noted a 5.25% increase in flow-mediated dilation in the omega-3 group. This was associated with notable increases in maximal oxygen intake when compared with the placebo.

Researchers from the Academy of Physical Education in Katowice and the Medical University of Silesia conducted the study. It was published in the June 2015 issue of the European Journal of Sports Sciences.

Omega-3s have been linked to a number of health benefits, including alleviating arthritis painbetter moods, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in DHA and EPA omega-3s.



May 8, 2015

Omega-3 Supplemented Infant Formula Increases Long Term Growth

Filed under: Omega-3 — Sarah @ 9:00 am
Sarah
Sarah McGowan-Freije, NatureCity author & contributor

A recent study suggests that infant formula supplemented with omega-3 fatty acids may lead to longer and heavier children when compared with an infant formula that did not include omega-3 fatty acids.

Participants in the study included 69 infants who were raised from birth on formula. Fifty-nine of the babies were given a formula that included a long chain polyunsaturated fatty acid supplement, while the other 15 were given a control formula. They were fed these formulas for the first 12 months of their lives.

The researchers followed up with the children when they were six years old and found that the omega-3 group had higher length, stature, and weight-for-age percentiles from birth to 6 years of age when compared with the control group. However, the supplemented group did not have a higher BMI percentile compared to the control group.

They also found that the children of mothers who smoked had smaller length and stature, regardless of whether they took the omega-formula or the control. Those children also had higher BMIs.

Finally, the researchers noted that males had greater increases in stature associated with the supplemented formula when compared with females.

Researchers from the University of Kansas Medical Center and the University of Tennessee Health Sciences Center conducted the study. It was published online ahead of print on April 18, 2015, in the journal PLEFA.

Omega-3s have been linked to a number of health benefits, including alleviating arthritis pain, better moods, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in DHA and EPA omega-3s.



April 21, 2015

Drink Containing Omega-3s and Botanicals May Help Slow Advancement of Cognitive Decline

Filed under: Omega-3 — Sarah @ 7:08 pm
Sarah
Sarah McGowan-Freije, NatureCity author & contributor

Mild cognitive impairment is the intermediate stage between the normal cognitive decline seen with aging and the more serious decline of dementia. A recent pilot study suggests that a drink containing a mix of omega-3s and mixed botanicals may have significant immune and biochemical effects on people with mild cognitive impairment.

Participants in the study included 12 people with mild cognitive impairment, two people with pre-mild cognitive impairment, and seven people with Alzheimer’s disease. They were given the 2000 mg drink containing high levels of DHA and EPA, resveratrol, vitamin D3 and other vitamins and antioxidants for between four and 17 months.

The researchers found that the people with mild cognitive impairment and pre-mild cognitive impairment had an increase in beta amyloid clearance from 530 to 1306 mean florescence intensity units. This was measured by looking at the destruction of beta amyloid by white blood cells called monocytes. Beta amyloid plaque buildup in the brain is associated with the progression of Alzheimer’s disease.

The researchers also found the anti-inflammatory resolvin RvD1 increased in the macrophages in 80% of the patients with mild cognitive impairment and pre- mild cognitive impairment. Macrophages are white blood cells that engulf and digest cellular debris, foreign substances, microbes, and cancer cells. Resolvin RvD1 has been shown to help clear out beta amyloid in labs.

The researchers also believe that supplementation may have helped stabilize the cognitive status of the participants with mild cognitive impairment and pre- mild cognitive impairment. They did not show any significant changes in their minimental state examinations, as would be expected over a long period of time from people suffering from mild cognitive impairment.

Researchers from UCLA conducted the study. It was published online ahead of print on March 24, 2015, in The FASEB Journal.

Omega-3s have been linked to a number of health benefits, including alleviating arthritis pain, better moods, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in DHA and EPA omega-3s.



April 10, 2015

Omega-3 Supplements During Lactation May Be Beneficial for Babies

Filed under: Omega-3 — Sarah @ 5:47 pm
Sarah
Sarah McGowan-Freije, NatureCity author & contributor

The DHA form of omega-3s accounts for more than 10% of brain fatty acids and is important for brain development in babies. A recent study suggests that taking omega-3 supplements may help lactating women increase omega-3 levels in their breast milk and help babies achieve a better ratio of omega-3 to omega-6.

Participants in the study included 89 lactating women and their babies. All of the women were 4-6 weeks postpartum. They were given either a placebo, 200 mg DHA or 400 mg DHA for six weeks and told to follow their usual diets.

The researchers measured both breast milk and maternal plasma fatty acid levels in the mothers at the beginning and end of the study. Fatty acid levels in the infants were measured at the end of the study.

The researchers found that the 200 mg supplement was associated with a 50% increase in omega 3s in the breast milk and 71% increase in maternal plasma DHA, compared to placebo. The 400 mg dose showed even greater improvements, with 123% and 101% increases, respectively. 

The babies in the supplement groups had lower omega 6:3 ratios than those in the placebo group. Lower ratios have been associated with higher percentage of DHA in the three critical regions of the brain. Some studies suggest that an imbalance in the 6:3 ratio in the early stages of life may result in irreversible changes in the hypothalamus.

Researchers from Abbott Nutrition conducted the study. It was published online ahead of print on February 10, 2015, in the journal PLEFA.

Omega-3s have been linked to a number of health benefits, including alleviating arthritis pain, better moods, improved joint mobility, helping with age related macular degeneration, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in DHA and EPA omega-3s.



April 3, 2015

Omega-7 May Lower Inflammation Up to 44%

Filed under: Omega-3 — Emma @ 4:59 pm
Emma
Emma McGowan NatureCity author & contributor

Systemic inflammation has been linked to an increase in the risk of a number of diseases, including depression, cancer, heart attack, diabetes, and Alzheimer’s disease.  A recent study suggests that a patented, purified form of omega-7 fatty acids may lower levels of C-reactive protein (CRP), a marker of inflammation, by as much as 44%.

The proprietary supplement used was sourced from anchovy or menhaden oil. It contained 50% palmitoleic acid and only a small amount of palmitic acid, which has been found to be associated with atherosclerosis, diabetes, and weight gain.

Participants in the study included 60 people with abnormal lipid levels and mild systemic inflammation, which was demonstrated by slightly elevated CRP levels. Over the course of 30 days, they were given either 220.5 mg of omega-7s in the form of cis-palmitoleic acid or 1000 mg of medium chain triglycerides as a placebo.

At the conclusion of the study, the omega-7 group had a 44% reduction in CRP, a 15% reduction in triglycerides, and an 8% reduction in LDL cholesterol levels. They also had an average 5% increase in HDL cholesterol, when compared with the placebo.

Researchers from the Cleveland Clinic conducted the study. It was published in the November-December issue of the Journal of Clinical Lipidology.

Previous studies suggest that omega-7 palmitoleic acid may help with insulin sensitivity, and slow the destruction of insulin-secreting pancreatic beta cells. Some of the many foods that contain palmitoleic acid include sea buckthorn berries, macadamia nuts, whale blubber, anglerfish liver, lard, baker’s yeast, butter, herring, avocado, cheddar cheese, and egg yolk.



April 1, 2015

This Nutritional Supplement May Help Women With Hair Loss

Filed under: Omega-3 — Emma @ 5:03 pm
Emma
Emma McGowan NatureCity author & contributor

Female pattern hair loss (FHPL) affects as many as 50% of women over the age of 50 and is usually seen as lower hair density, mainly in the crown and frontal scalp. A recent study suggests that taking a combination of omega-3s, omega-6s, and antioxidants may improve scalp coverage and the condition of hair in women suffering from FHPL.

Participants in the study included 120 healthy women who took either a specific blend of omega-3s and omega-6s from fish and blackcurrant seed oils combined with antioxidants or a placebo over the course of six months. At the conclusion of the study, the supplement group had improved hair density as measured by photograph assessment.

89.9% of the participants in the supplement group also reported a reduction in hair loss, 78.5% reported improvement in hair diameter, and 87.3% reported better hair density.  In the control group, 69.2% of the participants reported a reduction in hair loss, 33.3% reported improvement in hair diameter, and 64.1% reported better hair density.

Researchers from Laboratoires innéov in France conducted the study. It was published in the March 2015 issue of the Journal of Cosmetic Dermatology.

Omega-3s have been linked to a number of health benefits, including improved joint mobility, helping with age related macular degeneration, better moods, and aiding your immune system.

Because omega-3 fatty-acids are not found naturally in the human body, it is especially important to make sure that they are a part of your daily diet. Oily, dark fish such as tuna and salmon are high in omega-3s. If you don’t like fish, consider taking a daily high quality non-fish supplement that has been tested for purity and potency.

Omega-6 are also essential fatty acids that are not produced by the human body. Previous studies link them with improved brain functioning. However, the American diet often contains too many omega-6s and maintaining a balance between omega-6 and omega-3 is essential for good health.

Antioxidants are vital for good health because they combat free radicals. Free radicals break down cells in the body and can lead to heart disease, Alzheimer’s disease, rheumatoid arthritis and diabetes. The production of free-radicals can be increased as a result of smoking, pollution, alcohol, infection and stress.



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