E.J. Johnson of Tufts writes in Nutrition Reviews that lutein and zeaxanthin matter for cognitive function as well as vision. Lutein is the main carotenoid in the human brain, at twice the level in children as in adults, and higher serum lutein has been linked to better cognition.
Section archive
Page 27 of 189
Nutrition
Vitamins, minerals, supplements, herbs and diet: the research on how what we eat shapes our health.
- All desks
- Abortion
- Accutane
- Acetaminophen
- Acid Reflux
- Acidic Foods
- Acne
- Acrylamide
- Acupuncture
- Additives
- ADHD
- Adiposity
- Advisories
- Aerobic Exercise
- Aflatoxin
- Agave
- Agent Orange
- Aging
- Agriculture
- AIDS
- Air Pollution
- Airline Passengers
- Airport
- ALA
- Alcohol
- Alcoholic Beverage
- Alerts
- Allergy
- Alli
- Aloe Vera
- ALS
- Alternative Medicine
- Aluminum
- Alzheimer's
- Amalgam
- AMD
- Ampyra
- Amygdala
- Anal Cancer
- And
- Anemia
- Angiogenesis
- Animal Protein
- Animals
- Anorexia
- Anthocyanins
- Anthrax
- Anti-Angiogenesis
- Anti-Obesity
- Antibacterial
- Antibiotic
Vitamins
Vitamin C supplement protects the liver
In mice injured with carbon tetrachloride, vitamin C supplements reduced liver enlargement dose-dependently, lowered liver enzymes and serum lactic acid, raised antioxidant enzyme activity and cut inflammation. The authors say it shows anti-hepatotoxic potential.
Supplements
Caffeine supplements may help weight loss
In a trial with 14 recreationally active subjects, caffeine taken before and after an hour of cycling produced greater energy expenditure and fat oxidation than exercise alone or rest, and also cut how much energy and fat participants ate at a following meal.
Food
What to eat or not eat to lower breast cancer risk
A rundown of dietary factors the author says may affect breast cancer risk: keeping calories and body mass down, limiting high-glycemic diets and omega-6 oils, favoring olive, sunflower and safflower oil, and getting EPA and DHA from oily fish.
Supplements
Want live longer? Take beta-hydroxybutyrate!
Beta-hydroxybutyrate extended the lifespan of the roundworm C. elegans by 20 percent, raised heat tolerance, partly prevented glucose toxicity, and delayed amyloid beta toxicity and alpha-synuclein aggregation. The authors link the effect to conserved stress-response pathways.
Supplements
Pequi oil treatment reduces toxicity of cancer chemotherapy
In mice with Ehrlich solid tumors, carotenoid-rich pequi oil protected the heart from doxorubicin damage better than vitamin C or E, which were ineffective and may raise the drug's kidney toxicity. Pequi oil also curbed tumor growth and boosted lymphocyte-dependent immunity.
Food
Pistachios Nutrition: Pistachios may help prevent diabetes mellitus
In a crossover trial, 54 people with prediabetes ate a diet with 57 grams of pistachios a day for four months and lowered fasting glucose, insulin and insulin resistance compared with the control diet, alongside gains in several cardiometabolic markers.
Supplements
What to eat to keep the skin healthy?
A report in Postepy Dermatol Alergol suggests vitamin E, vitamin A, B vitamins, micro- and macronutrients and fatty acids may also protect the skin, adding to earlier findings on green tea and vitamin C against UVB damage.
Vitamins
Multivitamin, protein supplements make you happier?
A study of US military and Coast Guard personnel found those using multivitamin or protein supplements reported being more awake, relaxed, cheerful and clearheaded, and rated their health, eating and fitness more highly. Users of protein plus purported steroid analogs reported more aggression.
Vitamins
Vitamin D helps in vitro fertilization
Among women aged 18 to 42 undergoing IVF, those with serum 25(OH)D of 20 ng/mL or above had a 31% clinical pregnancy rate versus 20% for those below, and were about twice as likely to conceive after adjustment for other confounders.
Supplements
Testosterone new weapon to fight obesity ***
A. M. Traish's review reports that long-term testosterone therapy in men with testosterone deficiency brings sustained weight loss, smaller waists, lower BMI and better body composition, which he attributes to improved mitochondrial function, more energy use and greater physical activity.
Food
Instant noodles could be heart-breaking
Analysing 11,000 South Korean adults aged 19 to 64, researchers found women eating instant noodles twice a week or more were more likely to have metabolic syndrome, even when leaner and more active. Healthy eating did not offset it, and the link was weaker among men.
Biotics
Bacillus Coagulans help irritable bowel syndrome
In a trial of 85 IBS patients given a Bacillus coagulans synbiotic or placebo for 12 weeks, the supplement cut abdominal pain and diarrhea frequency but not constipation. Nine months later, the pain reduction held while constipation frequency had risen.
Diet
What not to eat if you suffer irritable bowel syndrome
A review of diet in irritable bowel syndrome reports that soluble fiber such as pectin eases constipation but adds bloating and pain, and that carbohydrate malabsorption is often tied to symptoms. No IBS-specific dietary guidelines exist.
Phytochemicals
Apple pectin prevents heart attack
Rats fed apple pectin at 10, 40, 100 and 400 mg/kg a day showed smaller infarcts only at the two highest doses. The Korean authors say the fiber also blocked myocardial apoptosis, suggesting it protects against ischemic injury and not only against arterial occlusion.
Herbs
Green tea extract prevents wrinkle formation
Yonsei University researchers gave green tea extract to hairless mice exposed to UVB three times a week for 10 weeks. Doses of 100 and 200 mg/kg reduced wrinkle formation and raised antioxidant enzyme activity; 10 mg/kg did not. Vitamin C also cut the UV damage.
Supplements
Fucoxanthin prevents cervical cancer?
Chinese researchers report that fucoxanthin triggered apoptosis in HeLa cervical cancer cells through the PI3K/Akt pathway and lowered NF-kB activation. They suggest it may suppress tumor growth in vivo and could become an anti-cervical cancer drug.
Supplements
Natural supplements for type 2 diabetes mellitus
A review names alpha-lipoic acid and fenugreek as the natural remedies most likely to lower blood sugar, followed by ivy gourd, gymnema and vitamin E. The authors warn that vitamin E can be toxic at high doses.
3394 stories