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Nutrients boost immunity, disease resistance Vitamin D3 reduced chances for Covid-19 Earlier studies found vitamin D reduced chances of viral respiratory tract infections, and according to doctors, “Our statistical analysis suggests this may be true for Covid-19 infection.” In this first study to link low vitamin D with a positive Covid-19 test, doctors reviewed medical record data from 4,314 mostly non-white patients, average age 49, who were tested for Covid-19 in March and

Probiotics reduce anxiety, improve training Strenuous competition increases chances for psychological disorders, which probiotics may help prevent, leading to a new field of study, “psychobiotics.” In this first-of-its-kind study, 20 competitive football players, aged 18 to 21, took a beverage placebo or lactobacillus casei Shirota at 3 billion colony-forming units per day. At four weeks, doctors used electroencephalography (EEG) to measure brain waves and found, compared to

Matcha green tea burns fat during exercise In this innovative study, 12 women with regular menstrual cycles, average age 28, weighing 152 pounds, and 5’3” tall, volunteered for a walking test to determine their individual moderate exercise intensity to prepare for a later 30-minute treadmill test. The women began taking a placebo or three 1-gram capsules of matcha green tea powder per day for three weeks, with the final 1-gram dose two hours before the treadmill test, timed b

Krill oil for endurance To maintain normal muscle function during high-intensity exercise, the body must have sufficient stores of choline. In this study, 12 female and 35 male Ironman Norseman Xtreme and Spring Olympic Oslo triathletes, aged 25 to 61, took a placebo or 4 grams of krill oil per day for five weeks prior to their races. Overall, after the triathlons, choline levels declined between 15 and 34 percent, depending on the length of the race. Those taking krill oil a

Nutrients improve lung function and circulatory health DHA improves survival in lung disease For many reasons, the lungs can scar, stiffen, and become fibrous, making breathing difficult, a condition called interstitial lung disease (ILD). In this study, doctors followed the cases of 6,573 people hospitalized with ILD over a 12-year period, and separately analyzed CT scans of lung abnormalities in 10,193 participants in three other studies. Overall, higher levels of the omega

Better than standard management or drug treatment In this study, 67 people with migraine took one of three treatment paths: standard management of oral magnesium, riboflavin, and lipoic acid; standard management plus 150 mg of Pycnogenol® per day, or the prescription medication topiramate alone. After eight weeks, participants ranked and reported migraine symptoms. Overall migraine frequency decreased 61 percent for those taking Pycnogenol, compared to 33 percent for topirama

The macula of the eye contains the colorful pigmented carotenoids lutein and zeaxanthin that absorb damaging blue light, protecting vision. In this study, 16 Japanese men and women, aged 26 to 57, took 29 mg of lutein, 4 mg of zeaxanthin, vitamins C, E, copper, and zinc, per day. Beginning at eight weeks and continuing through the end of the study at 16 weeks, the concentration, or density, of macular pigment increased. Those with a body-mass index score less than 25 improved