Wednesday, October 05, 2011
9 simple foods that fight fatigue
by Hollis Templeton
September 6, 2011
Power through an afternoon slump by planning ahead. Pack these nutrient-rich foods and you won’t be reaching for coffee and sugar at 3 p.m.
Whether a late night, early morning, or intense workday has hijacked your energy, the forecast for the rest of the day is bleak: serious yawning followed by a search for a suitable alternative to the nap you’re craving. Instead of reaching for a sugary snack to help you stay awake during your morning meeting or power through an afternoon slump, try this stay-awake strategy: Snack on perfectly portable, fatigue-fighting foods, like whole grain crackers, walnuts, dark chocolate and watermelon. These nine picks will perk you up in no time.
The fatigue-fighter: Magnesium
If your 30-minute workout leaves you feeling like you just climbed Mt. Everest, you might be low on magnesium. When researchers at the U.S. Agricultural Research Service restricted intake of the mineral among 13 women ages 47 to 75 for four months, they found that those with magnesium deficiencies required more oxygen uptake during physical activity, used more energy, and tired more easily. Snack on 1/4 cup (6o mL) of pumpkin seeds and you’ll take care of about half of your recommended daily allowance, 310 mg for women (320 mg for ages 31-plus) and 400 mg for men (420 mg for ages 31-plus).
The fatigue-fighter: Probiotics
A stomach ache could spell sleepiness if you’re among the many who suffer from chronic fatigue syndrome (CFS). Because research suggests that an imbalance in microorganisms in the digestive tract is partially to blame for CFS, Swedish researchers tested the effects of eating yogurt rich in probiotics — “good bacteria” that aids digestive health — on 15 CFS patients. After eating about 6.8 ounces (210 mL) of yogurt twice daily for four weeks, 14 of 15 study subjects reported improvements in fatigue symptoms, physical health or mental health.
Wheat bran cereal
The fatigue-fighter: Fibre
You know that fibre can help you fight fat, and it turns out the nutrient can also help you feel more awake. Researchers at the University of Cardiff in Wales found that people who ate high-fibre wheat bran cereal suffered less emotional distress, experienced fewer cognitive difficulties, and were less fatigued than their counterparts who did not eat as much fibre. Study participants reported a 10 per cent increase in energy levels and reduced fatigue two weeks after increasing their fibre intake. The U.K. scientists credited these improvements to better digestive health.
The fatigue-fighter: Complex carbohydrates
Carbs are essential to boosting energy. To stay out of a slump, pick complex carbohydrates such as whole-grain crackers or a bowl of oatmeal over refined carbs, like foods made from white flour. The body digests and releases complex carbs slowly, keeping your blood sugar (and your mood) stable. Simple sugars, like those found in sweets and processed foods, on the other hand, provide a quick burst of energy, but cause your blood sugar to plummet just as quickly as it spiked.
The fatigue-fighter: Omega-3 fatty acids
Belgian researchers found that patients with CFS had low levels of omega-3 fatty acids, and those with the most severe fatigue symptoms exhibited the greatest deficiencies. Another study published in the American Journal of Clinical Nutrition suggests the alpha-linolenic acid, the omega-3 fatty acid found in walnuts, may help relieve depression symptoms, which commonly contribute to CFS. Up your omega-3 intake with a 1-ounce serving (1/4 cup, shelled) of walnuts for 190 calories.
The fatigue-fighter: Polyphenols
Researchers at Hull York Medical School in the United Kingdom provided 10 CFS patients with 1.5 ounces (45 g) of chocolate each day for two months. Study subjects received either dark chocolate or white chocolate that had been dyed brown. Those eating the dark chocolate reported significantly less fatigue. The scientists suggest that polyphenols in dark chocolate increase levels of the happiness-boosting brain chemical serotonin and thus reduce feelings of fatigue.
The fatigue-fighters: Caffeine and l-theanine
Coffee beats out tea when it comes to caffeine, but your cup of joe is missing an important fatigue-fighting ingredient: l-theanine. When paired with caffeine, the amino acid found naturally in tea improves cognition more effectively than caffeine alone, according to a study published in Biological Psychology. When study subjects consumed a combination of caffeine (150 mg) and l-theanine (250 mg), they reported a host of cognitive benefits, including improved alertness, memory, and reaction time as well as decreased mental fatigue.
The fatigue-fighter: Water
If you’re feeling fatigued on a hot day or after a sweaty workout, the cause may be as simple as dehydration, and the fix is as easy as enjoying a delicious slice of summer fruit. In a recent study of athletes, 92 per cent reported feeling fatigued when they limited water-rich foods and fluids for 15 hours. They also reported memory lapses and difficulty concentrating. If you can’t glug one more ounce of H2O, opt for leafy greens or melons. The bonus: Hydrating with water-dense foods won’t pack on the pounds. Enjoy a 1-cup (250 mL) serving of watermelon for only 46 calories.
Red bell pepper
The fatigue-fighter: Vitamin C
Vitamin C is more than a cold fighter — the antioxidant also helps reduce oxidative stress, the result of too many free radicals in the body, another contributor to CFS. In a small study of 44 adults published in the Journal of Orthomolecular Medicine, those who received 6 g of vitamin C every day for two weeks felt less fatigued. Study participants also had lower levels of the stress hormone cortisol. To get your C fix, enjoy 1 cup (250 mL) of sliced red bell pepper for only 29 calories and you’ll squeeze in almost 200 per cent of your daily recommended vitamin C — that’s more than the amount in an entire orange.