Research shows that the vitamins, minerals, and active compounds specific to certain fruits, vegetables, and even chocolate and red wine have an immediate and lasting impact on your mood, your health, your fitness.
1. When You’re Stressed…
Eat This:
1 Cup of Low-Fat Yogurt or 2 Tbsp of Mixed Nuts
Scientists in Slovakia gave people 3 grams each of two amino acids — lysine and arginine — or a placebo and asked them to deliver a speech. Blood measurements of stress hormones revealed that the amino acid–fortified public speakers were half as anxious during and after the speech as those who took the placebo. Yogurt is one of the best food sources of lysine; nuts pack tons of arginine.
Not That!
A Can of Soda
A study from the American Journal of Public Health found that people who drink 20 ounces of soda daily are three times more likely to be depressed and anxious, compared with those who drink less.
2. When You Want to Increase Your Metabolism…
Drink This:
Green Tea
Catechins, the powerful antioxidants found in green tea, are known to stoke your metabolism, making it burn hotter and torch more calories. A study by Japanese researchers found that participants who consumed 690 milligrams of catechins from green tea daily had significantly lower body-mass indexes and smaller waist measurements than tea-totalers (i.e., they avoid the stuff).
Not That!
Nothing
Skipping meals lets your body’s calorie-burning furnace go cold. Spread out snacks throughout the day. Try a cup of yogurt with fresh fruit or almonds between breakfast and lunch, and a hard-boiled egg or hummus with vegetables in the afternoon.
**3. When You’re Low on Energy… **
Eat This:
A Handful of Trail Mix
Raisins provide potassium, which your body uses to convert sugar into energy. Nuts stock your body with magnesium, which boosts metabolism and improves nerve and muscle function.
Not That!
Espresso-Based Drinks
Sure, the caffeine will perk you up, but the spike in blood sugar that follows — with anywhere from 16 grams (latte) to 59 grams (white chocolate mocha) of sugar coursing through your veins — will ultimately launch your own personal energy crisis. Stick to brewed coffee with one packet of sugar, max.
4. When You Need a Brain Boost…
Eat This:
Blueberries
Antioxidants in blueberries help protect the brain from free-radical damage, which could decrease your risk of Alzheimer’s and Parkinson’s diseases, and improve cognitive processing. Wild blueberries, if you can find them (or grow them!), have even more brain-boosting antioxidants than the cultivated variety.
Not That!
Ice Cream
Sugary foods incite sudden surges of blood glucose that, in the long term, cause sugar highs and lows, and make you as distractable as a toddler in the Disney store. And foods high in saturated fat can clog blood vessels and slow the flow of nutrients and blood to the brain.
**5. When You’re Under the Weather… **
Drink This:
Ginseng Tea, Hot or Iced
In a Canadian study, people who took 400 milligrams of ginseng a day had 25 percent fewer colds than people who popped a placebo. Ginseng helps kill invading viruses by increasing the body’s production of key immune cells.
Not That!
Caffeinated Beverages and Energy Drinks
Excessive caffeine messes with your sleep schedule and sabotages key immune agents. And insufficient sleep opens the door to colds, upper respiratory infections, and other ills. What’s more, caffeine can dehydrate you, and hydration is vital during illness: Fluids not only transport nutrients to the problem zones, but also carry away toxins.
6. When You Need to Wake Up and Go…
Eat This:
Eggs and Whole-Wheat Toast
Eggs are a great source of protein, and having them for breakfast sets you up for a perfect day of eating. Saint Louis University researchers found that people who eat eggs for breakfast consume 264 fewer calories the rest of the day than those who eat bagels and cream cheese.
Not That!
Bagel and Cream Cheese
At 500 calories and 20 grams of fat, this deli disaster is one of the worst ways to start your day. Sixty grams of fast-burning carbohydrates will cause a dip in energy and a spike in hunger, long before lunchtime. The same goes for croissants, danish, donuts, and pancakes.