Overview
The aim: Preventing and lowering high blood pressure (hypertension).
The claim: A healthy eating pattern is key to deflating high blood pressure – and it may not hurt your waistline, either.
The theory: Nutrients like potassium, calcium, protein and fiber are crucial to fending off or fighting high blood pressure. You don't have to track each one, though. Just emphasize the foods you've always been told to eat (fruits, veggies, whole grains, lean protein and low-fat dairy), while shunning those we've grown to love (calorie- and fat-laden sweets and red meat). Top it all off by cutting back on salt, and voila!
How does DASH Diet work?
DOS & DON'TS
Do: Serve up lean poultry and fish in moderation.
First, decide how much you want to read. The National Heart, Lung, and Blood Institute (NHLBI), which helped develop DASH, publishes free guides on the plan. One (PDF here) is 20 pages while another (PDF here) is six. Both take you through the same process of determining how many calories you should eat for your age and activity level, tell you where those calories should come from and remind you to go easy on salt. It's as simple as that.
For a 2,000-calorie diet, you should shoot each day (unless otherwise noted) for six to eight servings of grains; four to five each of veggies and fruit; two to three of fat-free or low-fat dairy; six or fewer of lean meat, poultry and fish, with one serving being equivalent to an ounce; four to five (a week) of nuts, seeds and legumes; two to three of fats and oils; and five or fewer (a week) of sweets. DASH suggests capping sodium at 2,300 milligrams a day and eventually working to stay at about 1,500 milligrams.
It's OK to ease into DASH. Try adding just one vegetable serving to a meal, and a fruit serving to another. Go (sort of) vegetarian by preparing two or more meat-free dishes each week. And start using the herbs and spices hiding in the back of the pantry – they'll make you forget the salt's not on the table. Meanwhile, you'll be encouraged to stick to a regular physical activity program.
As for weight loss, you're advised to ask your doctor about how to best tailor your plan. Because DASH emphasizes so many healthful foods, it can easily support weight loss. Just move more and eat slightly less, says the NHLBI.