Fears of high cholesterol were frequently voiced up until the mid-1990s. However, more recent research has shown that the distinction between high- and low-density lipoprotein ('good' and 'bad' cholesterol, respectively) must be addressed when speaking of the potential ill effects of cholesterol. Different types of dietary fat have different effects on blood levels of cholesterol. For example, polyunsaturated fats tend to decrease both types of cholesterol; monounsaturated fats tend to lower LDL and raise HDL; saturated fats tend to either raise HDL, or raise both HDL and LDL; and trans fat tend to raise LDL and lower HDL.
“Pistachios are a great addition to a diet aimed to help one lose weight because they're one of the lowest-fat and lowest-calorie snacks that offer the most nuts per serving (49 pistachios per 1-ounce serving) compared to cashews (18) and walnuts (14 halves),” says Shaw. Get in-shell pistachios because the leftover shells may provide a visual cue for portion control to curb intake.
If you haven't jumped on the mushroom bandwagon yet, now's the time. Researchers from the University of Buffalo discovered that portobellos could help you lose weight thanks to their ability to regulate blood sugar (which can help prevent diabetes) and balance hormones. They also concluded that the fungus may help you exercise for longer periods of time, so use it as vegetarian-friendly burger base or toss into a tasty breakfast frittata.
“Fish is a great source of satiating protein and is typically lower in calories than other animal proteins,” says Maggie Moon, MS, RD, author of The MIND Diet. “Sardines are a sustainable seafood choice, which are packed with heart-healthy and brain-healthy omega-3 fats,” she says. These healthy fats can help decrease inflammation and improve your mood while dieting.
How would you like to take all the great weight-loss results you’ve just read about—and double them? That’s what happens when you supplement your diet with a combination of vitamin D and calcium, according to a Nutrition Journal study. Just four weeks into the 12-week experiment, subjects who had taken these two nutrients—found in abundance in some yogurts—lost two times more fat than the other group! To get similar results at home, start your day with one of these best yogurts for weight loss.
Greek yogurt is an extremely satiating breakfast or snack, thanks to its thick, creamy texture and a whopping 17 grams of protein (nearly three times more than is in an egg, in fact). A study from the journal Appetite found that people who ate a high-protein yogurt snack three hours after lunch felt fuller and ate dinner later than the other participants. And on top of that, other studies suggest that the acids produced during yogurt fermentation might help increase feelings of fullness.
These support bone health and have other possible benefits. Dairy products are the best sources of calcium, but you can also get it from fortified foods as well as canned salmon, sardines, dark leafy greens, and most tofu. If you can’t get the recommended 1,000 to 1,200 milligrams a day from food, take a calcium supplement. It’s hard to consume enough vitamin D from foods (the RDA is 600 to 800 IU a day, though other experts advise more). Thus, many people—especially those who are over 60, live at northern latitudes, or have darker skin—should consider taking a supplement.