Speaking of things you find in the sea, oysters have also been shown to contribute to weight loss thanks to their impressive zinc content. One study found that obese people who consumed 30 milligrams of zinc per day—the equivalent of just six raw oysters—had lower BMIs, weighed less, and showed improvements in blood cholesterol levels. If oysters aren’t your thing, spinach, pumpkin seeds, and mushrooms are also excellent sources of zinc.
The food options available on the DASH diet closely mirror the eating plan recommended in the US Department of Agriculture’s MyPlate, with a focus on whole foods, such as fruit and veggies; fat-free or low-fat dairy; whole grains; and lean meats, like fish and poultry. (3) Meanwhile, the plan requires cutting back on, or preferably eliminating, processed foods, like sugary drinks and packaged snacks, and limiting red meat, which in excess has been linked to poorer heart health and heart failure, according to a study published in the journal Nutrition, Metabolism and Cardiovascular Diseases. (4)
If you've been trying to eat healthy for a long time, you know how quickly you get sick of chicken breasts and broccoli. Break out of your diet rut with the Middle Eastern diet. It's based on the same principles as the Mediterranean diet but with more of an emphasis on plant-based foods and a different flavor profile. With all the tasty and healthy spices, you'll never get bored of making dinner and you'll get all the same heart-healthy benefits as its geographical cousin's diet.
6. Longer life. A recent meta-analysis in the British Medical Journal found the diet significantly improved health and led to a 9 percent reduction in death from heart disease, cancer, Parkinson's, and Alzheimer's. Other studies have found that the diet's healthy fats may lessen the inflammation and pain of rheumatoid arthritis and cut the risk of getting amyotrophic lateral sclerosis (Lou Gehrig's disease) by 60 percent.
And most important, she notes: Her blood sugar is at an all-time low. About a year ago, she went to the ER because her blood sugar levels rose to between 600 and 800 mg/dL — indicating she was at risk of a diabetic coma. But now, her postprandial glucose is between 150 and 200 mg/dL. “My sugars have been on a steady decline since March,” she says. Her A1C — a two- to three-month average of blood sugar levels — also went from 10.4 to 8.7, an improvement, though still in the range for type 2 diabetes, according to according to the ADA.
The original therapeutic diet for paediatric epilepsy provides just enough protein for body growth and repair, and sufficient calories[Note 1] to maintain the correct weight for age and height. The classic therapeutic ketogenic diet was developed for treatment of paediatric epilepsy in the 1920s and was widely used into the next decade, but its popularity waned with the introduction of effective anticonvulsant medications. This classic ketogenic diet contains a 4:1 ratio by weight of fat to combined protein and carbohydrate. This is achieved by excluding high-carbohydrate foods such as starchy fruits and vegetables, bread, pasta, grains and sugar, while increasing the consumption of foods high in fat such as nuts, cream, and butter. Most dietary fat is made of molecules called long-chain triglycerides (LCTs). However, medium-chain triglycerides (MCTs)—made from fatty acids with shorter carbon chains than LCTs—are more ketogenic. A variant of the classic diet known as the MCT ketogenic diet uses a form of coconut oil, which is rich in MCTs, to provide around half the calories. As less overall fat is needed in this variant of the diet, a greater proportion of carbohydrate and protein can be consumed, allowing a greater variety of food choices.
The DASH (Dietary Approaches to Stop Hypertension) diet is sometimes prescribed by doctors to help treat high blood pressure. Blood pressure is the amount of pressure that blood places against the walls of arteries. It will normally vary throughout the day but if it remains too high, this is called high blood pressure or hypertension. Untreated high blood pressure can lead to heart disease, stroke, congestive heart failure, kidney disease, and blindness. 
Unsurprisingly, the results showed that nothing had happened to the weight of the women receiving calcium or the placebo. However, the group which took the multivitamin lost more weight – about 3 kg more – and improved their health markers. Among other things, their basal metabolic rate (the rate at which the body burns calories when at rest) increased.
In this single-arm, 4-month diet intervention, an LCKD resulted in significant improvement of glycemia, as measured by fasting glucose and hemoglobin A1c, in patients with type 2 diabetes. More importantly, this improvement was observed while diabetes medications were reduced or discontinued in 17 of the 21 participants, and were not changed in the remaining 4 participants. Participants also experienced reductions in body weight, waist circumference, and percent body fat but these improvements were moderate and did not predict the change in hemoglobin A1c in regression analyses.
While the ketogenic diet is straightforward, it does require careful monitoring. You should begin by having your doctor check your blood glucose and ketone levels. Once you’ve been on the diet for some time and your body has adjusted to using fat for fuel, it’s still a good idea to see your doctor once a month for testing and to determine if your medications need any adjustments. And, even though you will most likely see your symptoms improve on this diet, be sure to regularly monitor your blood glucose at home, ideally before and after meals.
When you’re eating the foods that get you there (more on that in a minute), your body can enter a state of ketosis in one to three days, she adds. During the diet, the majority of calories you consume come from fat, with a little protein and very little carbohydrates. Ketosis also happens if you eat a very low-calorie diet — think doctor-supervised, only when medically recommended diets of 600 to 800 total calories.