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Banting Diet and Magnesium Supplements

What you should know about Banting Diet and Magnesium Supplements

You need magnesium for many tasks. It’s involved in more than 300 chemical reactions in the body. Muscles need this mineral to contract; nerves need it to send and receive messages. It keeps your heart beating steadily and your immune system strong. Most people can get enough magnesium by eating foods such as green leafy vegetables, whole grains, beans, nuts, and fish.

Magnesium supplements are sometimes marketed as “super-pills” that can fix a long list of ailments such as muscle tension, low energy, and trouble sleeping. But think twice before you reach for a magnesium supplement.

Dr. Bruce Bistrian, chief of clinical nutrition at Beth Israel Deaconess Medical Center and professor of medicine at Harvard Medical School, says magnesium deficiency is very rare. “The kidney has an extraordinary ability to reduce magnesium loss in urine, and thus achieve magnesium balance on a wide variety of intakes,” he explains.

For people who have trouble absorbing magnesium from food — such as those with celiac disease, kidney problems, alcoholism, or chronic digestive problems — supplements can be useful. Medicines (including some “water pills” and antibiotics) can also interfere with magnesium absorption, making a supplement necessary.

But what about the claims that magnesium supplements can improve energy, sleep cycles, and body aches? Dr. Bistrian is sceptical. “There’s no evidence to my knowledge that it would be effective for those symptoms,” he says.

If you’re concerned about low magnesium, ask your doctor for a blood test. To maintain a healthy magnesium level, it’s best to get this mineral from food, especially high-fibre foods such as dark green leafy vegetables, unrefined grains, and beans. The recommended dietary allowance (RDA) of magnesium from food is 420 milligrams (mg) per day for men ages 50 and older. The RDA of magnesium from supplements is lower: 350 mg per day for men and women.

Magnesium-rich foods

Banting diet and Magnesium - roasted salted almondsBanting Diet and Magnesium Supplements - spinachBanting Diet and Magnesium Supplements - Bran FlakesBanting Diet and Magnesium Supplements - Red kidney beans

1 ounce / 30 grams of dry roasted almonds 80 milligrams
1/2 cup frozen spinach (cooked) 78 milligrams
3/4 cup bran flakes 64 milligrams
1 medium , with skin 48 milligrams
1/2 cup canned kidney beans 35 milligrams

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