许多加工食品含大量的盐，这些盐再加上糖能让廉价的工业食品变得味道鲜美。一份Jack in the Box（美国知名快餐连锁店）的脆皮鸡柳中的钠含量高达1580毫克，超过政府建议50岁以上人群每天摄入的总量。大量摄入盐会引起高血压，增加心脏病发、中风和肾脏疾病的风险。
Because sodium in our diet is often only a small portion of seasoning salt from the kitchen, so get rid of processed foods will naturally reduce salt intake. But salt is really the better to eat you?
Blood sodium concentration is controlled within a very narrow range. As intake increases, the kidneys will discharge excess parts. When the intake is reduced to less than 3 to 4 grams per day, the body will be compensated by activating a powerful hormone, the hormone called renin - angiotensin system (RAS), which helps the kidneys seize salt . 65 The problem is that RAS receptors not only exist in the kidney, it is also present in fat cells, muscle, pancreas, blood vessel walls and other places. This system is too active cause fat cell dysfunction, insulin resistance and inflammation, and it is these fundamental issues will be obesity and diabetes, heart disease linked. Inhibition of RAS, such as converting enzyme (ACE) inhibitors are widely used by angiotensin, can reduce the risk of these two deadly diseases, although the impact of drugs on blood pressure, there is far more good than harm.
Therefore, over-limit salt intake may play a counter, this possibility has been supported by several studies. Cochrane Collaboration (an international organization to sponsor scientific basis for the systematic evaluation) examines the period from 1950 to 2011, comparing low-salt and high-salt diet randomized clinical trials 167. They found that whites hypertension, reducing sodium intake caused only reduced by 1 mm Hg systolic blood pressure, diastolic blood pressure did not decrease. African Americans and hypertension was greater improvement in blood pressure, lower blood pressure amplitudes ranging from 2 mm to 6 mm Hg. However, reducing sodium also increases the activity of the RAS, adrenaline, cholesterol and triglycerides, indicating that this may exacerbate insulin resistance.
Published in the "New England Journal of Medicine," a recent study of about 10 million people for an average of four years of follow-up survey, compared to the lower or higher sodium intake and the study population, intake control crowd in the range of 3 to 6 grams per day - so the intake has far more than the current recommended intake - the risk of fatal cardiovascular disease or mortality are lowest. 68 These findings attracted widespread media attention, but their interpretation must be carefully carried out. There is risk of heart disease were more likely to follow the doctor's orders, reducing salt intake. So in this observational study, the population increased risk of low-salt diet, may reflect the already existing disease, rather than the influence of sodium itself produced.
About optimum intake of sodium is also inconclusive. But one thing seems clear: In addition to all refined carbohydrates (particularly harmful to heart health), fast food, junk foods also contain excess salt. For people with high blood pressure or other risk factors for special, low sodium intake significantly reduced blood pressure, blood pressure fall from the sky is one of the major public health goal. But for all others, the sodium from the average level reduced to very low levels of blood pressure seems no benefit and may cause metabolic problems. More effective ways to control blood pressure may reduce added sugar and other refined carbohydrates 70, reduce stress and increase physical activity, these are "always hungry" part of the solution.
In our diet plan, the total daily sodium intake of most people no more than 3 grams (depending on your diet plus how much salt), lower than the US average of nearly half a century. But if you want to follow a low sodium diet, our recipes and diet plans can easily be adjusted to meet your needs.
Comedy lose weight piece:
Q: I attached for five days, eat fruit, drink plenty of water, not seen thin, but fat, who know that this is why?
God replies: edema.
