Jeffrey Salazar
The keto diet is a popular approach to weight loss, but it can be tricky for beginners to understand the value of increasing salt intake. While most health authorities recommend limiting salt, people on keto may need more salt in their diet. This is because the keto diet restricts carbohydrates, which lowers insulin levels and promotes water loss, leading to increased sodium excretion through urine. As a result, keto dieters may experience symptoms like fatigue, brain fog, dizziness, and muscle cramps, commonly known as the 'keto flu.' To prevent these side effects, keto dieters are advised to increase their sodium intake by consuming salted nuts, bone broth, or adding salt to their meals. However, it is important to note that those with underlying medical conditions should be cautious about increasing their salt intake.
| Characteristics | Values |
|---|---|
| Salt intake on keto | Increased salt intake is recommended on keto |
| Reason for increased salt intake | Lower insulin levels on keto lead to higher sodium excretion through urine |
| Recommended salt intake | 4,000-7,000 mg of sodium (2-3 teaspoons of salt) per day; some sources recommend 2,000-4,000 mg of sodium |
| Salt sources | Natural sources like Celtic sea salt, pink Himalayan salt, and dulse salt are recommended over table salt |
| Salt intake and health | Excess salt intake may not be harmful on keto due to lower insulin levels and higher sodium excretion; however, those with certain medical conditions may need to restrict salt intake |
| Symptoms of low salt intake | Muscle cramps, fatigue, brain fog, dizziness, digestive issues, etc. |
| Preventing low salt intake | Consume salty bone broth, salted nuts, olives, pickles, etc.; add salt to meals and lemon water |
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What You'll Learn
Keto may require more salt due to increased sodium excretion
The keto diet involves a metabolic shift from burning sugar to burning fat for energy. This shift increases the amount of sodium in the metabolism, which leads to an increased need for salt in the diet.
The keto diet typically involves a significant reduction in carbohydrate intake, which results in lower insulin levels. Insulin plays a role in regulating sodium levels in the body, and when insulin levels drop, the kidneys respond by excreting more sodium and water. This increased sodium excretion can lead to a depletion of sodium levels, resulting in various unpleasant symptoms associated with ""keto flu,"" such as fatigue, brain fog, dizziness, and digestive issues.
To prevent these symptoms and maintain adequate sodium levels, individuals on the keto diet are often advised to increase their salt intake. This can be achieved through seasoning meals with salt, consuming salted foods like nuts or sausages, drinking bone broth, or using salt supplements like SaltStick Caps.
It is worth noting that the standard American diet typically includes high levels of sodium due to the consumption of processed foods. On the other hand, the keto diet emphasizes whole, unprocessed foods, which naturally contain lower levels of sodium. Therefore, the increased sodium excretion associated with the keto diet may be counterbalanced by the lower sodium intake from whole foods.
While increasing salt intake on keto may be recommended, it is important to note that individuals with certain medical conditions, such as salt-sensitive hypertension, congestive heart failure, or kidney disease, should be cautious and consult their healthcare providers to determine their optimal sodium intake.
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Insulin helps retain sodium, which is lowered by keto
Insulin plays a significant role in sodium metabolism, with its primary action exerted on the kidney. Increases in plasma insulin concentration stimulate sodium reabsorption by the distal nephron segments. This relationship between insulin and sodium is particularly evident in situations like sodium wasting in poorly controlled diabetics and hypertension in obesity.
The ketogenic diet, a carbohydrate-restricted dietary approach, has been shown to improve insulin resistance and reduce insulin levels. This improvement in insulin sensitivity leads to lower insulin levels, which, in turn, can influence sodium levels in the body.
When following a ketogenic diet, the body's metabolism shifts from burning sugar to burning fat, resulting in increased sodium excretion. This metabolic shift, coupled with the reduced insulin levels associated with the keto diet, can lead to lower sodium retention. As ketones build up in the body and are excreted through urine, they take water and sodium with them, potentially depleting sodium levels.
Additionally, the keto diet typically involves a significant reduction in processed foods, which are a major source of sodium in the standard Western diet. This shift in dietary composition can further contribute to lower sodium intake and retention.
However, it is important to note that the relationship between insulin, sodium, and the keto diet is complex. While lower insulin levels may lead to decreased sodium retention, other physiological pathways may counterbalance this effect. The long-term impact of increased salt intake on health is still unclear, especially for individuals with underlying medical conditions. Therefore, while the keto diet may lower insulin levels and impact sodium retention, it is always advisable to consult a healthcare professional before making significant dietary changes and to individualize recommendations based on personal health status and needs.
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Salt can help prevent keto flu symptoms like fatigue
The keto diet is associated with an increased need for salt. This is because a ketogenic diet typically involves lowering insulin levels, which can result in more sodium being excreted from the body through urine. As a result, people on keto may need to consume more salt to maintain adequate sodium levels.
Maintaining adequate sodium levels is important for preventing keto flu symptoms like fatigue, brain fog, dizziness, and digestive issues. Sodium is a crucial mineral that helps control water retention and balance in and around cells. Low sodium levels can lead to various complications, including restlessness, brain fog, fatigue, muscle cramps, and tummy disorders.
To prevent keto flu symptoms, it is recommended to increase sodium intake by consuming salted foods or adding salt to meals. Bone broth, salted nuts, sausages, and pickled foods are some examples of salted foods that can help replenish sodium levels. Additionally, drinking lemon water with a dash of salt can be a refreshing way to increase salt intake.
It is worth noting that the recommended daily sodium intake for those on keto is generally around 4,000 to 7,000 milligrams (about 2 to 3 teaspoons of salt). However, this may vary depending on individual needs and medical conditions. For those with salt-sensitive hypertension, congestive heart failure, or kidney disease, it may be advisable to limit sodium intake to 4 grams per day or consult with a medical professional.
While increasing salt intake on keto can help prevent keto flu symptoms like fatigue, it is important to monitor sodium levels and ensure adequate hydration and electrolyte balance. Consulting with a healthcare provider before making any significant dietary changes is always recommended.
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Salt is needed for muscle function and to avoid cramps
Salt, or sodium, is an essential electrolyte that helps regulate muscle contraction, nerve function, and blood volume. It also plays a vital role in maintaining fluid balance in the body. During exercise or strenuous activity, the body loses sodium through sweating, which can lead to a decrease in blood sodium levels. This, in turn, can cause muscle cramps, as the muscles contract and increase pressure on the nerve terminals, resulting in pain.
While the exact cause of muscle cramps is still not fully understood, there is some evidence to suggest that low salt levels, or hyponatremia, can be a contributing factor, especially during long runs or intense workouts. To prevent these types of cramps, it is recommended to consume adequate sodium before and after workouts.
When following a keto diet, it is important to note that the reduction in carbohydrate intake can lead to a decrease in insulin levels, which, in turn, can affect sodium reabsorption by the kidneys. As a result, more sodium may be excreted through urine, and there may be an increased need for salt intake. However, the recommended daily sodium intake while on a keto diet varies from person to person and should be determined in consultation with a medical professional.
It is worth noting that excessive salt intake has been associated with negative health outcomes, particularly in older individuals. Studies have suggested that high-salt diets may contribute to muscle strength decline and impaired physical performance, especially in elderly women. Therefore, while salt is necessary for muscle function and to prevent cramps, it should be consumed in moderation, and any changes in salt intake should be made under the guidance of a healthcare provider.
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Salt sources vary in healthiness and naturalness
Some people choose to increase their sodium intake by sprinkling dried dulse flakes or dulse salt over their food. Dulse is a type of seaweed that is a great source of sodium, calcium, potassium, and iron.
While it is important to be cautious about increasing salt intake, especially for those with underlying medical conditions, there are healthier ways to increase your sodium and electrolyte intake than turning to processed foods. Bone broth, for example, is a great source of sodium and protein. Eating pickled foods such as olives, pickles, and sauerkraut can also help increase your sodium intake.
If you are experiencing muscle cramps, this may be a sign of low electrolyte levels, which can be remedied by consuming a sugar-free electrolyte drink or adding more salt to your diet.
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Frequently asked questions
Restricting carbs lowers insulin levels, which can further promote water loss. When insulin levels drop, the kidneys react by excreting more sodium and water. This can lead to dehydration and low electrolyte levels, causing muscle cramps, digestive issues, and even keto flu.
Consuming about 4,000 to 7,000 milligrams of sodium (about 2 to 3 teaspoons of salt) per day is usually recommended on keto. However, if you have salt-sensitive hypertension, congestive heart failure, or kidney disease, it is advised to limit sodium intake to 4 grams per day.
You can add a dash of salt to your lemon water or morning coffee. Include more salted foods like sausages, salted nuts, canned goods, and salted almonds. You can also drink bone broth, eat pickled foods, or use saltier salts like pink Himalayan or Celtic sea salt.
Signs of low sodium and electrolyte levels on keto include muscle cramps, fatigue, brain fog, dizziness, digestive issues, and keto flu symptoms like nausea and constipation.
