Low Sodium Diet Foods: What to Eat and Avoid for Blood Pressure & Heart Health

Sodium is a necessary mineral that plays a role in maintaining your body's fluids and is also essential for sending messages to your nerves and for muscle contraction. However, in today's Indian diet sodium intake has become very high. The Indian consumes almost twice the recommended amount of 2,000 mg per day, with the majority of packaged items being heavily salted , and the rest being salted at the table, pickles (achaar), papads, instant noodles, and even at the restaurant. 

The impact is severe: hypertension, or high blood pressure, is a problem for more than 200 million Indians and excess sodium is a major culprit in the culprit of hypertension. One of the most direct evidence based measures which can be taken to help control hypertension, and therefore cardiovascular risk and the functions of the kidney and heart, is a low sodium diet. 

This comprehensive resource provides you with a full low sodium diet food list, best low sodium diet foods for Indian cooking, detailed instructions on a high blood pressure low sodium diet and a low sodium diet for hypertension, a specific low sodium diet for heart failure and even some of the best snacks for low sodium diet eating. This guide is for anyone who's been diagnosed with hypertension or anyone who just wants to eat healthier to lower their sodium intake. 

Why Sodium Matters: The Science of a Low Sodium Diet 

The main function of sodium in the body is to control the volume of fluids in the blood. High sodium levels increase retention of water to dilute it, which results in more water in the bloodstream, requiring the heart to pump harder and raise blood pressure against the arterial walls. 

High blood pressure is a major risk factor for stroke, heart attack, kidney disease and heart failure. Research indicates that you can expect to see the following for every 1,000 mg decrease in sodium per day: 

• In people with hypertension, the difference in blood pressure is about 5-6 mmHg. 

• Long term, risk of cardiovascular events goes down 17-25%. 

• Blood pressure in the filtration units in the kidneys drops, resulting in a slower progression of chronic kidney disease. 

Because a therapeutic low sodium diet is recommended for people with hypertension, heart failure, or kidney disease, the American Heart Association suggests that they limit their sodium intake to less than 1,500 mg per day. The top level of 2,300 mg/day (approx. 1 teaspoon of salt all day) applies to healthy adults only. 

Low Sodium Diet Food List: What to Eat Freely 

This list of low sodium diet foods includes low sodium foods for every type of low sodium diet that are naturally low in sodium; 

Vegetables (Fresh or Frozen, Unsalted) 

All fresh vegetables are also low in sodium and the foundation of any low sodium diet foods plan: 

• Amla, spinach, methi, kale (leafy vegetables) 

• Tomatoes, cucumbers, bell peppers, zucchini 

• Cruciferous vegetables such as cauliflower, broccoli, cabbage or beans. 

• Pumpkin, bottle gourd (lauki) and ridge gourd (turai). 

• Root vegetables such as beets, carrots, sweet potato, yam. 

• Onions, Garlic, Flavoured Garlic (no sodium added), Ginger 

Fruits (All Fresh Fruits) 

Fresh fruits contain no sodium, but are high in potassium, which helps to balance out the effect of sodium on blood pressure. Best choices for a low sodium diet: 

• Fruits such as bananas, oranges, guava, papaya, watermelon. 

• Pomegranate (seasonal), amla, mango (seasonal) 

• Fruits: Berries, grapes, pears, apples 

• Lemon and lime fruits — replace salt with plenty of it when cooking 

Whole Grains (Unsalted, Home-Cooked) 

• Brown rice, Daliya (broken wheat), Oats (Whole-grain or whole grain-rich foods). 

• Whole wheat atta (for rotis that are made at home without a lot of salt) 

• All naturally low sodium – Jowar, bajra, ragi. 

• Quinoa, barley 

Legumes (Home-Cooked from Dry, No Added Salt) 

• Lentils: All dals (masoor, moong, toor, urad) 

• Chick pea (chana), rajma, black-eyed pea (lobia) 

• Edamame, soy chunks (plain) 

Proteins 

• Fresh unprocessed chicken and fish: Low in sodium (and not marinated, brined, or pre-seasoned) 

• Eggs: Moderate sodium (about 70mg per egg) – OK for a low sodium diet food list. 

• Low sodium paneer: Home made paneer is less sodium than the commercial paneer 

• Nuts and seeds (unsalted): Almonds, walnuts, pumpkin seeds, flaxseeds, sesame – all good unsalted low sodium diet foods. 

Dairy 

• One of the best low sodium diet foods: Low-fat curd / yogurt (plain, unsalted) 

• Low-fat milk: Low sodium (100 mg per cup) — OK in low sodium diet 

• Paneer made at home and without salt (low fat milk) 

Healthy Fats 

• Extra virgin olive oil, cold pressed mustard oil, groundnut oil – all sodium free. 

• Unsalted butter or ghee (in small amounts) 

• Fresh coconut (in moderation) 

Foods to Avoid or Strictly Limit on a Low Sodium Diet 

The first and most crucial part of any low sodium diet is to identify and cut down on the high sodium foods which make up most Indian meals: 

By cutting out the top five items listed in this table, table salt overuse, papad, achaar, packaged namkeen and instant noodles, the average Indian can cut down his/her daily sodium intake by 1000-1500 mg, taking most people to the immediate levels of the recommended daily high blood pressure low sodium diet target. 

High Blood Pressure Low Sodium Diet: Specific Guidance 

The high blood pressure low sodium diet is aimed at a daily intake of less than 1,500-2,000 mg of sodium for people who have diagnosed high blood pressure. The best diet for blood pressure is the DASH diet, a low sodium diet for high blood pressure that also emphasizes potassium, magnesium and calcium: 

Potassium (counteracts sodium directly):

Potassium helps the kidneys to get rid of sodium, which directly reduces blood pressure. The top choices for potassium for a low sodium diet for blood pressure: 

• Banana (422 mg), sweet potato (694 mg), spinach (839 mg per cooked cup) 

• Coconut water (600 mg/cup), pomegranate, orange 

• Yogurt, white beans, lentils 

Magnesium (relaxes blood vessel walls): 

• Pumpkin seeds, almonds, dark chocolate (in small quantities), leafy greens, whole grains 

• A high blood pressure low sodium diet should include magnesium as it has been linked to elevated blood pressure when magnesium levels are low. 

Calcium (supports vascular muscle function): 

• Low fat dairy, ragi, sesame seeds (til), leafy greens, fortified plant milks 

The combination of sodium reduction + potassium increase is the most powerful dietary intervention for blood pressure. The low sodium diet food list above can help reduce blood pressure by 8-14 mmHg, which is equivalent to the action of certain anti-hypertensive drugs, when the diet is rich in potassium. 

Low Sodium Diet for Heart Failure: Special Considerations 

Heart failure patients must have the strictest low sodium diet, about 1,500 mg a day and even less, about 1,000 mg, in severe cases. This is because the failing heart is unable to pump blood effectively, causing fluid to back up in the lungs, legs and abdomen, which is exacerbated by the sodium retention. There are several important points to keep in mind about going on a low sodium diet with heart failure: 

Weigh yourself daily:

If a person gains 1-2 kg in weight in 24-48 hours, it is a serious sign of fluid retention. The first line of defence in your low sodium diet for heart failure is you! 

Look at all labels: Things that appear healthy, like whole grain crackers, low fat cheese, vegetable juice, can be quite high in sodium. For patients with heart failure, the sodium restricted diet plan will mainly consist of fresh, home-made, whole foods. 

Restrict fluid as directed: 

Other people with heart failure may also be taking a low sodium heart failure diet and have been prescribed a fluid restriction program. Take your cardiologist's instructions. 

Avoid all processed and packaged foods:

For the low sodium heart failure diet, there is no room for convenience foods. Using measured amounts of salt to cook is a must. 

Include potassium-rich foods cautiously:

Certain heart failure drugs (ACE inhibitors and potassium-sparing diuretics) can cause potassium levels to get high — contact your cardiologist before consuming more potassium along with your low sodium diet. 

Practical Tips: Following a Low Sodium Diet in an Indian Kitchen 

You don't have to compromise on the taste when cooking Indian dishes with less salt. Here are some tips to keep Indian food flavorful while still following a low sodium diet: 

Use acid as a salt substitute:

The "brightness" that salt gives dal, sabzi and chaat can be achieved by the addition of a squeeze of lemon or a splash of tamarind without any sodium. This is the #1 best flavour trick in any low sodium diet foods plan. 

Build flavour with spices and aromatics:

Complex flavours from cumin, coriander, turmeric, ginger, garlic, cardamom, cloves and curry leaves. A healthy, low sodium diet food list meal will require significantly less added salt. 

Cook dal and grains without salt, season minimally at the end:

Focusing on reducing sodium by cooking grains and legumes in unsalted water and adding a small measured amount of salt at serving time will significantly reduce sodium levels with little effect on taste perception. 

Make your own condiments: 

Sodium rich commercial chutneys, pickles and sauces. Home-made green chutney (coriander, mint, lemon, green chilli — no salt), tomato-on-onion raita and tamarind chutney (minimal salt) add to the taste in a high blood pressure low sodium diet. 

Rinse canned goods thoroughly: 

Rinse canned chickpeas, beans or tomatoes under water for 60 seconds, which removes 30-40% of the sodium (a fix when fresh is not an option). 

Measure, don't pour:

People tend to be very underestimating in how much salt they put in. The easiest way to put the low sodium diet plan into action is to use a ¼ teaspoon per portion and limit your sodium intake to no more than ½–¾ teaspoon per day for cooking. 

Conclusion 

There is one relationship in nutrition science that has always been demonstrated, and one dietary intervention which is almost universally agreed upon by the medical community — that of sodium and blood pressure. The easiest thing to change for Indian families is to prepare more meals at home, use spices and lemon juice to flavor, and opt for fresh whole foods over convenience items like packaged snacks and restaurant food. 

Create your everyday plate using the foods listed in this guide, from the low sodium diet. Purchase the best low sodium diet foods in your kitchen: fresh vegetables, home cooked dals, fresh fruit, unsalted nuts and plain curd. Store the snacks for low sodium diet list on your phone for shopping. For those who have hypertension, a low sodium diet for hypertension, or heart failure, a low sodium diet for heart failure, this is a guide you can use daily in addition to your actual targets set by your doctor. 

Frequently Asked Questions (FAQ) 

What is a low sodium diet and who needs it?

Low sodium diets have a limit of no more than 2,000 mg of sodium per day for healthy adults or 1,500 mg for adults with heart disease, kidney disease or hypertension. It is recommended for people who have high blood pressure, cardiovascular disease, kidney disease, oedema (fluid retention) and/or a family history of cardiovascular disease. A low sodium diet is also preventive for the general population as most Indian diets are presently beyond the healthy sodium levels. 

Which Indian foods are best for a low sodium diet food list?

The best Indian foods for low sodium diet include fresh vegetables (all varieties), fresh fruits (banana, guava, orange, coconut water—good source of potassium, home-cooked dal and legumes (no added salt), whole grains (ragi, jowar, brown rice), eggs, fresh fish and chicken (unmarinated), home-made curd, and unsalted nuts and seeds. Herbs, spices and aromatics are key ingredients in Indian cooking, and its diet-friendly nature makes it easy to follow a low sodium diet foods approach. 

What are the best snacks for a low sodium diet?

Snacks that are low in sodium include: unsalted roasted chana, fresh fruits, unsalted makhana, plain curd, unsalted nuts, fresh vegetable sticks with unsalted hummus, and sprouts chaat without salt. All of these have less than 100mg of sodium per serving — which is 300–500mg in a typical Indian packaged snack. 

How does a low sodium diet for hypertension work?

The mechanism of action for a low sodium diet for hypertension is to help reduce the increase in blood volume that is normally associated with sodium retention. The less blood, the less pressure on the arterial walls. When combined with increased potassium intake (which causes the kidneys to excrete more sodium), a high blood pressure low sodium diet can reduce systolic blood pressure by 8–14 mmHg — a clinically significant reduction that may reduce or delay the need for antihypertensive medication. 

Is a low sodium diet for heart failure different from a regular low sodium diet?

Yes, a low sodium diet for heart failure is more strict, and is usually under 1,500 mg of sodium per day and sometimes less than 1,000 mg in severe cases. It could also include a fluid restriction in addition to the sodium restriction in the diet. The effects of breaking the sodium target in heart failure are more immediate and dangerous (e.g. acute fluid overload, hospitalisation), compared to producing the effects of a general low sodium diet for hypertension prevention. Always use your cardiologist's individual sodium goal when treating heart failure.