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🇮🇳 Indian Astronaut Returns to Space After 41 Years: Shubhanshu Shukla Aboard Axiom-4 Mission to ISS

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In a landmark moment for India's space ambitions, Indian astronaut Shubhanshu Shukla has blasted off to the International Space Station (ISS) as part of the Axiom-4 mission , marking the country's return to human spaceflight after a 41-year hiatus . This historic launch from NASA’s Kennedy Space Center in Florida has not only reignited national pride but also officially kickstarted India’s human spaceflight programme . The mission, operated by Axiom Space , includes a four-member international crew that will spend 14 days in orbit , conducting scientific research, outreach programs, and various commercial activities. This momentous occasion places India among a select group of nations capable of sending humans into space and reflects the growing prowess of the Indian space sector . A New Chapter: Shubhanshu Shukla and India’s Astronautical Comeback The last Indian to go to space was Rakesh Sharma in 1984, aboard the Soviet spacecraft Soyuz T-11. Now, in 2025, Shubhanshu...

Lower-Sodium Salt Substitutes (LSSS) – A Step Towards Healthier Living

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Lower-Sodium Salt Substitutes (LSSS) – A Step Towards Healthier Living

Introduction:

Excessive sodium consumption is a major public health concern as it significantly increases the risk
hypertension (high blood pressure) and cardiovascular diseases (CVDs). In response, the World Health Organization (WHO), through its Department of Nutrition and Food Safety (NFS), has issued new guidelines promoting the use of Lower-Sodium Salt Substitutes (LSSS) as an effective way to reduce sodium intake while maintaining food palatability.

Composition of LSSS:

Unlike regular salt, which is composed primarily of sodium chloride (NaCl), LSSS contain a reduced amount of sodium and often substitute it with other minerals. The key components include:

  • Potassium Chloride (KCl): The most common substitute for sodium chloride, providing a salty taste while reducing sodium levels.
  • Magnesium Salts: Some variants contain magnesium compounds to enhance taste and nutritional benefits.
  • Other Additives: Some LSSS formulations may include amino acids or other flavor enhancers to maintain a taste profile similar to regular salt.

Health Benefits of LSSS:

LSSS have been introduced as an effective intervention to limit sodium consumption to below 2 g/day, as recommended by the WHO. The key health advantages include:

  1. Lower Risk of Hypertension:

    • High sodium intake is directly linked to high blood pressure.
    • LSSS help regulate blood pressure by reducing sodium intake.

  2. Reduced Risk of Cardiovascular Diseases (CVDs):

    • High sodium consumption increases the likelihood of heart attacks and strokes.
    • Studies show that LSSS can help reduce these risks by improving blood circulation.

  3. Better Fluid Balance and Kidney Health:

    • Potassium in LSSS aids in fluid regulation and muscle function.
    • Helps balance electrolytes, reducing strain on the kidneys.

  4. Stroke Prevention:

    • Excess sodium intake leads to vascular damage, increasing the risk of strokes.
    • LSSS with potassium chloride may help lower stroke incidence rates.

Potential Risks and Concerns:

Despite their benefits, LSSS are not suitable for everyone. There are some concerns associated with their consumption, particularly for individuals with pre-existing medical conditions:

  1. Risk of Hyperkalaemia (High Potassium Levels):

    • Individuals with kidney disease, heart conditions, or those on certain medications may struggle to excrete excess potassium.
    • High potassium levels can lead to irregular heart rhythms (arrhythmia) and muscle weakness.

  2. Taste Difference:

    • Some individuals may find LSSS to have a slightly bitter or metallic taste due to potassium chloride.
    • Adaptation to the taste may take time, but manufacturers are working on improving flavor profiles.

  3. Affordability and Availability:

    • LSSS can be more expensive than regular table salt, making them less accessible to low-income populations.
    • Widespread adoption may take time due to cost concerns.

WHO Recommendations and Future Outlook:

  • The WHO encourages global food manufacturers and restaurants to incorporate LSSS in food products.
  • Governments are advised to educate consumers on the benefits of reducing sodium intake.
  • Research continues to optimize LSSS formulations to improve taste and affordability.

Conclusion:

Lower-Sodium Salt Substitutes (LSSS) represent a promising public health intervention to combat hypertension and cardiovascular diseases. While they offer significant benefits, individuals with kidney issues or those at risk of hyperkalaemia should consult a doctor before switching. Public awareness, affordability, and taste adaptation will play a crucial role in the widespread acceptance of LSSS in the future.


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