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Why Vitamin D3 Is Crucial for Muscle Strength and Function - Genetic Nutrition

Why Vitamin D3 Is Crucial for Muscle Strength and Function

, by Sandesh Prasannakumar, 7 min reading time

Introduction


It is common knowledge that Vitamin D can support the health of bones through the facilitation of calcium absorption. However recent studies indicate that vitamin D is also involved in muscle strength and function, particularly vitamin D3 (cholecalciferol). Research has established that vitamin D levels are low among adults and that this has a negative effect on muscle function. Maintaining sufficient levels of vitamin D3 through sun exposure, diet, or supplements may help maintain muscle volume and force as one gets older.


Vitamin D3 Utilization in Muscles


Vitamin D3 supports muscles in several key ways:


  • Increases Protein Synthesis: Vitamin D signalling assists in the regulation of the expression of genes that are involved in the construction of muscle tissue after exercise or due to injury. This supplement also enhances muscle cell formation and development.

  • Regulates Calcium Levels: It is always better to ensure that calcium in muscle fibres is at an appropriate level, and this is where vitamin D comes in. Calcium plays a crucial role in muscle contractions and also in building muscles.

  • Reduces Inflammation: Vitamin D can reduce inflammation inside the muscles. This assists in curtailing muscular damage, pain, and weakness especially after rigorous exercising.

  • Influences Gene Expression: Vitamin D messengers affect some genes that are associated with muscle cell development, contractile activity, and metabolism.

  • Boosts Nerve Signaling: Vitamin D in sufficient levels enhances the flow of signals between the motor neurons and muscle fibers which enhances muscular control and speed of response.

Studies Associating Vitamin D3 with Muscular Strength


A wide range of studies highlight the vital role vitamin D3 plays in preserving muscle mass and performance, especially as you get older:


  • Research has found that lower levels of vitamin D are associated with higher rates of muscle loss and more physical impairment in older adults. People who have sufficient vitamin D levels have a lesser loss of strength and lean muscle mass as they age.

  • In middle-aged and older adults, higher blood vitamin D concentrations are related to enhanced performance of muscle strength, power and velocity tests in comparison with the deficiency group. Supplements often improve performance.

  • Specifically, it is revealed that those with lower levels of vitamin D have less muscle strength, force, jump velocity and height compared to those athletes with optimal levels of the vitamin. Vitamin D strengthens muscles and can enhance athletic performance.

  • Vitamin D through Sun, diet or supplement: Adequate vitamin D assists in preventing falls in the elderly through better muscles, balance and coordination.

Do I Need Vitamin D3 Supplements for Muscle Health?


Most doctors now suggest that people must take vitamin D supplements for the purpose of muscles, more so for people who are in their old age and athletes. Some recommend reasonable sunbathing (10-30 minutes several times a week) and diets of fatty fish such as salmon and tuna to meet the requirements.


Experts recommend 600-800 IU of vitamin D daily for adults today as compared to 200 IU in the past. On the other hand, various professionals opine that 1000-4000 IU a day is the effective dose for muscle strength and performance. The safe upper limit is 4000 IU per day.


People older than fifty years, those with a dark skin colour, or those who apply sunscreen on a daily basis should have their blood 25(OH)D levels checked because they are more prone to vitamin D deficiency. The blood vitamin D concentrations that are considered optimal by most scholars are between 40-60 ng/ml for the maintenance of muscle health and functionality. It takes about 2-3 months of supplementation to replenish Low levels.

Conclusion


Recent scientific data reveal that vitamin D3 is essential for muscles in the process of development and preservation, especially in the later stages of the life cycle. Maintaining sufficient blood vitamin D levels through sun exposure, vitamin D-containing foods, and supplementation assists optimum muscle mass, strength, power and control. Vitamin D3 can help prevent declines in muscle performance associated with age if the body receives enough of it. To ensure proper muscle health, one should get their Vitamin D levels checked and try to maintain the levels of 40-60 ng/ml throughout the year.

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Frequently Asked Questions


  1. Will using a vitamin D3 supplement increase my muscle mass?

They also have an understanding of the effect of vitamin D supplementation on strength and muscular performance in older adults with low vitamin D status. Research has established that vitamin D supplementation improves muscle strength and power in people with deficiency. Gains are also common among those who have sufficient amounts of vitamin D in their bodies.


  1. When will I start seeing improvements in my muscles due to vitamin D3?

As seen in most of the studies, it only takes 2-5 months of optimising your vitamin D through sun, food or supplements to experience enhanced muscular strength, power and function. These benefits, on the other hand, are cumulative and increase as adequate intake is maintained in the long term.


  1. Do I get vitamin D to build muscles if I go out more often in the sun?

Yes, moderate amounts of sun exposure between 10-30 minutes during the midday at least 3-4 times a week allows the body to produce vitamin D3 naturally. This aids in increasing blood concentration to the right levels that can help protect muscles and their capacity to perform. People with dark skin pigmentation have to spend more time in the sun to produce enough vitamin D.


  1. Which foods are rich in vitamin D to help my muscles as I grow older?

The richest sources of vitamin D include fatty fish such as salmon, tuna, mackerel, and sardines. It is present in small quantities also in egg yolk, beef liver, UV-irradiated mushrooms and foods that are naturally fortified with vitamin D, such as milk, yoghurt, orange juice and cereal. Cod liver oil also contains vitamin D in a good proportion.

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