Every athlete fears winter as the risks increase that we will need to take time off due to a cold or flu infection.
Ensuring we get sufficient vitamin D3 is one way to increase our chances of training through the colder winter months as this micronutrient plays important roles in our immune response and overall health.
And it has a role to play in optimal muscle function, which may provide an additional performance boost.
However, our body can struggle to produce this important vitamin during winter because we need to expose our skin to sunlight to produce vitamin D3. However, we are usually wrapped up in multiple layers while training outdoors, and we spend more time inside to stay warm between sessions.
References:
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