Vitamin D contributes to the proper use of calcium and magnesium, especially for the maintenance of bone integrity
Combating vitamin D deficiency
The baseline study, SU. VI. (Supplémentation en VItamines et Minéraux AntioXydants - antioxidant vitamin and mineral supplementation) highlights the fact that a significant proportion of French people have difficulty satisfying their minimum vitamin requirements.
A study by CREDOC has shown that more than 82% of French people do not attain their minimum vitamin D needs and are also more than 32% deficient in vitamin C, 25% in vitamin E, and 21% in vitamin B9 (4).
Moreover, during winter, our body is commonly deficient in vitamin D. At this time of the year, we are less exposed to the sun's ultraviolet rays, which usually allow us to synthesise vitamin D. Hence, the purpose of supplementation is to increase our reserves.
Boosted athletic performance
Intense training is linked to the increase of cortisol levels in the body. This hormone has an anti-anabolic effect and also causes a drop in testosterone levels. This has negative effects on the quality of recovery and muscle development.
Vitamin D consumption is associated with an increase in testosterone secretion and a decrease in myostatin, which is a catabolic hormone for our muscles (5-6-7). Its effect thus makes it possible to compensate for some of the negative effects of cortisol.
Moreover, a study has shown that vitamin D supplementation among athletes compared to a placebo increased their thigh strength by 5kg (2kg for those on the placebo) in just four weeks (8).
Statistical analyses also show that progression is always faster with high rather than medium vitamin D levels (9).
Finally, vitamin D helps the body use calcium and magnesium to maintain bone integrity and muscle functioning.
The benefits of vitamin D on longevity!
After many years of scientific research, vitamin D is now recognised as the longevity vitamin. (10-11-12)
Research has been grouped together to allow us to analyse this subject via the figures: an initial group of several studies carried out over a period of 8 years highlighted the increasing mortality risks for men and women with normal vitamin D levels (28ng per ml of blood) of:
- 24% for people with an average level (19ng/ml).
- 53% for people with a low level (10ng/ml).
- 108% for people with a very low level (7ng/ml) (13).
On the other hand, it has been found that over a period of 6 years, men and women taking daily supplements of 400 to 800 IU of vitamin D experienced an 8% reduction in mortality.
Our dosage of Nutrimuscle Quali®-D Vitamin D3 corresponds to 2000 IU of Vitamin D.
Vitamin D aids fat loss
Several scientific studies show the value of vitamin D supplementation in optimising fat loss.
For women, 12 weeks of vitamin D supplementation resulted in a 2.7kg weight loss compared to only 500g for those taking the placebo. (14)
Similarly, when restricting calories, the higher your vitamin D intake is, the greater your fat loss will be. (15)
In addition, vitamin D plays a role in increasing basic metabolism and fat oxidation. (16-17)