Growth Hormone Effects: (71% in 12 Weeks)

Vitamin D (specifically D3) is a master hormone regulator that optimizes ALL 8 anabolic hormones! It directly increases growth hormone's

, and increases its

indirectly by

, which is a potent growth hormone stimulator.

Vitamin D is the only supplement that increases both the number and size of growth hormone bursts, boosting baseline growth hormone levels by an average of

. To emphasize the importance that, anything that elevates your

levels of an anabolic hormone is extra beneficial because it's long-lasting rather than a temporary spike. Vitamin D should be taken together with Vitamin K (see the "Recommendation" section below), and its effects are enhanced if taken with

as well (because Magnesium helps

, making it more efficient and effective).

Testosterone Effects: (+20% Long-Term)

Vitamin D boosts

in two ways. First, it's a natural anti-aromatase. And second, it binds directly to receptors on Leydig cells, making them release testosterone even without luteinizing hormone or lactic acid present,

by an average of

when taken long-term (up to a year).

Thyroid Hormone Effects: (+47% in 8 Weeks)

Vitamin D increases the

, and increases

, and

the antibodies that destroy T3, boosting active thyroid hormone by

of supplementation.

IGF-1 Effects: (+29% in 12 Weeks)

Vitamin D

baseline IGF-1 levels by

by increasing its production in the

.

Insulin Effects: (+28% Sensitivity)

Vitamin D slightly and temporarily increases insulin release by

on the pancreas... and it increases insulin sensitivity by

(minimizing fat storage while also

its muscle building effects) by lowering levels of

(which

insulin sensitivity), and by

.

Ghrelin Effects: (+71% in 12 Weeks)

Vitamin D

of ghrelin at the DNA level, increasing how much is released between meals by

within 12 weeks. It does so

increasing appetite though, because it simultaneously boosts the anti-hunger hormones

just as much, giving you all the anabolic benefits of ghrelin without making you more hungry!

Estrogen Effects: (-34% in 8 Weeks)

Vitamin D lowers estrogen levels by

by blocking the aromatase enzyme that converts testosterone into estrogen.

Cortisol Effects: (-40% in 2 Weeks)

Vitamin D

called 11-βHSD1 in the adrenal gland that's needed to produce cortisol, such that just

of vitamin D supplementation can

cortisol levels by

Other Benefits:

Dosage & Timing:

• Dose: ~50mcg daily

• Timing: Ideally in the mornings, with food

Recommendation:

from

. Vitamin D and Vitamin K work together in the body. One example is with calcium — Vitamin D shuttles calcium from your digestive system into the blood... then Vitamin K takes it from there, shuttling the calcium into your bones. So too much Vitamin D without Vitamin K has the potential to leave deposits of calcium in your arteries, which increases the risk of things like blood clots.

that taking Vitamin D and K together improves bone density significantly more than taking either separately. It's also been shown that taking Vitamin D and K together

from viral infections and helps to prevent multiple long-term health risks.

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