HGH is a growth hormone and according to webmd it is produced by the pituitary gland. It promotes growth in children and adults, but has many other benefits.
It’s also responsible for body fluids, muscle and bone growth as well as the metabolism of fat and sugar and has effects on the heart function. In short doses HGH helps you get a better looking skin –so it has anti-ageing benefits.
Because of the muscle regeneration properties and building muscle mass faster it’s very popular in the fitness and beauty industry – as a synthetic version.
As in most countries, HGH is classified as a prescription only drug (also in Australia) and has to be taken under supervision of a doctor . It’s also illegal to posses or import and companies do not have a permission for advertise it in public.
You can not import it into Australia for personal use even if you have a prescription. A doctor can import it in the name of his patient.
1. How to increase HGH
What are the best methods for increasing HGH? I found 3 – HGH injections, fasting and supplements that promote hgh secretion.
1. Fasting (relatively safe)
Short (up to 5 days) periods of fasting can have a huge effect in therms of HGH levels. A 3 day fast can increase hgh levels up to 300%. If you can hold for another 4 days (so 7 day total), there’s a big chance your HGH levels increase by up to 1250%.
And don’t worry about loosing muscle mass – HGH keeps the muscles intact in those 5 days. But always consult your doctor before starting a fast (it has its dangers too).
So you get all the benefits of increased hgh while also losing weight (if that’s your goal). More on fasting, HGH and athletic performance go to section no. 2.
2. Supplements for HGH (also pretty safe, no side effects, not so effective as fasting or hgh injections)
Natural supplements (or I should say ingredients in supplements) can also increase the HGH production although the effect is shorter than fasting and the quantity of hgh released is lower.
Some of these ingredients are Glutamine, Creatine, L-Dopa, Glycine and Orthinine.
According to this study , a 20g dose of Creatine boosts the maximum growth hormone secretion that lasts 2 to 6 hours after consuming the creatine.
A small dose of Glutamine increases the hgh secretion for up to 60 minutes before returning to normal after 1,5 hours. It’s a short burst but hey, I take what I can. The study is referenced under number 
This study  confirms that L-Dopa (a dose of 500mg) significantly increased hgh levels for about 2 hours. That means you should take this amino acid before workout.
3. HGH injection therapy
HGH injection therapy is often prescribed to treat conditions associated with low levels of HGH, such as growth hormone deficiency and Turner syndrome.
It is also used off-label to treat a variety of other conditions, such as muscle wasting, weight loss, and age-related declines in HGH.
According to mayoclinic the correct dose must be determined by your doctor. Somatropin (a syntetic version of hgh) is usually injected under the skin (once per day) and the required dose is 0,005miligram per kilogram.
Norditropin dosage is exactly 0.004mg per kilo (also once per day).
Notice that these dosages are for adults with growth hormone deficiency.
However, HGH injection therapy can also have potential side effects, including joint and muscle pain, swelling in the arms and legs, and carpal tunnel syndrome.
It can also increase the risk of developing diabetes and increase the size of the heart.
2. Fasting for muscle growth and athletic performance
Fasting is a practice that involves abstaining from food and drink for a specific period of time. It has been used for religious and spiritual reasons for centuries, but more recently, it has gained popularity as a way to improve health and fitness.
One of the ways that fasting can benefit the body is by increasing the secretion of the hormone human growth hormone (HGH).
This study on PubMed for a 5 day fast  showed a 100% increase in hgh comparing to the placebo group.
Fasting and the increase in HGH levels it produces is believed to also improve athletic performance.
HGH can help to increase the amount of energy available to the muscles, which might improve endurance and strength.
It can also help to reduce body fat and increase lean muscle mass, which can improve overall athletic performance.
Although fasting for HGH promotes lean muscle mass and can increase energy, it does not have any effects on athletic performance according to this study  over at PubMed