Bestsellers
Bekijk allesWinkelwagen
Je winkelwagen is leeg
In stock. Order today, delivered Monday by PostNL.
Not valid with discount codes.
Contents
Vragen? We helpen je graag!
Chat met ons of bel 038 303 2160
Snel bezorgd
Besteld voor 17:00, morgen in huis*
Achteraf betalen
met Klarna
Kies opties
Not valid with discount codes.
Contents
Vragen? We helpen je graag!
Chat met ons of bel 038 303 2160
Snel bezorgd
Besteld voor 17:00, morgen in huis*
Achteraf betalen
met Klarna
Not valid with discount codes.
Contents
Vragen? We helpen je graag!
Chat met ons of bel 038 303 2160
Snel bezorgd
Besteld voor 17:00, morgen in huis*
Achteraf betalen
met Klarna
NAC is one of those supplements that more and more people are reading about, but few know exactly what it is. This NAC from NOW Foods contains 600mg of N-acetylcysteine per capsule, supplemented with 25mcg of selenium. You take one capsule twice a day. You can choose between a bottle of 100 or 250 capsules, which will last 50 or 125 days, respectively. The small bottle is a good way to try NAC, while the large bottle is convenient if you have been using it for a while.
N-acetylcysteine is a slightly modified form of cysteine, an amino acid (protein building block) that you also get from food, such as eggs, chicken, and legumes. The difference lies in that small acetyl group. This makes the substance more stable than free cysteine, which reacts quickly with oxygen. Many people wonder what NAC does in the body. In short: your body converts it into cysteine, and then uses that as a raw material for glutathione. Glutathione is a small protein that is found in virtually all your cells.
Glutathione works in your cells together with an enzyme called glutathione peroxidase. And that enzyme needs selenium to function. That is why NOW Foods combines NAC with selenium. The selenium comes from L-selenomethionine, a form in which selenium is attached to an amino acid, as it also occurs in grains and nuts. Selenium contributes to the protection of cells against oxidative stress. In addition, selenium contributes to the normal function of the immune system and the normal function of the thyroid gland. With two capsules per day, you get 50mcg of selenium, 91% of the reference intake. Enough to count, without coming anywhere near the safe upper limit.
The advice is one capsule twice a day, not two at once. There is a reason for this. Your body processes NAC quite quickly, causing the amount in your blood to drop again after a few hours. By spreading out the intake, you keep the supply more even. With two capsules, you get 1200mg of NAC per day. Good to know: NAC naturally has a slightly sulfurous smell. This is normal and says nothing about the quality. There is a freshness bag in the bottle that absorbs moisture. Leave that in until the bottle is empty and keep the lid tightly closed, because NAC is sensitive to air and moisture.
NOW Foods makes these capsules in its own GMP-certified factory in the United States, without wheat, gluten, soy, milk, egg, fish, shellfish, or nuts. The capsule is made of hypromellose, so it is plant-based. Choose your size: those who have been curious about N-acetylcysteine for a while and want to try it for a few weeks first will find the bottle of 100 capsules to be a manageable size. If you already know that you like it, then the bottle of 250 capsules is the logical choice.
With two capsules per day, you get 1200mg NAC, right in the middle of the range often used in research.
Each capsule contains 25mcg selenium in a form bound to an amino acid. Selenium contributes to the protection of cells from oxidative damage.
NAC is sensitive to oxygen and moisture. A freshness pouch in the jar absorbs that, so the capsules stay good until the last one.
With 100 capsules, you have enough for over seven weeks, convenient if you are using NAC for the first time. With 250 capsules, you have over four months' supply.
* Percentage van de referentie inname volgens Verordening (EU) Nr. 1169/2011.
** Reference intake unknown.
Response within one working day
Our customer service is open on weekdays from 09:00 to 17:00.
Your body converts NAC into the amino acid cysteine. Cysteine is the building block that is often the first thing missing when the body produces glutathione, a substance that neutralizes reactive particles in your cells. No health claims are permitted for NAC itself in the EU, but they are for the added selenium.
Spread it throughout the day: one capsule in the morning and one in the evening. Your body processes NAC fairly quickly, so spacing it out keeps the supply more consistent. It doesn't matter much whether you take it with or without food, although people with a sensitive stomach may find taking it with a meal more comfortable.
Most people tolerate NAC well. In some people, it causes mild stomach discomfort, nausea, or a bloated feeling, especially when taken on an empty stomach. If you are taking medication, are pregnant, or are breastfeeding, consult your doctor first.
Because NAC naturally contains a sulfur group. That smell is normal and says nothing about the quality. However, keep the container tightly closed to keep the odor contained and the contents fresh.
NAC is cysteine with an extra acetyl group attached to it. This makes it more stable: free cysteine reacts quickly with oxygen, while NAC reacts much less so. In your body, your liver removes that acetyl group, leaving you with cysteine.
They are different substances. Glutathione is a small protein made up of three amino acids. NAC is a form of cysteine, one of those three building blocks.
