推荐产品：非转基因lecithinNon-GMO Lecithin 1200mg 400softgels、向日葵lecithinSunflower Lecithin 1200mg 200softgels、向日葵lecithin纯粉Sunflower Lecithin Pure powder、非转基因lecithin颗粒Non-GMO Lecithin Granules、Alpha GPC
 
NOW is a well-known brand in the U.S. dietary supplement market, with a history of 50 years, and was one of the first manufacturers to be GMP certified and rated A by the NPA. NOW has been re-certified by GMP every year and maintains an A rating, and its production management is scientific and rigorous, and it has maintained a record of zero violations for 50 years. At present, NOW has more than 2,000 kinds of products, and is one of the most complete health companies in the United States, with more than 30,000 retail terminals around the world, and its sales volume ranks among the top three in the American market. It is worth mentioning that NOW's in-house laboratory is also in an industry-leading position, with strong R&D and analytical testing capabilities, which are rare in the natural products industry.
 
Lecithin supplements are usually available in a single form, but NOW has continued to produce them in a consistent segment: not only in the most common softgels, but also in granules, powders and liquids. Softgels are the least affected by air oxidation, have the strongest stability, and are more convenient to store, but the softgels contain solvent oils and low lecithin content. Granules and powders are of the highest purity and do not contain excess fat, but they are less stable, so it is recommended to buy small packets and avoid long-term storage.
 
There are four types of lecithin products recommended by NOW: Non-GMO Lecithin 1200mg, Sunflower Lecithin 1200mg, Sunflower Lecithin Pure powder and Non-GMO Lecithin Granules, all of which are derived from non-GMO crops. The four products are of high quality and low price in their class.
 
In terms of source, supplement lecithin is divided into soy lecithin and sunflower lecithin, the latter generally has a slightly higher phosphatidylcholine content than the former, and the price is also higher. Overall, there is no significant difference in the effectiveness of the two types of lecithin, and if you are allergic to soy, you can choose sunflower lecithin. In view of the similar effects of the two types of lecithin, the main comparison here is the advantages and disadvantages of the same dosage form of lecithin.
 
Non-GMO Lecithin 1200mg and Sunflower Lecithin 1200mg are softgel products, the former is only about 130 yuan for 400 capsules, and the latter is about 90 yuan for 200 capsules. Although the proportion of phosphatidylcholine in non-GMO soy lecithin is lower than that of sunflower lecithin, the former is still more advantageous in terms of the amount of choline. These two products are very cost-effective in their class, and their recommended dosages may not be sufficient to meet the needs of people with choline deficiency, and for the general population, this dosage is basically appropriate.
 
If the demand for lecithin is high, granules and powders are undoubtedly more suitable choices. Its ingredients are pure, if calculated in choline, NOW's Sunflower Lecithin Pure Powder and Non-GMO Lecithin Granules Non-GMO Lecithin Granules are cheaper than softgels, the same 454g specification, the former is about 110 yuan, and the latter is about 90 yuan. The recommended dosage of the two can meet the body's demand for choline for a day, if the diet is normal, the amount of consumption can be appropriately reduced, and the body's need for choline can be referred to the knowledge encyclopedia.
 
NOW Lecithin also has a liquid sunflower lecithin, which is very popular on platforms such as iherb, but its phosphatidylcholine/choline content is unknown, and the fat content per serving is high, so it is not particularly recommended.
 
For choline supplementation, NOW's Alpha GPC may also be considered. Alpha GPC is a natural physiological precursor to acetylcholine and, like phosphatidylcholine, provides choline to the body. The price of this Alpha GPC from NOW is higher, about 170 yuan for 60 capsules, and the recommended dosage can meet the needs of those who are lacking. It should be noted that this product is extracted from soybeans, so people who are sensitive to soybeans should be cautious.
 
It is important to note that lecithin is generally safe, but high doses can cause significant discomfort such as vomiting, abdominal pain, excessive sweating, and low blood pressure. In addition, lecithin/choline is converted into TMAO by intestinal microorganisms during metabolism, which is associated with a high risk of cardiovascular disease, so it is not advisable to overdose on lecithin/choline supplements, and it is best to consult a doctor before taking it in special populations.