Vision with Lutein By Isotonix Overview & Drug Interactions

Vitamin E is a fat-soluble vitamin found naturally in a variety of foods, including vegetable oils, nuts, seeds, and leafy green vegetables. Vitamin E is also available as a dietary supplement and is often added to skincare products. Vitamin E has many roles in the body, including protecting cells from oxidative stress and supporting immune function.

Calcium is a vital nutrient found in various foods such as dairy products, certain vegetables, and many fortified items. Over 99% of the body's calcium is stored in the bones and teeth, predominantly as hydroxyapatite. The remaining calcium circulates in the blood, extracellular fluid, muscles, and other tissues, where it is essential for processes like nerve signaling, muscle contraction, vascular activities, glandular secretion, and maintaining cell membrane and capillary permeability. It also plays critical roles in enzyme reactions, respiration, kidney function, and blood clotting, and is involved in neurotransmitter and hormone release, amino acid uptake, vitamin B12 absorption, and gastrin secretion. Calcium balance changes with age: it is positive during periods of growth, stable in adulthood, and tends to become negative in older age. Calcium loss occurs through feces, urine, sweat, and shedding skin cells. In women, reduced estrogen levels decrease calcium absorption and retention, increase bone turnover, and lead to lower bone mass. Calcium supplements come in various forms, including citrate and carbonate, which differ mainly in their calcium content and absorption rates. Calcium citrate is easily absorbed and can be taken without food, making it suitable for older adults or those with low stomach acid. In contrast, calcium carbonate, which contains a higher percentage of calcium, is best absorbed when taken with meals.

Zinc is a mineral that is essential for the proper functioning of the human body. It is involved in many important physiological processes, including immune system function, wound healing, taste, and smell. Zinc is found in a variety of foods, including meat, seafood, and whole grains, and it is also available as a dietary supplement. Zinc supplements may be used to treat or prevent zinc deficiency, which can occur due to certain medical conditions, such as gastrointestinal disorders, alcohol abuse, and certain medications. Zinc supplements may also be used for other purposes, such as to boost the immune system, improve acne, and reduce the severity and duration of colds. There are several different forms of zinc supplements available, including zinc gluconate, zinc acetate, and zinc sulfate. The most common form of zinc supplements is zinc gluconate, which is well absorbed and is less likely to cause stomach-related side effects than other forms of zinc.

Chromium is a trace mineral that is found in small amounts in the human body. It is believed to play a role in the metabolism of carbohydrates, fats, and proteins. It is used as a dietary supplement for its purported ability to help with weight loss and blood sugar control. There is some evidence to suggest that chromium supplements may help to improve blood sugar control in people with type 2 diabetes, although the results of studies on this topic have been mixed. Some studies have found that chromium supplements can improve insulin sensitivity and reduce blood sugar levels in those with poorly controlled diabetes, while others have found no significant effects.

Bilberry is a small, perennial shrub that belongs to the Ericaceae family and is native to Europe, the northern United States, and Canada. It is known for its small, dark purple berries, which are similar in appearance to blueberries. The name bilberry is derived from the Danish word 'bollebar', meaning "dark berry". Bilberry is high in antioxidants, including flavonoids, and are a good source of vitamins and minerals, including vitamin C, vitamin E, and manganese. Bilberry has a long history of use in traditional medicine and is claimed to have a number of potential health benefits, including improving vision, reducing inflammation, and treating diarrhea.

Quercetin is a type of flavonoid, which is a class of compounds found in a wide variety of plants and foods. It is purported to have a number of health benefits such as anti-inflammatory, antioxidant, and immune-boosting effects. Studies suggest it may also help to reduce the risk of certain chronic diseases, such as heart disease. In addition, quercetin may have anti-allergic properties and may be helpful in the treatment of allergies and asthma. It is a popular dietary supplement worldwide and is often included in products that contain antioxidants or various vitamins/minerals. Its wide range of potential health benefits mean that it could potentiate the effects of other drugs (e.g., anti-hypertensives), which is why there are an abundant number of potential interactions listed for quercetin.

Euphrasia Officinalis, commonly known as eyebright, is a plant that belongs to the Orobanchaceae family and is native to Europe and Asia. The aerial parts of the eyebright, including the leaves, stem, and flowers, are used for medicinal purposes. They contain several compounds, including flavonoids, tannins, and iridoid glycosides, which are believed to be responsible for the plant's medicinal properties. Eyebright has traditionally been used to treat various eye conditions such as conjunctivitis, blepharitis, and eye strain. It also is purported to have anti-inflammatory properties that can help reduce inflammation in the eyes and nasal passages.

Lycopene is a natural red pigment and powerful antioxidant found in various fruits and vegetables, notably in tomatoes, watermelon, guava, and grapefruit. It belongs to the carotenoid family and is responsible for the vibrant red color in these foods. Studies suggest that lycopene may have health benefits, including reducing the risk of chronic diseases, such as heart disease and certain types of cancer, due to its antioxidant properties. It is best absorbed by the body when consumed with fats or oils.

Zeaxanthin is a type of carotenoid, a natural pigment found in plants and fruits, particularly in leafy greens and colorful vegetables. It is known for its antioxidant properties and its role in supporting eye health by protecting against harmful light-induced damage. Zeaxanthin is often used in dietary supplements targeted at promoting optimal vision and reducing the risk of age-related macular degeneration.