Eicosapentaenoic acid is used in combination with docosahexaenoic acid (DHA) in fish oil preparations for a variety of conditions, including preventing and reversing heart disease, and decreasing irregular heartbeats; as well as asthma, cancer, menstrual problems, hot flashes, hay fever, lung diseases, lupus, and kidney disease caused by an immune reaction.

The combination is also used for migraine headache prevention in adolescents, skin infections, Behçet's syndrome, high cholesterol, high blood pressure, psoriasis, Raynaud's syndrome, rheumatoid arthritis, Crohn's disease, and ulcerative colitis.

Eicosapentaenoic acid is long-chain n-3 polyunsaturated fatty acids, which compete with arachidonic acid for inclusion in cyclo-oxygenase and lipoxygenase pathways.

It's actions include hypolipidaemic action (especially a reduction in plasma triglycerides) by reducing very-low-density lipoproteins; anti-inflammatory action, attributed to effects on leukotriene synthesis; and antiplatelet effect, attributed to effects on prostanoid synthesis, which promote vasodilatation, reduction in platelet aggregation, increased bleeding time and decreased platelet counts.

• Nausea
• Gastrointestinal discomfort
• Burping
• Vomiting
• Joint,back and muscle pain
• Diarrhea
• Nosebleed

When used in amounts greater than 3 grams per day, eicosapentaenoic acid can thin the blood and increase the risk for bleeding.

If you are sensitive to aspirin, eicosapentaenoic acid might affect your breathing.

Eicosapentaenoic acid might lower blood pressure.

• Folic acid is the synthetic form of folate, which is a naturally occurring B vitamin. Folate helps make DNA and other genetic material. It is especially important in prenatal health.
• Folate, also called vitamin B-9, is a B vitamin that naturally occurs in certain foods. Folic acid is the form of folate that manufacturers add to vitamin supplements and fortified foods.

• It helps the body make healthy new red blood cells.
• In its deficiency a person can develop anemia, leading to fatigue, weakness, and a pale complexion.
• It leads to folate deficiency anemia.
• Folate is also important for the synthesis and repair of DNA and other genetic material.
• It is particularly important to get during pregnancy. Folate deficiency during pregnancy can lead to neural tube irregularities, such as spina bifida and anencephaly.
• Folic acid is crucial for early fetal development.
• Neural tube irregularities - Taking folic acid supplements before and during pregnancy will help prevent neural tube irregularities in the fetus.
• It may also reduce the risks of preterm birth, heart irregularities, and cleft palate, among other things.
• Depression - Taking folic acid supplements could make depression medications more effective.
• The Office on Women’s Health recommend that women who are or might become pregnant take 400–800 mcg of folic acid per day, and that people with spina bifida or a family history of neural tube irregularities take 4,000 mcg per day. Those who are breastfeeding should aim to take around 500 mcg per day.
• The body absorbs folic acid from supplements and fortified foods better than the folate from naturally occurring foods.

Skin reactions, seizures, gases problem, diarrhea, irritability, confusion, stomach upset, loss of appetite, and hypersensitivity

It is important to note that folic acid can interact with certain medications.

A person should speak to a doctor before taking folic acid if they have any of the following:

• Epilepsy
• Type 2 diabetes
• Rheumatoid arthritis
• Lupus
• Inflammatory bowel disease (ibd)
• Celiac disease

People undergoing kidney dialysis may also wish to avoid taking folic acid.

Vitamin C consists of a water-soluble vitamin known as vitamin C. Vitamin C is also known as L-ascorbic acid or ascorbate.  It occurs as a white or slightly yellow crystal or powder with a slightly acidic taste. On exposure to light, it gradually darkens. In the dry state, it is reasonably stable in air, but in solution, it rapidly oxidizes.

• Vitamin C helps in the growth and repair of tissues of bones, cartilage, tendons, skin, hair, muscles and many more.
• Along with that, it helps in wound healing and also enhances the absorption of iron in our body.
• Excess of free radicals can speed up the ageing process, vitamin C due to its rich antioxidant properties help to reduce the harmful effects of these free radicals. Vitamin C is very crucial for bone and teeth health.
• It improves vision and also regulates blood cholesterol levels.
• Owing to its numerous benefits, it is very important to take an adequate amount of vitamin C in your diet.

Possibly Effective for

• An eye disease that leads to vision loss in older adults (age-related macular degeneration or AMD).
• Irregular heartbeat (atrial fibrillation). Taking vitamin C before and for a few days after heart surgery helps prevent irregular heartbeat after heart surgery.
• Emptying the colon before a colonoscopy.
• Limb pain that usually occurs after an injury (complex regional pain syndrome). 
• Skin redness caused by injury or irritation (erythema). Using a skin cream containing vitamin C might decrease skin redness following laser resurfacing for scar and wrinkle removal.
• Airway infections caused by exercise. Using vitamin C before heavy physical exercise, such as a marathon, might prevent upper airway infections that can occur after heavy exercise.
• Swelling (inflammation) of the stomach (gastritis). Some medicine used to treat H. pylori infection can worsen stomach inflammation. Taking vitamin C along with one of these medicines called omeprazole might decrease this side effect.
• A condition in which red blood cells are broken down faster than they are made (hemolytic anemia). Taking vitamin C supplements might help manage anemia in people undergoing dialysis.
• High cholesterol. Taking vitamin C might reduce low-density lipoprotein cholesterol in people with high cholesterol.
• Lead poisoning. Consuming vitamin C in the diet seems to lower blood levels of lead.
• Osteoarthritis. Taking vitamin C from dietary sources or from calcium ascorbate supplements seems to prevent cartilage loss and worsening of symptoms in people with osteoarthritis.
• Pain after surgery. Taking 2 grams of vitamin C by mouth one hour before surgery might reduce pain and the need for opioid pain relievers after surgery. 
• Wrinkled skin. Skin creams containing vitamin C seem to improve the appearance of wrinkled skin. A vitamin C patch also seems to help reduce wrinkles.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using Vitamin C and call your doctor at once if you have:

• Joint pain, weakness or tired feeling, weight loss, stomach pain;
• Chills, fever, increased urge to urinate, painful or difficult urination; or
• Severe pain in your side or lower back, blood in your urine.

Common side effects may include:

• Heartburn, upset stomach; or

• Nausea, diarrhoea, stomach cramps.

• Transient mild soreness may occur at the site of intramuscular or subcutaneous injection.
• Too-rapid intravenous administration of the solution may cause temporary faintness or dizziness.
• Although vitamin C is generally considered safe, high doses can cause adverse effects, including heartburn, nausea, headaches, stomach cramps, and diarrhoea.
• Vitamin C is not stored in the body. If you take more than you need, the extra vitamin C will pass into your urine.
• Very large doses may also interfere with tests for sugar in diabetics and with tests for blood in the stool.

• It is an essential cofactor for many enzymes related to energy metabolism, and activates the insulin-signaling cascade to help lower blood sugar.
• Alpha-lipoic converts blood sugar (glucose) into energy using oxygen, a process referred to as aerobic metabolism. Alpha-lipoic acid is also considered an antioxidant, meaning that it can neutralize harmful compounds called free radicals that damage cells at the genetic level.

• It has long been presumed that alpha-lipoic acid can aid in the control of glucose by increasing the speed in which the blood sugar is metabolized. This could potentially aid in the treatment of diabetes
• It is believed by some that alpha-lipoic acid can effectpeople with diabetic neuropathy,
• Alpha-lipoic acid's ability to enhance calorie burning and promote weight loss has been exaggerated by many diet gurus and supplements manufacturers. 
• Alpha-lipoic acid has long been believed to influence weight and health by altering the lipid (fat) composition in the blood.
• Cosmetics manufacturers often like to boast that their products benefit from the anti-aging properties of alpha-lipoic acid.

•  Nausea,
•  Abdominal pain,
•  Allergic reaction,
•  Diarrhea,
•  Vertigo,
•  Vomiting
•  muscle cramp,
•  a tingling "pins and needles" sensation.

• Food decreases the amount of alpha lipoic acid in the body; hence it should be taken on empty stomach about 1 hour before or 2 hours after consuming food.
• Do not take alpha lipoic acid supplements on your own and as a sole treatment for diabetes, complications of diabetes and other conditions in which benefit may be claimed, as these diseases require proper medical treatment.