What is resveratrol?

Resveratrol or trans-resveratrol is a chemical with antioxidant properties. Over 70 plant species have detectable levels of it, with Japanese knotweed having the richest content. Scientists believe plants make it to protect themselves against natural radiation and pathogens.

What is resveratrol good for?

Animal studies and laboratory have suggested several resveratrol benefits. There are very few well-controlled human studies. And results have not been able to show clear-cut gains in survival and health, despite the changes in disease biomarkers. The list of potential resveratrol advantages includes:

  1. Lowering blood sugar levels and cholesterol
  2. Decreasing blood clotting
  3. Protecting the blood and heart vessels
  4. Treating and preventing cancer
  5. Preventing Alzheimer’s disease, Supporting memory and other dementias
  6. Reducing inflammation and pain

Most of the research is necessary before scientists may say for certain whether any of these resveratrol advantages are real or not.


There are companies that show resveratrol capsules in the market. How do you select the one that gives you the maximum benefits and right potency?

Look here when looking for a resveratrol supplement:


Most supplements have dosages between 250mg to 500mg, which are so much lower than what some studies have suggested being beneficial.

Well, that is what supplements are made for.


You would not take something into your body that you are not fully aware of, especially when it comes in small capsules. If you decide to take any other health supplement or resveratrol, you may be conscious. See the ingredients list and take note of what is in your resveratrol capsules.

  1. Look for trans resveratrol.

Resveratrol capsules can contain either cis resveratrol or trans resveratrol. What you need to take note of is the level of purity which varies from 5 percent to 75 percent.

The cost may be cheaper but you will not be getting any of the good stuff.

2. Say no to additives

Resveratrol is a natural substance so if you read anything in the supplement facts that don’t seem natural to you, do fast research. It is the best to be proactive than regretting taking the risk later on.


Of course, it is important to know where your resveratrol supplement is made. Look also for the seal that says it is laboratory tested to be sure of its potency and purity.


Even if you are not vegan, this standard means your capsule has no gelatin, which is an animal by-product. You would not even know if the cattle, where the gelatin in your capsule comes from, is safe and healthy from infection. It would put you at ease if your capsules are made from vegetable preservatives, cellulose, no gelatin or gluten.


And because of its energy-enhancing properties, you might have a hard time sleeping or better not take it at night.

Just a reminder, this is not advisable for lactating or pregnant mothers, individuals below 18 years old, and those with a known medical condition. Consult your doctor or physician first before using this supplement.


Resveratrol is commonly found in the skin of red grapes and in mulberries, cranberries and some deep-colored berries such as blueberrys. Muscadine grapes are contains the highest resveratrol concentration.

If you are a regular red wine drinker, you will be glad to know that it is also a great source of this powerful antioxidant just remember to drink in moderation. Other resveratrol sources include green tea leaves, cocoa or dark chocolate, Japanese knotweed, pistachio and peanuts.


It is important to note that while experts decide that it does have potential, there is still not enough data to confirm its effectiveness. Early research does suggest it may help protect you against:

Cancer: It may limit the spread of cancer cells and start killing them.

Diabetes: Resveratrol helps, in a condition in which the body becomes some sensitive to the blood sugar-lowering hormone insulin and to prevent insulin resistance. The condition can lead to diabetes.

Heart disease: It is thought to help lower LDL, reduce inflammation or “bad” cholesterol, and make it more difficult for clots to form that may lead to a heart attack.

Alzheimer’s: It can protect nerve cells from damage and fight the plaque buildup that can lead to the disease.

Researchers believe that resveratrol activates the SIRT1 gene. That gene is believed to protect the diseases of aging and the body against the effects of obesity.


Studies have not showed any severe ones, even when resveratrol is taken in large doses.

However, these supplements may interact with blood thinners like warfarin (Coumadin), and NSAID medications like aspirin and ibuprofen. That can raise your chance of bleeding.

As with other supplements, the FDA does not regulate resveratrol. That makes it difficult for consumers to know exactly what they are getting or whether the product is effective. There also is not any specific dosage recommendation, and how much you should take may vary from supplement to supplement.

The dosages in most resveratrol supplements are typically much less than the amounts that have been shown beneficial in research. Most supplements contain 250 to 500 milligrams.

Vitamin A

The upper tolerable limit for old aged person is 10,000 IU for Vitamin A. You can get it from dairy products, animal foods and fish. Also, beta-carotene (from yellow and orange veggies) gets converted to vitamin A in the body. “But the body is fully enough that it doesn’t convert all that to vitamin A,” said by Rosenbloom.

If you are already taking a multivitamin that contains 5,000 Integrational Unit, getting A-fortified foods in your diet and eating foods that contain vitamin A, you are probably OK.

Vitamin B3 (niacin)

The maximum limit for old age is 35 mg per day.

Vitamin B-6

Vitamin B-6is a water-soluble vitamin. It means you just pee out the excess. People have problems with temporary nerve damage. They lose feeling in their feet and hands.

Vitamin B9 (folate)

Taking too much vitamin B9 can lead to behaviour changes, abdominal cramps, sleep disorders, irritability, digestive issues, seizures, confusion, nausea, skin reactions and more. Rich intakes of folic acid can also mask a vitamin B12 deficiency. The maximum limit for old age is 1,000 mcg per day.

Vitamin C

People at risk for kidney stones may increase the risk; people also may get diarrhea. Most of people have food poisoning who had taken too much vitamin C. People are not aware how potent these vitamin supplements are.”

Vitamin D

The risk is that we get too much, which may actually cause calcium to reach out of your bones.” Vitamin D is found in some orange juice products, some calcium supplements are fortified with vitamin D. If you are somebody who may not drink dairy, getting vitamin-fortified orange juice makes sense. If you do drink dairy, then you take a supplement. It is that layering that I get concerned about, she says.

Vitamin E

People focus on vitamin E to prevent macular degeneration, Alzheimer’s, cancer, heart disease “the list goes on,” says Blumberg. The upper tolerable level is 1,000 milligrams; the RDA is 30 IU”. It didn’t have any adverse effects. In another study, people took 800 internationals units for six years, with no adverse effects, he says.

Possible side effects of multivitamins

Possible side effects of multivitamins are as like below:

A good diet is the best way to obtain these nutrients.

Most of the side effects are more common than others.

Common side effects

Certain side effects are more likely to occur than others when you are taking multivitamins. These include:

  1. diarrhea
  2. constipation
  3. upset stomach
  4. nausea

These gut-related side effects are generally temporary and minor.

Rare side effects

Rare side effects of multivitamins include:

  1. gout
  2. headaches
  3. nosebleeds
  4. insomnia

Other factors that can cause multivitamin side effects

Multivitamins can also become contaminated with harmful compounds, such as lead or arsenic.

When you ingest these harmful compounds in large amounts or over a longer period of time, they can cause a variety of health issues, including neurological, physical and muscular problems, as well as birth defects.

It is impossible to identify whether multivitamin contains these harmful compounds by looking at its label alone.

However, some manufacturers opt to get their supplements verified by third-party labs, which may confirm whether they are free of contaminants and that they truly contain what the label states.

Some examples of independent supplement testing companies include ConsumerLab and U.S. Pharmacopeia and NSF International.

Side effects in infants and children

Side effects in children are similar to those that older age may experience. However, children are likely to experience them at much lower doses than older age.

In other words, children who take multivitamins may have a higher risk of consuming extremely high levels of nutrients, which may lead to nutrient overdoses and even death in severe cases.

Companies market many multivitamins specifically for children and infants.


Pay attention to food labels, says by Rosenbloom. If you see 100% of RDA, you can not need a multivitamin supplement.

For a small fee, a nutritionist may evaluate your diet for deficiencies. Also, some online programs may provide the same service.

Blumberg’s prudent advice: “Take a multivitamin. Take a calcium supplement, if you do not drink much milk. If you are taking medicine that interferes with nutrient absorption, if you are an older person whose calorie intake is low, if you are an athlete.

We have decided to purchase vitamins, regularly follow the daily recommended dose to avoid excessive intake. Before purchasing it is recommended that you consult a nutritionist or physician to receive an assessment.

An overdose of vitamins K, A, E, D may cause serious or life-threatening side effects

Research gives that the average American diet just isn’t cutting it.

While increasing consumption of certain foods in our diet can help with this, multivitamins are another way to help ensure you are getting the proper nutrients.

So if you are considering a multivitamin, check with your doctor first.

Most of the Americans are not meeting the recommended daily intake for whole-grains, fruits and vegetables.

Many women lack iron, calcium, dietary fiber, potassium, chorine, magnesium and vitamins A, C, D and E in their diets according to the U.S. Department of Health and Human Services.

But not all multivitamins are created equal.

  1. Made of raw materials
  2. Non-GMO, organic
  3. Free of heavy metals, chemicals, and coloring
  4. Have certifications from NSF International, the Dietary Supplement Verification Program, Good Manufacturing Practice (GMP), or another reputable third party.
  5. Allergen- and gluten-free

Vitamins are like below :

  • Life Extension Two-Per-Day Multivitamin

Life Extension claims to include only dosages and nutrients check by science to be effective.

  • The Vitamin Shoppe Ultimate Women Gold Multivitamins

Vitamin D is being studied as a cardiovascular, reproductive system health. Store in a dry, cool place. Keep out of reach of children.

  • Ritual Women’s Multivitamin

The makers are serious about the quality of their product and very transparent about how and where they source their material.
The Essential for Women vitamin is 100% vegan. It is combination of nine important ingredients: boron, folate, magnesium, omega-3, B12, D3, iron and K2. The inclusions of omega-3s, which may help regulate inflammation. It reduces blood clotting.

  •  Saz Products Whole Food Multivitamin

Saz’s vitamin is digestive enzymes not only help with general digestion, they also aid the absorption of the nutrients. They are sourced from raw foods. Klaire Labs Prenatal & Nursing Formula.

  •  Metagenics PhytoMulti Capsules

They may aid in boosting memory, fighting free radicals and reducing inflammation. You may get the PhytoMulti with iron or without depending on your needs. First take one to three capsules once daily with food or as adviced by your healthcare practitioner. Metagenics PhytoMulti Capsules are non-GMO and gluten free.

  •  Full Circle Prenatal Multivitamin

Full Circle Prenatal Multivitamin brand was created by a registered dietician. It contains vitamin B, choline, vitamin D and Iodine.

Most of prenatals contain less than the recommended levels of iodine. Full Circle Prenatal contains 250mcg of iodine which is in line with the American Thyroid Association’s and World Health Organization recommendations for iodine supplementation during pregnancy. The experts behind Full Circle Prenatal know the use of providing active forms of B vitamins, particularly folate and vitamins. You also may know that too many methylated B vitamins may cause other side effects and anxiety in some patients. The Full Circle Prenatal expertly combines adenosylcobalamin, methylcobalamin and methyltetrahydrofolate with calcium folinate (folinic acid) to provide enough active B vitamins while reducing side effects that affect patient compliance. 

Vitamin D plays a critical role in fertility, preventing pregnancy complications, fetal development and Full Circle Prenatal contains 4,000 IU’s of this critical nutrient.

Wagner CL., Hulsey TC, Hollis BW, Johnson D, Ebeling M, Vitamin D supplementation during pregnancy: Double-blind, randomized clinical trial of effectiveness and safety. J Bone Miner.

  •  Supplements Studio Whole Food Multivitamin Plus

Multivitamin contains the essentials as well as a probiotic blend/digestive enzyme. They use raw, gluten free ingredients, non-GMO to make their vitamins. It is composition of nutrients it claims to have on the label. It provides 100% daily requirements to the men’s and women. Whole food multivitamin made with vegetables and organic fruits. Third party tested 100% satisfaction guarantee.      

  •  Best for 50+: Rainbow Light Active old age 50+ Multivitamin

This multivitamin gives energy like whole foods, a main advantage says Hayim. It contains ingredients like spinach juices, organic spirulina super food, concentrated kale and beet all to help increase nutrient absorption and energy. It is food-based multivitamin. It protects brain, heart, bone, eye and immune health. It provides anti-aging defense and boosts energy levels. It is easy to digest with probiotics and enzymes. Rainbow Light Active multivitamin is iron and gluten free. It gentles on stomach.

  • Runner-Up, Best for 50+: Gaia Herbs Women’s Balance Capsules

Gaia is a recognizable (and with good reason) brand. Gaia has been using herbs and quality plants over a decade. It helps maintain a healthy hormone balance and also provides traditionally for relief of occasional hot flashes. Gaia contains a blend of St. John’s Wort, Vitex and Black Cohosh.

  1. Best Personalized: Vous Vitamin Personalized Vitamins

If we are having trouble finding a vitamin that’s tailor-made to fit your needs exactly and It look to one you may customize to your liking like this option developed by doctors. All we have to do is take a short quiz on the brand’s website. It also answers questions about your overall lifestyle, health and diet.


It is both non-GMO Project Verified and USDA Organic. The Ritual Essential for Women earns our vote for the best vegan option (and has the added advantage of being delivered to your door via a convenient subscription model). For the best option, the Swisse Ultivite Daily Multivitamin for Women is filled with 50 essential nutrients.