Garcinia cambogia absorb science

Garcinia cambogia absorb science
Hydroxycitric Acid(HCA) has been studied by medical professionals and many consider it effective to reduce appetite, stop carbohydrates from converting to fat, and elevate the metabolism- helping people lose weight and get fit.

Juicing for Health and Weight Loss

What to know before adding fresh juice to your diet.

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Ready to give juicing a whirl? It's an easy way to get more fruits and veggies into your diet.

Before you get started, you should know a few things about what you can expect juicing to do for you, and what's just hype.

The Biggest Advantage

“If you’re not big into fruits and vegetables, it’s a good way to get them in," says nutritionist Jennifer Barr, RD, of Wilmington, DE. You should still eat fruits and vegetables, too, says Manuel Villacorta, RD, founder of Eating Free, a weight management program.

Aim to eat two whole fruits and three to four vegetables a day. Choose them in different colors, so you get a good mix of vitamins and minerals, Barr says.

Fiber Factor

When you juice, you don't get the fiber that's in whole fruits and vegetables. Juicing machines extract the juice and leave behind the pulp, which has fiber.

So you don't miss out on the fiber, you can add some of the pulp back into the juice or use it in cooking.

Barr adds it to muffin batter, or to make broth for cooking soup, rice, and pasta. That's "going the extra step to fortify your meals," she says.

Do You Need a Juicing Machine?

Juicers can be expensive, ranging from $50 to $400. Some more expensive juicers will break down a lot of the fruit by grinding the core, rind, and seeds, Barr says.

You may not need a juicing machine to make juice. You can use a blender for most whole fruits or vegetables to keep the fiber. Add water if it becomes too thick, Villacorta says. You’ll want to remove seeds and rinds, and some skins.

Once your juice is ready, it's best to drink it the same day you make it, for food safety. Wash your blender or juice machine thoroughly, so it's ready for your next batch.

Watch the Calories

How many calories are in your juice? That depends on what's in it.

"You could be taking up to four fruits, and now the calories start adding up. If you use vegetables to juice, the calories are a lot less. If they use mainly vegetables, add an apple or kiwi for flavor. Calories are a concern if it’s pure fruit juice," Villacorta says.

You can make your juice more balanced by adding protein. Some good sources are almond milk, Greek yogurt, flaxseed, and peanut butter.

Juicing for Weight Loss and Cleansing

Juicing might seem like a simple way to lose weight, but it can backfire.

On a juice-only diet, you may not get enough fiber or protein to make you full. You might rebel.

“If you’re doing a juicing diet, you’ll be so tempted to eat something like a cake or doughnut because you’ve restricted yourself,” Barr says.

Not getting enough protein could also mean you lose muscle mass.

The bottom line: It's too extreme, and the results aren't likely to last.

What about juicing as a way to detox or cleanse your body?

The sad thing is that most people never read the fine prints until after they see the exorbitant payments on their credit cards.

“I haven’t seen any research or science paper to support that cleansing is happening from juicing,” Villacorta says.

Your liver and kidneys take care of that -- whether you're juicing or not.

Other Health Claims

As for other health claims, it's true that eating a plant-based diet is linked to lower risk of heart disease or cancer. But there hasn't been a lot of research done that's specific to juicing.

There is some research on juicing and the immune system. But any immune system benefits probably come from eating fruits and vegetables, whether it's in juice or not, Barr says.

If You're Taking Prescription Drugs

Check with your doctor before doing a lot of juicing, so you can avoid any potential problems.

For instance, large amounts of foods high in vitamin K, such as kale and spinach, may change how the blood thinner warfarin works.

Jennifer Barr, MPH, RD, LDN, owner, Downingtown Nutrition & Weight Management Center; adjunct instructor, West Chester University, West Chester, PA.

Institute of Medicine. "Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids," The National Academies Press, 2005.

U.S. Department of Agriculture: “Phytonutrient FAQs.”

Manuel Villacorta, MS, RD, founder, Eating Free; owner, MV Nutrition, San Francisco.

Supplements for Weight Loss

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In this Article

In this Article

When you want to drop some weight, it's tempting to look for help anywhere you can. If your thoughts turn to supplements or herbal remedies, keep in mind that research gives many of them mixed reviews. In some cases, there isn't a lot of science to back up the claims, and some have health risks. Talk with your doctor first before you try any.

Also, you should know that the FDA has cracked down on some weight loss supplements that had prescription drugs in them that weren't noted on the label. You can't always tell what you're getting.

The FDA regulates dietary supplements, but it treats them like foods rather than medications. Unlike drug manufacturers, the makers of supplements don't have to show their products are safe or effective before they sell them.

This is a sugar that comes from the hard outer layers of lobsters, crabs, and shrimp. Enthusiasts say it can block fats and cholesterol from getting absorbed by your body.

Does it help you lose weight? Natural Medicines, an independent group that analyzes research on supplements, says there isn't enough reliable evidence to rate it.

Hydroxycitric acid, or HCA is the main active ingredient, as well as the main reason for Garcinia Cambogia’s reputation as a weight-loss miracle.

"People go by physical cues," when they eat, Grotto tells WebMD.

The National Center for Complementary and Integrative Health states that chitosan has not been shown to be effective for weight loss.

Chitosan usually causes no side effects, but some people get an upset stomach or constipation. If you are allergic to shellfish, you should not take chitosan, because it is made from shellfish.

Chromium Picolinate

Chromium is a mineral that enhances insulin, a hormone that's important for turning food into energy. Your body also needs it to store carbohydrates, fats, and proteins.

There are claims that chromium supplements can:

  • Lower your appetite
  • Help you burn more calories
  • Cut your body fat
  • Boost your muscle mass

But a review of 24 studies that checked the effects of 200 to 1,000 micrograms of chromium a day found that there aren't any significant benefits. Natural Medicines says that chromium is "possibly ineffective" for weight loss.

Rarely, chromium supplements can cause side effects such as:

Also, at least three people have developed kidney and liver damage when taking chromium. You shouldn't use it if you have kidney or liver problems.

Conjugated Linoleic Acid (CLA)

This is a popular supplement that contains chemicals found in a fatty acid called linoleic acid. There are claims that it may help curb body fat and help you stay full.

The research on CLA for weight loss is mixed. Some suggests that for some people, 1.8 to 6.8 grams of CLA per day may:

But other research shows it doesn't help you shed pounds.

Natural Medicines says that CLA is "possibly effective" for weight loss.

Some researchers warn that long-term use, especially if you're obese, may raise insulin resistance, which makes it more likely you'll get type 2 diabetes. It might worsen cholesterol in your blood, as well, which raises the risk of heart problems.

In some people, CLA may cause side effects such as:


This is made from the konjac plant. Like other dietary fibers, it's supposed to help you lose weight by blocking fat in your food from being absorbed into your body.

Very early studies suggest it might be helpful, but other evidence shows it doesn't work.

Natural Medicines says there is "insufficient evidence" to rate how well glucomannan works for weight loss.

If you take glucomannan in the tablet form of the supplement, you could choke or get a blockage in your:

It appears to be somewhat safer if you take this supplement as a powder or a capsule.

Glucomannan also may make it harder for your body to absorb medications.

From the sound of it, you might think leaky gut only affects the digestive system, but in reality it can affect more.

So take your medicine either 1 hour before or 4 hours after you use glucomannan.

Green Tea Extract

It supposedly works by:

Natural Medicines says there isn't enough evidence to rate how well it works.

Side effects of green tea extract, especially in high amounts, include:

Green Coffee Extract

Early studies suggest it may lead to modest weight loss, but more research is needed. Natural Medicines states that there is not enough good research to decide if it is effective.

Few people have side effects, but because of the caffeine in green coffee it may cause:

This comes from the seed of the guar plant. Like other dietary fibers, it may prevent fats from being absorbed into your body and helps you feel full.

Guar gum has been studied much more than other fibers for weight loss, and most researchers say it's not effective.

Natural Medicines agrees and rates guar gum as "possibly ineffective."

Side effects may include:

This is a plant that grows in the Kalahari Desert in Africa. According to the National Center for Complementary and Alternative Medicine, the stem of the root was traditionally used by Bushmen to cut their hunger and thirst during long hunts. It's now marketed as an appetite suppressant.

Hoodia contains P57, an ingredient that's said to curb appetite by helping you feel full. But there's no credible evidence that it's safe or effective.

Natural Medicines says it lacks evidence to rate whether hoodia works.

This is found naturally in your body. It may help you lose pounds by boosting your metabolism so you burn more calories throughout the day.

In a couple of small studies, people who took 7-keto-DHEA -- along with moderate exercise and a reduced-calorie diet -- lost significantly more weight than those who were given a placebo (a dummy pill). But Natural Medicines says there still isn't enough reliable evidence to rate how well it works.

A decrease in blood count has been reported after taking 7-Keto-DHEA for a week. Scientists are not yet sure what this can mean for the person taking the supplement.

This is an herb that's also known as ma huang. This is a different plant from a related species that grows in North America. Ephedra contains the stimulant ephedrine.

It is very closely related to these manmade compounds found in some drugs:

The FDA banned supplements with ephedra after the herb was linked to serious side effects, including:

The FDA's ban doesn't apply to traditional Chinese herbal remedies or to products such as herbal teas.

According to the FDA, there is little evidence that the herb helps except for short-term weight loss.

Just make sure you are taking a real, pure supplement as shown on this page.

The agency says the health risks outweigh any benefits.

Natural Medicines says ephedra is "likely unsafe."

Bitter Orange

The bitter orange tree is native to Africa and tropical Asia. It's also grown in the Mediterranean, California, and Florida.

Bitter orange fruit rind contains synephrine, a stimulant related to ephedrine. It supposedly works by raising the number of calories burned.

After the FDA banned weight loss products containing ephedra, many makers switched to bitter orange, but it's not clear if it's safer.

Natural Medicines says that bitter orange is "possibly unsafe" and there's not enough evidence to know if it works for weight loss.

Some studies show bitter orange supplements can raise your blood pressure and heart rate. There have been reports that they may have had dangerous side effects in people who took bitter orange alone or combined with other stimulants such as caffeine. The risks include:

The FDA says bitter orange may not be safe to use as a dietary supplement. You should especially avoid it if you have a heart condition, high blood pressure, or other medical problem.

You should also avoid bitter orange supplements if you take caffeine, certain medications (such as MAO inhibitors), or herbs or other supplements that speed up the heart rate.

FDA: "Beware of Fraudulent Weight-Loss Dietary Supplements;" "Tainted Weight Loss Products;" "Weight Loss Fraud: Know What You're Taking;" and "Questions and Answers about FDA's Initiative Against Contaminated Weight Loss Products."

Natural Medicines Comprehensive Database: "Natural Medicines in the Clinical Management of Obesity;" "7-Keto-DHEA;" "Hoodia;" "Guar Gum;" "Green Coffee Extract;" "Green Tea Extract;" "Glucomannan;" "Conjugated Linoleic Acid;" "Chromium;" and "Chitosan."

National Center for Complementary and Alternative Medicine: "Bitter Orange;" "Ephedra;" "Hoodia;" "Effects of Chromium Picolinate in People at Risk for Type 2 Diabetes;" and "Green Tea."

National Institutes of Health Office of Dietary Supplements: "Chromium."

National Library of Medicine: "Senna."

Micronutrient Information Center, Linus Pauling Institute, Oregon State University.

University of Maryland Medical Center: "Ephedra."

Insert Clever Title Here

A little bit of everything, a tiny bit of nothing

Physical Science 2.03: Electromagnetic Spectrum – The Visible

In your own words, explain how Doppler radar works. Describe the properties of electromagnetic waves and interactions that make Doppler radar possible.

Preuss, who went on to lead the most promising human studies into HCA, points out that there are three different forms of hydroxycitrates: those which are blended with calcium, potassium, or magnesium salts.

(13 points)

The Doppler Radar is used to get information about the weather. The Radar transmits a flare of energy that, if it hits something, will scatter in all different directions. A small amount of the scattered energy, now called a Pulse, will then be directed back to the radar. The time it took for the Pulse to travel both ways, the strength of the returned Pulse, and the phase shift of the Pulse is then analyzed by computers. The shift in the phase of the pulse varies depending on the motion, speed, and object that it hit. Echo Intensities, usually measured in dBZ, is represented by colors and measures the amount of transmitted power that was directed back to the Radar. The dBZ Value and the strength of the Pulse have a Direct Relationship, because if one increases, so does the other.

In your own words, explain how polarized sunglasses work. Describe the properties of electromagnetic waves and interactions that this technology targets. (13 points)

Polarized Light is an Electromagnetic Wave that vibrates in just one direction. When Polarized Waves pass through an object, or a medium, some of the waves will be absorbed, but some of the waves could pass through or be reflected. Polarized Sunglasses absorb Vertical Electromagnetic Waves, but reflect Horizontal ones.

In your own words, explain why we see a rainbow or colorful sunset. Explain the properties and interactions that make this display possible. (13 points)

Colors Sunsets and Rainbows are light Prisms. Colors pass through Prisms, depending on what colors pass through the prism and/or what colors are in front of the prism. Primary Colors, which are Red, Green, and Blue, will always absorb the other colors. Secondary Colors, however, like Yellow, Pink, and Orange, will not absorb all other colors. When a Secondary Color is put in front of a Primary Color, the Secondary Color and the Primary Colors used to make it will show up. To colors of rainbows and colorful sunsets, which are basically prisms, depends on what colors are around them.

Discuss the dual nature of electromagnetic waves and how they travel in a vacuum and through a medium. (13 points)

Electromagnetic Waves have a Dual Nature, or Duality Of Light, because they have both Particles and Waves. Because they have a Dual Nature, which most waves don’t, they can travel through a medium, like water, or a vacuum, like outer space.

You must include citations for all reliable sources used. Include citations from three or more reliable sources. (8 points)