Grandma's Vitamin P
Bioflavonoids Guide

Although bioflavonoids are sometimes referred to as Vitamin P, they are not true vitamins in the strictest sense. Bioflavonids enhance the absorption of Vitamin C, and the two should be taken together.

There are many different bioflavonoids, including:

  • hesperetin
  • hesperidin
  • eriodictyol
  • quercetin
  • querctrin
  • rutin

The human body cannot produce Bioflavonoids, so they must be supplied in the diet.

Bioflavonoids are used extensively in the treatment of athletic injuries because they relieve pain, bumps, and bruises. They also reduce pain located in the legs or across the back, and lessen symptoms associated with prolonged bleeding and low serum calcium Bioflavonoids act synergistically with Vitamin C to protect and preserve the structure of capillaries.

In addition, Bioflavonoids have an antibacterial effect and promote circulation, stimulate bile production, lower cholesterol levels, and treat and prevent cataracts. When taken with Vitamin C, Vitamin P also reduces the symptoms of oral herpes.

Quercetin, a bioflavonoid found in blue-green algae and available in supplement form, may effectively treat and prevent asthma symptoms.

Activated Quercetin from Source Naturals is a good source of quercetin. It also contains two other ingredients that increase its efficacy: bromelain, an enzyme from pineapple, and Vitamin C, in the nonacidic form of magnesium ascorbate. Bromelain and quercetin are synergists, and should be taken in conjunction to enhance absorption.

photo of grapes and a glass of wine natural source of vitamin P or bioflavonoids photo of a lemon half a good natural food source of Vitamin P or bioflavonoids photo of fresh cherries a natural food source of vitamin P or bioflavonoids

Natural Food Sources of Vitamin P
Herbs that contain Bioflavonoids

Food Sources of Bioflavonoids

  • the white pulp material just beneath the peel of citrus fruits
  • peppers
  • buckwheat
  • black currants
  • apricots
  • apricots
  • cherries
  • grapefruit
  • grapes
  • lemons
  • oranges
  • prunes
  • rose hips

Herbs that contain Bioflavonoids

  • chervil
  • elderberries
  • hawthorn berry
  • horsetail
  • rose hips
  • shepherd's purse


Extremely high doses of Bioflavonoids may cause diarrhea.


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