DrFeb
Health Guide

Pacific Dogwood

Pacific Dogwood (Cornus nuttallii) is a North American tree whose berries and bark are part of the wider Cornus family of medicinal plants. While not a common grocery store item, its relatives (like Cornelian Cherry) are prized for their high concentration of iridoid glycosides. These compounds act as powerful bitter tonics, helping to stimulate digestion and regulate metabolic processes. It matters because it offers a natural, plant-based approach to managing oxidative stress and blood sugar levels without the harshness of synthetic alternatives.
Evidence BasedDietary Supplement
VERIFIED SOURCE

Bio-Activity Analysis

Bioavailability of Iridoid Glycosides

SCIENTIFIC DATA VISUALIZATION

Y-Axis
Absorption Rate
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Health Benefits & Sources

Why You Need It

  • Digestive Astringent: Tightens gut tissues to soothe occasional upset.
  • Metabolic Regulator: Supports healthy blood sugar levels naturally.
  • Cellular Defense: High antioxidant load protects against free radical damage.

Deep Dive

The Pacific Dogwood belongs to the Cornaceae family, which is chemically distinct for its production of loganin and cornuside. In traditional herbalism, this plant is considered a 'cooling' herb. Modern studies on Cornus species indicate that the fruit extracts inhibit alpha-glucosidase, an enzyme responsible for breaking down carbohydrates into sugar. By slowing this process, it helps prevent sharp spikes in blood glucose after meals. Furthermore, the bark contains tannins that have a drying effect, traditionally used to stop bleeding and reduce inflammation in the gut lining.

Natural Food Sources

Since Pacific Dogwood berries are bitter and astringent, they are usually processed into jams or wines. The most potent edible relative is the Cornelian Cherry.

Supplementation

If you cannot source the fresh fruit, look for Cornus officinalis or Cornus mas supplements. These provide the same active compounds (iridoids) found in the Pacific variety. Standardized extracts are preferred for consistent dosing.

Top Food Sources

Cornelian Cherry
Rich in loganin; the best edible source.
Processed Dogwood Jam
Cooked Pacific Dogwood berries.
Dried Bark/Tea
Used as a bitter tonic.
Persimmon
Similar tannic/astringent profile.
Hawthorn Berry
Cousin in the Rosaceae family.

Frequently Asked Questions

Yes, but they are extremely bitter and astringent when raw. They are best cooked into jams or fermented into wine to mellow the flavor.
No. 'Dogwood bark' historically referred to *Cornus florida*, which was used as a quinine substitute for malaria. Pacific Dogwood (*Cornus nuttallii*) shares similar compounds but is distinct.
Studies on the Cornus family suggest it inhibits enzymes that digest carbs, which can help moderate post-meal blood sugar spikes.
You will rarely find 'Pacific Dogwood' supplements. Look instead for 'Cornelian Cherry' (Cornus mas) or 'Cornus Officinalis' (Japanese Cornelian Cherry) supplements.

Safety & Side Effects

Generally recognized as safe when processed correctly. Do not eat raw seeds (trace cyanogens). Use caution if you are hypoglycemic or on diabetes medication, as it may amplify the effect of insulin. High tannin intake can inhibit iron absorption if taken with meals.

Scientific References

  • [1]Journal of Ethnopharmacology: 'Hypoglycemic activity of Cornus officinalis'
  • [2]Phytotherapy Research: 'Iridoid glycosides and antioxidant activity in Cornus species'
  • [3]USDA Database: 'Nutritional profile of Cornelian Cherry'