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Heart & circulation

25 results
Oat panicles beside rolled oats and a bowl of oatmeal
Library entry · Seeds & grains

Oats

Oats are the grains of Avena sativa, eaten as a whole-grain food and used in distinct herbal and topical preparations.

Whole-grain mealsSoluble beta-glucan intakeCholesterol-conscious eating
Wild Reishi bracket mushrooms growing on a moss-covered decaying hardwood log
Library entry · Mushrooms, fungi & myceliums

Reishi mushroom

Reishi, also called lingzhi, is sold as slices, decoctions, powders, extracts, capsules and spores; these products are not interchangeable.

Traditional East Asian practiceTea and decoction productsSupplement research
Red hibiscus flower representing Hibiscus sabdariffa tea; verify product species on the label
Library entry · Leaves & teas

Hibiscus tea

Hibiscus tea is usually a tart infusion of dried H. sabdariffa calyces; flowers, syrups, concentrates and extracts are not equivalent.

Tart caffeine-free infusionTraditional beverageBlood-pressure research
Mature barley seed heads and barley kernels in a sunlit field
Library entry · Seeds & grains

Barley

Barley is an ancient cereal grain used in porridges, breads, soups, drinks and malted foods; its form determines whole-grain status, fiber context and suitability.

Traditional staple foodSoups, porridges and grain bowlsFlour and baking
Red, gold and cream quinoa panicles growing in the Andean highlands
Library entry · Seeds & grains

Quinoa

Quinoa is an Andean seed and pseudocereal with deep Indigenous food history, commonly cooked like a grain and available as whole seed, flakes, flour and processed foods.

Traditional Andean staple foodCooked grain-style dishesBreakfast porridges and soups
Bright yellow-orange barberry berries on a leafy branch
Library entry · Other wonders

Berberine

A bioactive plant alkaloid working through the same cellular pathway as metformin.

blood sugar supportcholesterol/lipid supportPCOS-related insulin resistance
A whole garlic bulb with one clove separated and peeled
Library entry · Spices & herbs

Garlic

Strong meta-analytic support for lowering blood pressure — comparable to first-line medication in a majority of hypertensive patients.

blood pressure supportcholesterol/lipid supportimmune support
A watermelon rind cross-section beside a glass of pale pink juice
Library entry · Other wonders

L-Citrulline

An amino acid the body converts into L-arginine, the raw material for nitric oxide — the same vessel-relaxing signal PDE5 inhibitor drugs work by preserving.

erectile function supportblood pressure supportexercise/blood-flow support
Walnuts and pumpkin seeds scattered on cream cloth
Library entry · Other wonders

L-Arginine

The direct precursor the body uses to make nitric oxide, with a genuinely solid double-blind RCT in vasculogenic ED.

erectile function support (vascular-cause ED)blood flow/circulation support
A pomegranate cut in half showing ruby-red arils beside a glass of juice
Library entry · Berries & fruits

Pomegranate

A fertility and vitality symbol across nearly every ancient Mediterranean culture — with genuinely mixed modern evidence.

general polyphenol/antioxidant supportblood pressure support (modest)traditional fertility symbol
Rough reddish-brown bark strips on a dark wood surface
Library entry · Other wonders

Yohimbine (Yohimbe Bark)

Real clinical history predating sildenafil, real cardiovascular risk, and a documented supplement-quality problem — treated with equal weight to all three.

erectile function support (mixed evidence)general energy/stimulant tonic (traditional)athletic performance/fat loss (popular modern use)
Fan-shaped golden-green ginkgo leaves scattered on a cream surface
Library entry · Nuts & trees

Ginkgo Biloba

Two genuinely separate traditional uses — a documented-toxic food (the seed) and a much safer, better-studied medicine (the leaf extract) — worth keeping clearly distinct.

antidepressant-induced sexual dysfunction support (leaf extract, adjunct)circulation/blood-flow support (leaf extract)cognitive support (leaf extract, not this cluster's focus)
Round pink-purple red clover blossoms with green trefoil leaves
Library entry · Leaves & teas

Red Clover

A common meadow plant whose isoflavones give it one of the more consistent modern evidence records for hot flashes.

hot flash frequency supportcardiovascular support (preliminary)traditional blood-purifying tonic
Steamed edamame pods beside a block of white tofu
Library entry · Vegetables & greens

Soy Isoflavones

One of the largest evidence bases in this whole guide — plus a genuinely fascinating gut-microbiome nuance most content misses.

hot flash frequency and severity supportgeneral cardiovascular and bone health supporttraditional East Asian dietary staple
A wooden spoon of pale beige psyllium husk powder beside a glass of water
Library entry · Seeds & grains

Psyllium

Centuries of South Asian traditional use (isabgol) and a genuinely solid modern trial record across cholesterol, constipation, and blood sugar.

constipation reliefcholesterol supportblood sugar support (type 2 diabetes)
Reddish-brown bark strips beside pale root pieces and soft grey-green leaves
Library entry · Other wonders

Slippery Elm & Marshmallow Root

Two unrelated plants from two continents that traditional herbalism independently arrived at for the same purpose — soothing irritated digestive tissue with mucilage.

heartburn and acid reflux supportsore throat and cough support (traditional, separate use)general digestive irritation soothing
Long fibrous tan licorice root pieces beside a chewable tablet
Library entry · Other wonders

Licorice Root (DGL)

One of the oldest documented medicinal plants, specifically processed in its DGL form to remove the compound responsible for licorice's most dangerous side effect.

heartburn and acid reflux supportmild peptic ulcer symptom supporttraditional adaptogenic/respiratory tonic (whole licorice)
A glass softgel capsule with deep green-gold oil beside strands of algae
Library entry · Other wonders

Algae Oil (Plant-Based Omega-3)

The direct, plant-based source of the same long-chain omega-3s found in fish oil — because algae, not fish, is where they actually originate.

general anti-inflammatory support relevant to joint healthomega-3 support without fish-derived productscardiovascular and eye health support (broader research)
Rolled oats beside whole oat panicles
FAQ · Oats

Are oats good for cholesterol?

Oat beta-glucan can modestly lower LDL and total cholesterol when an effective amount is consumed regularly as part of an overall heart-healthy diet.

Oat bran and rolled oats as food sources of beta-glucan
FAQ · Oats

What is oat beta-glucan?

Oat beta-glucan is a viscous soluble fiber in oats that has been studied most extensively for its effect on LDL and total cholesterol.