Edema

Edema is fundamentally a disorder of water distribution driven by estrogen dominance and low thyroid function, where water falls out of cells and accumulates in the extracellular spaces rather than remaining properly bound within the cellular structure. 2 Peat argued that the organism's protein matrix changes its electrical properties and water-holding capacity according to the degree of acidity and alkalinity, with alkalinity making the organism retain water and acidity causing it to release water. 1 The energy produced by oxidative metabolism—primarily burning sugar in the presence of oxygen—regulates this acid-alkaline balance, and when metabolism fails, hormonal imbalances shift the system toward an edema state. 1 The hormone most responsible for keeping cells hydrated and functional is thyroid hormone, which enables oxygen use and maintains protective hormones such as progesterone, pregnenolone, testosterone, and DHEA. 1

The central hormonal mechanism involves the conversion of protective steroids into estrogen under stress. Peat explained that under stress or injury, some testosterone or DHEA changes into estrogen, which directly alters the ability to regulate water and tends to create the edema state. 2 While a monthly surge of estrogen serves a physiological function in preparing tissues for pregnancy and lactation, persistent estrogen elevation causes water to escape cellular control throughout the organism, producing the swelling, headaches, and nervous tension associated with PMS and pregnancy complications. 2 Estrogen causes the liver to synthesize less albumin, partly by destabilizing and degrading messenger RNA, and when there is insufficient albumin in the blood, water moves from the bloodstream into the tissues. 6 Peat observed that progesterone and pregnenolone can produce visible reductions in edematous tissue within an hour, and he believed one of their first sites of action is the albumin molecule itself, causing its conformation to open so that it more strongly binds water molecules, thereby changing the blood's oncotic pressure and drawing water back into the capillaries. 6

Sodium plays a critical and widely misunderstood role in edema. Peat maintained that edema often involves a loss of sodium and albumin in the urine, with both entering the tissues along with water. 2 Adequate sodium stabilizes albumin in the bloodstream, attracting water out of dependent tissues and circulating it through the kidneys for elimination. 2 The physiological loss of sodium occurs when energy metabolism fails, as in diabetes, hypothyroidism, hyperestrogenism, and starvation, conditions that share an increased level of free fatty acids in the blood, which impair glucose use. 9 Peat distinguished between typical pitting edema and the firm, non-pitting swelling that results from sodium deficiency causing leakage of albumin, or from hypothyroidism causing accumulation of sugar-containing protein—both of which make water stick around tissue cells. 7 He documented that women with toxemia of pregnancy given extra salt rather than diuretics experienced rapid normalization of blood pressure and resolution of toxemia. 2

The consequences of edema extend far beyond cosmetic concerns. Peat identified edema as a central factor in aging, shock, hypertension, cancer, and heart failure, noting that relieving edema is probably essential to solving those problems. 3 The aging process itself is essentially a loss of water, with a baby's extremely high water content declining from roughly 80 percent to perhaps 55 percent in very old age, and function decreasing along with the water. 4 When thyroid function is low, muscles swell with very little effort, and the resulting energy failure leads to breakdown of barrier function, leaking of substances, and eventually atrophy. 8 Peat recommended that most edemas can be corrected with thyroid, adequate protein, sodium, and magnesium, with progesterone synergizing by acting on mitochondria to increase respiratory efficiency and on structural proteins to change their ionic affinities. 5 He also noted that simply salting food to taste prevented monthly edema problems in women who had previously restricted salt, and that the body adjusts completely to massive changes in salt consumption within two or three days when the person is otherwise well nourished. 2