Supplementation with flaxseed oil led to significant decreases in sensitivity, transepidermal water loss, skin roughness and scaling. Smoothness and hydration were increased. The ratio of n-6/n-3 dietary fatty acids in plasma decreased.
Upon supplementation with safflower seed oil, only a significant improvement in skin roughness and hydration was observed; however, the effects were less pronounced and determined at a later point in time than with flaxseed oil. The plasma n-6/n-3 fatty acids ratio increased.
Protein deficiency rarely occurs as an isolated condition. It usually accompanies a deficiency of dietary energy and other nutrients resulting from insufficient food intake.
Deficiency of this severity is very rare in the United States, except as a consequence of pathologic conditions.
The symptoms are most commonly seen in deprived children in poor countries:
- poor musculature,
- thin and fragile hair,
- skin lesions
- hormonal imbalances.
Edema and loss of muscle mass and hair are the prominent signs in adults.