Natural (B): ingredients are not synthetic or artificial , but extracted directly from either plants or animal products
Natural flavor (B): flavor derived from spices, fruits, fruit juices, vegetables, vegetable juices, plant materials, meat, seafood, poultry, eggs, dairy products or their fermentation products. The significant function of a natural flavor is not nutritional but flavoring
Natural Red 4 (A): Cochineal
Niacin (B): Vitamin B3 .
Nicotinic Acid (B): Vitamin B3 .
NutraSweet (V): Aspartame
Nutritional Yeast (B): a commercial food product containing deactivated yeast . It's sold in the form of yellow powder or flakes. It's used as a condiment or food supplement. It's often vegan, but some brands use animal products like whey .
The most commonly available products are either in powdered form or tablets. My personal preference is the tablets for convenience, yet my wife prefers the powdered form which she puts into shakes and smoothies. Bodybuilders who take protein shakes find the powdered form easy to add to their shakes as a snack replacement. For best results, an ongoing and regular supplement 2 to 3 times daily is most effective. Spread across the day at breakfast, before/after a workout and at bedtime is the most usual timing. For heavy training periods or bodybuilding, between 5 to 15grams per day is common.
Transdermal patches (adhesive patches placed on the skin) may also be used to deliver a steady dose through the skin and into the bloodstream. Testosterone-containing creams and gels that are applied daily to the skin are also available, but absorption is inefficient (roughly 10%, varying between individuals) and these treatments tend to be more expensive. Individuals who are especially physically active and/or bathe often may not be good candidates, since the medication can be washed off and may take up to six hours to be fully absorbed. There is also the risk that an intimate partner or child may come in contact with the application site and inadvertently dose himself or herself; children and women are highly sensitive to testosterone and can suffer unintended masculinization and health effects, even from small doses. Injection is the most common method used by individuals administering AAS for non-medical purposes.