My Enemy Damage Script not working

I’ve read many tutorials and tried different things but it’s not quite working out for me. My enemy has a rigidbody and a box collider, my bullet prefab also has a rigidbody and the circle collider is set on trigger. Not to mention my bullets go right through my enemy =/

using UnityEngine;
using System.Collections;

public class EnemyHealth : MonoBehaviour {

	public float health = 10f;
	public float damageAmount = 10f;

	Animator anim;

	// Use this for initialization
	void Awake () {
		anim = GetComponent <Animator> ();

	// Update is called once per frame
	void OnCollisionEnter2D (Collision2D col) {
		if (col.gameObject.tag == "Bullet") {
			TakeDamage (col.transform);
		} else {
			// Find all of the colliders on the gameobject and set them all to be triggers.
			Collider2D[] cols = GetComponents<Collider2D> ();
			foreach (Collider2D c in cols) {
				c.isTrigger = true;
				anim.SetTrigger ("EnemyDeath");


	void TakeDamage (Transform Enemy)
		health -= damageAmount;

Is everything set the right way in Edit->Project Settings->Physics 2D?